• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Harlow Carr Plant Centre (RHS)

  • × Heucherella 'Alabama Sunrise' (PBR)
  • × Heucherella 'Brass Lantern' (PBR)
  • × Heucherella 'Kimono' (PBR)
  • × Heucherella 'Silver Streak'
  • × Heucherella 'Solar Eclipse'
  • × Heucherella 'Solar Power' (PBR)
  • × Heucherella 'Sweet Tea' (PBR)
  • × Heucherella 'Tapestry' (PBR)
  • × Rhodoxis 'Hebron Farm Cerise'
  • Abelia × grandiflora 'Francis Mason' (v)
  • Abelia × grandiflora 'Kaleidoscope' (PBR) (v)
  • Abeliophyllum distichum
  • Abutilon 'Cynthia Pike' (v)
  • Abutilon 'Marion'
  • Acacia dealbata
  • Acacia dealbata 'Gaulois Astier'
  • Acaena saccaticupula 'Blue Haze'
  • Acanthophyllum cerastioides
  • Acanthus mollis
  • Acanthus spinosus L.
  • Acanthus 'Hollande du Nort'
  • Acer griseum
  • Acer japonicum 'Aconitifolium'
  • Acer palmatum (D)
  • Acer palmatum Going Green = 'Sonkootgre' (PBR)
  • Acer palmatum 'Aoyagi' (P)
  • Acer palmatum 'Beni-maiko' (P)
  • Acer palmatum 'Beni-schichi-henge' (P/v)
  • Acer palmatum 'Bloodgood' (A)
  • Acer palmatum 'Crimson Princess' (D)
  • Acer palmatum 'Crimson Queen' (D)
  • Acer palmatum 'Emerald Lace' (D)
  • Acer palmatum 'Firecracker' (PBR) (D)
  • Acer palmatum 'Garnet' (D)
  • Acer palmatum 'Inaba-shidare' (D)
  • Acer palmatum 'Jerre Schwartz' (Dw)
  • Acer palmatum 'Katsura' (P)
  • Acer palmatum 'Orange Dream' (P)
  • Acer palmatum 'Orangeola' (D)
  • Acer palmatum 'Osakazuki' (A)
  • Acer palmatum 'Pévé Dave'
  • Acer palmatum 'Red Pygmy' (L)
  • Acer palmatum 'Redwine' (PBR) (P)
  • Acer palmatum 'Sango-kaku' (P)
  • Acer palmatum 'Seiryu' (D)
  • Acer palmatum 'Shaina' (P)
  • Acer palmatum 'Shigi-tatsu-sawa' (A/v)
  • Acer palmatum 'Shin-deshojo' (P)
  • Acer palmatum 'Shirazz' (P/v)
  • Acer palmatum 'Skeeter's Broom' (Dw)
  • Acer palmatum 'Sumi-nagashi' (M)
  • Acer palmatum 'Summer Gold' (P)
  • Acer palmatum 'Taylor' (PBR) (P/v)
  • Acer palmatum 'Trompenburg' (M)
  • Acer palmatum 'Wilson's Pink Dwarf' (Dw)
  • Acer shirasawanum 'Aureum'
  • Acer shirasawanum 'Jordan'
  • Achillea filipendulina 'Cloth of Gold'
  • Achillea filipendulina 'Gold Plate'
  • Achillea millefolium 'Apricot Delight' (Tutti Frutti Series)
  • Achillea millefolium 'Cassis'
  • Achillea millefolium 'Cerise Queen'
  • Achillea millefolium 'Lansdorferglut'
  • Achillea millefolium 'Pink Grapefruit' (Tutti Frutti Series)
  • Achillea millefolium 'Pomegranate' (Tutti Frutti Series)
  • Achillea millefolium 'Red Velvet'
  • Achillea millefolium 'Rose Madder'
  • Achillea millefolium 'Summer Fruits Lemon' (Summer Fruits Series)
  • Achillea millefolium 'Wonderful Wampee' (Tutti Frutti Series)
  • Achillea ptarmica (The Pearl Group) 'The Pearl' (clonal) (d)
  • Achillea Anthea = 'Anblo'
  • Achillea Summer Berries (mixed)
  • Achillea 'Alabaster'
  • Achillea 'Apfelblüte' (Galaxy Series)
  • Achillea Colorado Group
  • Achillea 'Coronation Gold'
  • Achillea 'Credo'
  • Achillea 'Fanal'
  • Achillea 'Feuerland'
  • Achillea 'Hella Glashoff'
  • Achillea 'Hoffnung'
  • Achillea 'Inca Gold'
  • Achillea 'Lachsschönheit' (Galaxy Series)
  • Achillea 'Martina'
  • Achillea 'Moonshine'
  • Achillea 'Paprika' (Galaxy Series)
  • Achillea 'Pretty Belinda'
  • Achillea Summer Pastels Group
  • Achillea 'Summerwine'
  • Achillea 'Terracotta'
  • Achillea 'Walther Funcke'
  • Aconitum carmichaelii
  • Aconitum carmichaelii (Arendsii Group) 'Arendsii'
  • Aconitum carmichaelii (Arendsii Group) 'Cloudy' (PBR)
  • Aconitum chasmanthum
  • Aconitum napellus subsp. vulgare 'Albidum'
  • Aconitum × cammarum 'Bicolor'
  • Aconitum 'Bressingham Spire'
  • Aconitum 'Ivorine'
  • Aconitum 'Newry Blue'
  • Aconitum 'Spark's Variety'
  • Acorus gramineus 'Golden Edge' (v)
  • Acorus gramineus 'Ogon' (v)
  • Acorus gramineus 'Variegatus' (v)
  • Actaea arizonica
  • Actaea matsumurae 'White Pearl'
  • Actaea simplex (Atropurpurea Group) 'Brunette'
  • Actaea simplex (Atropurpurea Group) 'James Compton'
  • Actaea 'Chocoholic'
  • Actinidia deliciosa Solissimo = 'Renact' (PBR) (s-p/F)
  • Actinidia kolomikta
  • Actinidia pilosula (Finet & Gagnep.) Stapf ex Hand.-Mazz.
  • Adiantum aleuticum 'Imbricatum'
  • Adiantum aleuticum 'Miss Sharples'
  • Adiantum hispidulum
  • Adiantum hispidulum 'Bronze Venus'
  • Adiantum venustum
  • Adiantum × mairisii
  • Aegopodium podagraria 'Variegatum' (v)
  • Aethionema 'Warley Rose'
  • Agastache aurantiaca 'Apricot Sprite'
  • Agastache mexicana 'Red Fortune' (PBR)
  • Agastache rugosa 'Golden Jubilee'
  • Agastache 'Blackadder'
  • Agastache 'Blue Fortune'
  • Agastache 'Kudos Ambrosia' (PBR) (Kudos Series)
  • Agastache 'Kudos Coral' (PBR) (Kudos Series)
  • Agastache 'Kudos Mandarin' (PBR) (Kudos Series)
  • Agastache 'Kudos Silver Blue' (Kudos Series)
  • Agastache 'Purple Haze'
  • Agastache 'Raspberry Summer' (PBR)
  • Agastache 'Summer Glow'
  • Agastache 'Summer Sunset' (PBR)
  • Agastache 'Tangerine Dreams'
  • Ageratina altissima 'Chocolate'
  • Ajuga reptans Black Scallop = 'Binblasca' (PBR)
  • Ajuga reptans 'Braunherz'
  • Ajuga reptans 'Burgundy Glow' (v)
  • Ajuga reptans 'Catlin's Giant'
  • Ajuga reptans 'Golden Glow' (v)
  • Ajuga reptans 'Multicolor' (v)
  • Ajuga tenorei 'Valfredda'
  • Ajuga 'Pink Lightning' (v)
  • Akebia quinata
  • Albizia julibrissin 'Summer Chocolate' (PBR)
  • Alcea rosea 'Halo Apricot' (Halo Series)
  • Alcea rosea 'Halo Blush' (Halo Series)
  • Alcea rosea 'Halo Cerise' (Halo Series)
  • Alcea rosea 'Halo Cream' (Halo Series)
  • Alcea rosea 'Halo Red' (Halo Series)
  • Alcea rosea 'Halo White' (Halo Series)
  • Alcea rosea 'Spring Celebrities Lemon' (Spring Celebrities Series) (d)
  • Alcea rosea 'Spring Celebrities White' (Spring Celebrities Series) (d)
  • Alchemilla mollis
  • Alchemilla mollis 'Thriller'
  • Alchemilla sericata 'Gold Strike'
  • Allium altissimum 'Goliath'
  • Allium atropurpureum
  • Allium caeruleum
  • Allium cepa (Aggregatum Group) 'Matador'
  • Allium cepa (Cepa Group) 'Ailsa Craig'
  • Allium cepa (Cepa Group) 'Red Baron'
  • Allium cepa 'White Lisbon'
  • Allium cernuum
  • Allium cristophii
  • Allium drummondii
  • Allium giganteum
  • Allium hollandicum 'Purple Sensation'
  • Allium insubricum
  • Allium jesdianum 'Early Emperor'
  • Allium jesdianum 'Purple King'
  • Allium karataviense
  • Allium karataviense 'Ivory Queen'
  • Allium macleanii
  • Allium mairei
  • Allium moly 'Jeannine'
  • Allium neapolitanum
  • Allium neapolitanum Cowanii Group
  • Allium nigrum
  • Allium oreophilum
  • Allium porrum 'Musselburgh'
  • Allium porrum 'Verina'
  • Allium rosenbachianum 'Album'
  • Allium rosenbachianum Regel
  • Allium roseum
  • Allium schoenoprasum 'Forescate'
  • Allium schubertii
  • Allium scorodoprasum 'Art'
  • Allium scorodoprasum 'Passion'
  • Allium senescens
  • Allium siculum subsp. dioscoridis
  • Allium sphaerocephalon
  • Allium stellatum
  • Allium stipitatum 'Mars'
  • Allium stipitatum 'Mount Everest'
  • Allium stipitatum 'Violet Beauty'
  • Allium stipitatum 'White Giant'
  • Allium tuberosum
  • Allium vineale 'Hair'
  • Allium 'Ambassador'
  • Allium 'Caméléon'
  • Allium 'Gladiator'
  • Allium 'Globemaster'
  • Allium 'Lucy Ball'
  • Allium 'Mercurius' (PBR)
  • Allium 'Miami'
  • Allium 'Mont Blanc'
  • Allium 'Pinball Wizard'
  • Allium 'Purple Rain'
  • Allium 'Statos'
  • Aloysia citrodora
  • Alstroemeria psittacina 'Royal Star' (v)
  • Alstroemeria Diana, Princess of Wales = 'Stablaco'
  • Alstroemeria H.R.H. Princess Alice = 'Staverpi'
  • Alstroemeria Indian Summer = 'Tesronto' (PBR) (Summer Paradise Series)
  • Alstroemeria Inticancha Cabana = 'Tescaban' (Inticancha Series)
  • Alstroemeria Inticancha Dark Purple = 'Tesdarklin' (PBR) (Inticancha Series)
  • Alstroemeria Inticancha Maya = 'Tesmaya' (PBR) (Inticancha Series)
  • Alstroemeria Inticancha Red = 'Tesrobin' (PBR) (Inticancha Series)
  • Alstroemeria Inticancha White Pink Blush = 'Tesblushin' (PBR) (Inticancha Series)
  • Alstroemeria Princess Claire = 'Zapriclair' (PBR) (Princess Series)
  • Alstroemeria Princess Eliane = 'Zaprielia' (PBR) (Princess Series)
  • Alstroemeria Princess Fabiana = 'Zaprifabi' (PBR) (Princess Series)
  • Alstroemeria Princess Kate = 'Zaprikate' (PBR) (Princess Series)
  • Alstroemeria Princess Lilian = 'Zaprilian' (PBR) (Princess Series)
  • Alstroemeria Princess Paola = 'Stapripal' (PBR) (Princess Series)
  • Alstroemeria Princess Sara = 'Staprisara' (PBR) (Princess Series)
  • Alstroemeria Summer Breeze = 'Teshunte' (PBR) (Summer Paradise Series)
  • Alstroemeria Summer Party = 'Tessumpar' (Summer Paradise Series)
  • Alstroemeria 'Apollo'
  • Alstroemeria 'Avanti'
  • Alstroemeria 'Christina' (PBR) (Little Miss Series)
  • Alstroemeria 'Davina' (PBR) (Little Miss Series)
  • Alstroemeria 'Eleanor' (Little Miss Series)
  • Alstroemeria 'Friendship'
  • Alstroemeria 'Gina' (PBR) (Little Miss Series)
  • Alstroemeria 'Gloria'
  • Alstroemeria 'Golden Delight'
  • Alstroemeria 'Natalie' (PBR) (Little Miss Series)
  • Alstroemeria 'Orange Supreme'
  • Alstroemeria 'Pandora' (PBR)
  • Alstroemeria 'Pink Sensation'
  • Alstroemeria 'Red Beauty'
  • Alstroemeria 'Roselind' (Little Miss Series)
  • Alstroemeria 'Summertime'
  • Alstroemeria 'Tara' (PBR) (Little Miss Series)
  • Amelanchier × grandiflora 'Autumn Brilliance'
  • Amelanchier × grandiflora 'Ballerina'
  • Amsonia hubrichtii
  • Amsonia illustris
  • Amsonia orientalis
  • Amsonia tabernaemontana
  • Amsonia tabernaemontana var. salicifolia
  • Amsonia 'Blue Ice'
  • Anaphalis triplinervis
  • Anaphalis triplinervis 'Sommerschnee'
  • Anchusa azurea 'Feltham Pride'
  • Anchusa azurea 'Loddon Royalist'
  • Anchusa azurea 'Opal'
  • Androsace cylindrica
  • Androsace cylindrica × hirtella
  • Androsace pubescens
  • Androsace pyrenaica
  • Androsace sempervivoides
  • Anemanthele lessoniana
  • Anemone blanda
  • Anemone blanda 'Alba'
  • Anemone blanda blue-flowered
  • Anemone blanda var. rosea
  • Anemone blanda white-flowered
  • Anemone coronaria De Caen Group
  • Anemone coronaria De Caen Group blue-flowered
  • Anemone coronaria De Caen Group pink-flowered
  • Anemone coronaria De Caen Group red-flowered
  • Anemone coronaria 'Harmony Orchid' (Harmony Series)
  • Anemone coronaria 'Harmony Pearl' (Harmony Series)
  • Anemone coronaria 'Harmony Scarlet' (Harmony Series)
  • Anemone coronaria Saint Bridgid Group (d)
  • Anemone flaccida
  • Anemone hupehensis 'Hadspen Abundance'
  • Anemone hupehensis 'Pocahontas' (PBR) (Fantasy Series)
  • Anemone hupehensis 'Praecox'
  • Anemone hupehensis 'Red Riding Hood' (Fantasy Series)
  • Anemone hupehensis var. japonica 'Pamina'
  • Anemone hupehensis var. japonica 'Prinz Heinrich'
  • Anemone hupehensis var. japonica 'Splendens'
  • Anemone multifida Poir.
  • Anemone multifida 'Rubra'
  • Anemone nemorosa
  • Anemone nemorosa 'Allenii'
  • Anemone nemorosa 'Robinsoniana'
  • Anemone nemorosa 'Vestal' (d)
  • Anemone nemorosa white-flowered
  • Anemone polyanthes
  • Anemone ranunculoides 'Pleniflora' (d)
  • Anemone rivularis
  • Anemone sylvestris
  • Anemone tomentosa
  • Anemone × hybrida 'Andrea Atkinson'
  • Anemone × hybrida 'Honorine Jobert'
  • Anemone × hybrida 'Königin Charlotte'
  • Anemone × hybrida 'Lady Gilmour' Wolley-Dod
  • Anemone × hybrida 'Richard Ahrens'
  • Anemone × hybrida 'Robustissima'
  • Anemone × hybrida 'Rosenschale'
  • Anemone × hybrida 'September Charm'
  • Anemone × hybrida 'Serenade'
  • Anemone × hybrida 'Whirlwind'
  • Anemone Elfin Swan = 'Macane017' (PBR)
  • Anemone Ruffled Swan = 'Macane007' (PBR)
  • Anemone Wild Swan = 'Macane001' (PBR)
  • Angelica archangelica
  • Angelica gigas
  • Angelica pachycarpa
  • Angelonia Archangel Deep Rose = 'Balarcrose'
  • Antennaria rosea
  • Anthemis carpatica 'Karpatenschnee'
  • Anthemis marschalliana
  • Anthemis sancti-johannis
  • Anthemis tinctoria 'Alba'
  • Anthemis tinctoria 'E.C. Buxton'
  • Anthemis tinctoria 'Kelwayi'
  • Anthemis tinctoria 'Sauce Hollandaise'
  • Anthemis tinctoria 'Wargrave Variety'
  • Anthemis Susanna Mitchell = 'Blomit'
  • Anthriscus sylvestris 'Ravenswing'
  • Anthyllis montana subsp. atropurpurea
  • Apium graveolens var. dulce 'Celebrity'
  • Aquilegia bertolonii
  • Aquilegia flabellata 'Georgia' (State Series)
  • Aquilegia flabellata var. pumila
  • Aquilegia flabellata var. pumila f. alba
  • Aquilegia skinneri 'Tequila Sunrise'
  • Aquilegia vulgaris 'Clementine Blue' (Clementine Series) (d)
  • Aquilegia vulgaris 'Clementine Dark Purple' (Clementine Series) (d)
  • Aquilegia vulgaris 'Clementine Red' (Clementine Series) (d)
  • Aquilegia vulgaris 'Clementine Rose' (Clementine Series) (d)
  • Aquilegia vulgaris 'Clementine Salmon Rose' (Clementine Series) (d)
  • Aquilegia vulgaris 'Clementine White' (Clementine Series) (d)
  • Aquilegia vulgaris 'Crystal Star'
  • Aquilegia vulgaris var. alba
  • Aquilegia vulgaris var. stellata 'Black Barlow' (Barlow Series) (d)
  • Aquilegia vulgaris var. stellata 'Blue Barlow' (Barlow Series) (d)
  • Aquilegia vulgaris var. stellata 'Bordeaux Barlow' (Barlow Series) (d)
  • Aquilegia vulgaris var. stellata 'Christa Barlow' (Barlow Series) (d)
  • Aquilegia vulgaris var. stellata 'Nora Barlow' (Barlow Series) (d)
  • Aquilegia vulgaris var. stellata 'Rose Barlow' (Barlow Series) (d)
  • Aquilegia vulgaris var. stellata 'Ruby Port' (d)
  • Aquilegia vulgaris var. stellata 'White Barlow' (Barlow Series) (d)
  • Aquilegia vulgaris 'William Guiness'
  • Aquilegia Spring Magic White (Spring Magic Series)
  • Aquilegia 'Alaska' (State Series)
  • Aquilegia Biedermeier Group
  • Aquilegia 'Blue Star' (Star Series)
  • Aquilegia 'Colorado' (State Series)
  • Aquilegia 'Crimson Star'
  • Aquilegia 'Dragonfly'
  • Aquilegia 'Florida' (State Series)
  • Aquilegia 'Louisiana' (State Series)
  • Aquilegia 'Schneekönigin'
  • Aquilegia 'Virginia' (State Series)
  • Aquilegia 'Winky Blue-White' (Winky Series)
  • Aquilegia 'Winky Purple-White' (Winky Series)
  • Aquilegia 'Winky Red-White' (Winky Series)
  • Aquilegia 'Winky Rose-Rose' (Winky Series)
  • Aquilegia 'Yellow Star' (Star Series)
  • Arabis blepharophylla 'Rose Delight'
  • Arachniodes davalliaeformis
  • Arachniodes simplicior
  • Arbutus unedo f. rubra
  • Arbutus × andrachnoides
  • Arenaria montana
  • Argyranthemum LaRita Banana Split = 'Kleaf10067' (LaRita Series)
  • Argyranthemum 'Everest'
  • Argyrocytisus battandieri
  • Arisaema candidissimum
  • Arisarum proboscideum
  • Armeria juniperifolia
  • Armeria maritima
  • Armeria maritima 'Alba'
  • Armeria maritima 'Armada Rose' (Armada Series)
  • Armeria maritima 'Düsseldorfer Stolz'
  • Armeria maritima 'Splendens'
  • Armeria pseudarmeria 'Ballerina Lilac' (Ballerina Series)
  • Armeria pseudarmeria 'Ballerina Red' (Ballerina Series)
  • Armeria pseudarmeria 'Ballerina White' (Ballerina Series)
  • Armeria splendens 'Perfecta'
  • Armeria 'Joystick Lilac Shades' (Joystick Series)
  • Armeria 'Joystick Red' (Joystick Series)
  • Armeria 'Joystick White' (Joystick Series)
  • Aronia melanocarpa
  • Artemisia lactiflora Guizhou Group
  • Artemisia schmidtiana 'Nana'
  • Artemisia stelleriana 'Boughton Silver'
  • Artemisia 'Powis Castle'
  • Arum italicum subsp. italicum 'Marmoratum'
  • Aruncus aethusifolius
  • Aruncus dioicus
  • Aruncus dioicus 'Kneiffii'
  • Arundo donax var. versicolor (v)
  • Asclepias tuberosa
  • Asparagus officinalis 'Pacific Purple'
  • Asphodeline lutea
  • Asplenium scolopendrium
  • Asplenium scolopendrium 'Angustatum'
  • Asplenium scolopendrium Cristatum Group
  • Asplenium scolopendrium Undulatum Group
  • Asplenium trichomanes
  • Asplenium trichomanes Cristatum Group
  • Astelia banksii
  • Astelia nervosa 'Westland'
  • Astelia 'Silver Shadow' (PBR)
  • Aster alpinus 'Happy End'
  • Aster amellus 'Brilliant'
  • Aster amellus 'King George'
  • Aster amellus 'Rosa Erfüllung'
  • Aster amellus 'Rudolph Goethe'
  • Aster amellus 'Sonia'
  • Aster amellus 'Veilchenkönigin'
  • Aster pyrenaeus 'Lutetia'
  • Aster tongolensis 'Berggarten'
  • Aster × frikartii 'Flora's Delight'
  • Aster × frikartii 'Jungfrau'
  • Aster × frikartii 'Mönch'
  • Aster 'Cheavers'
  • Aster 'Dwarf Barbados'
  • Astilbe chinensis var. pumila
  • Astilbe chinensis 'Visions'
  • Astilbe simplicifolia 'White Sensation' (PBR)
  • Astilbe thunbergii
  • Astilbe × crispa 'Perkeo'
  • Astilbe Elizabeth Bloom = 'Eliblo' (PBR)arendsii)
  • Astilbe 'Astary Pink' (× arendsii) (Astary Series)
  • Astilbe 'Astary Red' (× arendsii) (Astary Series)
  • Astilbe 'Astary White' (× arendsii) (Astary Series)
  • Astilbe 'Brautschleier' (× arendsii)
  • Astilbe 'Bressingham Beauty' (× arendsii)
  • Astilbe 'Bumalda' (× arendsii)
  • Astilbe 'Cattleya' (× arendsii)
  • Astilbe 'Delft Lace'
  • Astilbe 'Deutschland' (japonica hybrid)
  • Astilbe 'Dusseldorf' (japonica hybrid)
  • Astilbe 'Europa' (japonica hybrid)
  • Astilbe 'Fanal' (× arendsii)
  • Astilbe 'Federsee' (× arendsii)
  • Astilbe 'Hyazinth' (× arendsii)
  • Astilbe 'Inshriach Pink' (simplicifolia hybrid)
  • Astilbe 'Köln' (japonica hybrid)
  • Astilbe 'Kvële' (× arendsii)
  • Astilbe 'Mainz' (japonica hybrid)
  • Astilbe 'Montgomery' (japonica hybrid)
  • Astilbe 'Rheinland' (japonica hybrid)
  • Astilbe 'Rotlicht' (× arendsii)
  • Astilbe 'Snowdrift' (× arendsii)
  • Astilbe 'Sprite' (simplicifolia hybrid)
  • Astilbe 'Straussenfeder' (thunbergii hybrid)
  • Astilbe 'Walter Bitner'
  • Astilbe 'Willie Buchanan' (simplicifolia hybrid)
  • Astilbe 'Zuster Theresa' (× arendsii)
  • Astragalus canadensis
  • Astrantia major
  • Astrantia major 'Abbey Road' (PBR)
  • Astrantia major 'Claret'
  • Astrantia major 'Florence' (PBR)
  • Astrantia major Gill Richardson Group
  • Astrantia major 'Pink Crush'
  • Astrantia major 'Primadonna'
  • Astrantia major 'Rubra'
  • Astrantia major 'Ruby Cloud'
  • Astrantia major 'Ruby Wedding'
  • Astrantia major 'Star of Beauty' (PBR) (Sparkling Stars Series)
  • Astrantia major 'Star of Billion' (PBR)
  • Astrantia major 'Star of Royals' (PBR)
  • Astrantia major subsp. involucrata 'Shaggy'
  • Astrantia major 'Sunningdale Variegated' (v)
  • Astrantia major var. rosea
  • Astrantia major 'Venice' (PBR)
  • Astrantia maxima
  • Astrantia 'Buckland'
  • Astrantia 'Hadspen Blood'
  • Astrantia 'Harvington Adrian's Choice Pink'
  • Astrantia 'Harvington Selected Red'
  • Astrantia 'Moulin Rouge' (PBR)
  • Astrantia 'Roma' (PBR)
  • Astrantia 'Snow Star' (PBR)
  • Astrantia 'Star of Passion' (PBR)
  • Astrantia 'Star of Treasure' (PBR)
  • Athyrium filix-femina
  • Athyrium filix-femina 'Frizelliae'
  • Athyrium filix-femina 'Minutissimum'
  • Athyrium filix-femina subsp. angustum
  • Athyrium filix-femina subsp. angustum f. rubellum 'Lady in Red'
  • Athyrium filix-femina 'Victoriae'
  • Athyrium niponicum var. pictum
  • Athyrium niponicum var. pictum 'Apple Court'
  • Athyrium niponicum var. pictum 'Red Beauty'
  • Athyrium niponicum var. pictum 'Regal Red'
  • Athyrium niponicum var. pictum 'Silver Falls'
  • Athyrium otophorum var. okanum
  • Athyrium vidalii
  • Athyrium 'Branford Beauty'
  • Athyrium 'Ghost'
  • Aubrieta gracilis 'Kitte Blue'
  • Aubrieta gracilis 'Kitte Rose'
  • Aubrieta gracilis 'Kitte White'
  • Aubrieta Axcent Light Blue = 'Abrz0002' (PBR) (Axcent Series)
  • Aubrieta Axcent Lilac = 'Audelip' (PBR) (Axcent Series)
  • Aubrieta 'Argenteovariegata' (v)
  • Aucuba japonica 'Crotonifolia' (f/v)
  • Aucuba japonica 'Golden Girl' (v)
  • Aucuba japonica 'Golden King' (m/v)
  • Aucuba japonica 'Marmorata' (v)
  • Aucuba japonica 'Rozannie' (f)
  • Aucuba japonica 'Sulphurea Marginata' (f/v)
  • Aucuba japonica 'Variegata' (f/v)
  • Baptisia alba var. macrophylla
  • Baptisia australis
  • Begonia 'Apricot Nectar' (Fragrant Falls Improved Series) (T)
  • Begonia 'Matisse' (Impressionist Series)
  • Begonia 'Monet' (Impressionist Series)
  • Begonia 'Picasso' (Impressionist Series)
  • Begonia 'Renoir' (Impressionist Series)
  • Begonia 'Van Gogh' (Impressionist Series)
  • Berberis thunbergii 'Aurea'
  • Berberis thunbergii 'Diabolic'
  • Berberis thunbergii f. atropurpurea 'Admiration' (PBR)
  • Berberis thunbergii f. atropurpurea 'Atropurpurea Nana'
  • Berberis thunbergii f. atropurpurea 'Concorde'
  • Berberis thunbergii f. atropurpurea 'Dart's Red Lady'
  • Berberis thunbergii f. atropurpurea 'Golden Ring' (v)
  • Berberis thunbergii f. atropurpurea 'Harlequin' (v)
  • Berberis thunbergii f. atropurpurea 'Helmond Pillar'
  • Berberis thunbergii f. atropurpurea 'Red Chief'
  • Berberis thunbergii f. atropurpurea 'Red Rocket'
  • Berberis thunbergii f. atropurpurea 'Rose Glow' (v)
  • Berberis thunbergii 'Golden Rocket' (PBR)
  • Berberis thunbergii 'Golden Torch'
  • Berberis thunbergii 'Maria' (PBR)
  • Berberis thunbergii 'Orange Rocket' (PBR)
  • Berberis thunbergii 'Pow-wow'
  • Berberis thunbergii 'Redtorch' (PBR)
  • Berberis thunbergii 'Starburst' (PBR) (v)
  • Bergenia cordifolia
  • Bergenia cordifolia 'Purpurea'
  • Bergenia purpurascens var. delavayi
  • Bergenia 'Apple Blossom'
  • Bergenia 'Baby Doll'
  • Bergenia 'Bach'
  • Bergenia 'Ballawley' clonal
  • Bergenia 'BartÓk'
  • Bergenia 'Bressingham Ruby'
  • Bergenia 'Bressingham White'
  • Bergenia 'Eroica'
  • Bergenia 'Harzkristall'
  • Bergenia 'Overture'
  • Bergenia 'Pink Dragonfly'
  • Bergenia 'Rosenkristall'
  • Bergenia 'Rosi Klose'
  • Bergenia 'Rotblum'
  • Bergenia 'Silberlicht'
  • Bergenia 'Sunningdale'
  • Bergenia 'Wintermärchen'
  • Berkheya purpurea
  • Beta vulgaris 'Pablo'
  • Beta vulgaris subsp. cicla var. cicla 'Perpetual Spinach'
  • Beta vulgaris subsp. cicla var. flavescens Bright Lights
  • Betonica macrantha
  • Betonica macrantha 'Rosea'
  • Betonica officinalis 'Hummelo'
  • Betonica officinalis 'Wisley White'
  • Betula utilis subsp. jacquemontii 'Silver Shadow'
  • Blechnum chilense
  • Blechnum penna-marina
  • Blechnum spicant
  • Bletilla striata
  • Bletilla striata f. gebina
  • Bongardia chrysogonum
  • Brachyglottis (Dunedin Group) 'Drysdale'
  • Brachyglottis (Dunedin Group) 'Sunshine'
  • Brachyglottis Walberton's Silver Dormouse = 'Walbrach' (PBR)
  • Brassica napus (Napobrassica Group) 'Acme'
  • Brassica napus (Napobrassica Group) 'Marian'
  • Brassica napus 'Jerome' (PBR)
  • Brassica oleracea (Botrytis Group) 'Avalanche'
  • Brassica oleracea (Botrytis Group) 'Graffiti'
  • Brassica oleracea (Botrytis Group) 'Nautilus'
  • Brassica oleracea (Capitata Group) 'Duncan'
  • Brassica oleracea (Capitata Group) 'Hispi'
  • Brassica oleracea (Capitata Group) 'Minicole'
  • Brassica oleracea (Capitata Group) 'Offenham'
  • Brassica oleracea (Capitata Group) 'Savoy Mila'
  • Brassica oleracea (Capitata Group) 'Stonehead'
  • Brassica oleracea (Gongylodes Group) 'Quickstar'
  • Brassica oleracea (Italica Group) 'Bordeaux'
  • Brassica oleracea (Italica Group) 'Claret'
  • Brassica oleracea (Italica Group) 'Kabuki'
  • Brassica oleracea (Italica Group) 'Marathon'
  • Brassica rapa (Rapifera Group) 'Manchester Market'
  • Brassica rapa (Rapifera Group) 'Primera'
  • Briza media
  • Briza media 'Golden Bee'
  • Briza media 'Russells' (PBR)
  • Brunnera macrophylla
  • Brunnera macrophylla 'Betty Bowring'
  • Brunnera macrophylla 'Dawson's White' (v)
  • Brunnera macrophylla 'Hadspen Cream' (v)
  • Brunnera macrophylla 'Jack Frost' (PBR)
  • Brunnera macrophylla 'Little Jack' (v)
  • Brunnera macrophylla 'Looking Glass' (PBR)
  • Buddleja alternifolia
  • Buddleja davidii Buzz Candy Pink = 'Tobudsopin' (Buzz Series)
  • Buddleja davidii Buzz Indigo (Buzz Series)
  • Buddleja davidii Buzz Ivory = 'Tobudivory' (PBR) (Buzz Series)
  • Buddleja davidii Buzz Magenta = 'Tobudpipur' (PBR) (Buzz Series)
  • Buddleja davidii Buzz Sky Blue = 'Tobudskybl' (PBR) (Buzz Series)
  • Buddleja davidii Buzz Velvet = 'Tobudvelve' (PBR) (Buzz Series)
  • Buddleja davidii Buzz Violet = 'Tobudviole' (Buzz Series)
  • Buddleja davidii Nanho Blue = 'Mongo'
  • Buddleja davidii Nanho Purple = 'Monum'
  • Buddleja davidii Rêve de Papillon = 'Minpap'
  • Buddleja davidii 'Black Knight'
  • Buddleja davidii 'Empire Blue'
  • Buddleja davidii 'Gulliver' (PBR)
  • Buddleja davidii 'Harlequin' (v)
  • Buddleja davidii 'Panache'
  • Buddleja davidii 'Royal Red'
  • Buddleja davidii 'Santana' (v)
  • Buddleja davidii 'White Profusion'
  • Buddleja fallowiana var. alba
  • Buddleja Sugar Plum = 'Lonplum' (PBR)
  • Buddleja 'Lochinch'
  • Buddleja 'Miss Ruby' (PBR)
  • Buddleja 'Morning Mist' (PBR)
  • Buddleja 'Pink Delight'
  • Buddleja 'West Hill'
  • Bupleurum fruticosum
  • Calamagrostis brachytricha
  • Calamagrostis × acutiflora 'Avalanche'
  • Calamagrostis × acutiflora 'Karl Foerster'
  • Calamagrostis × acutiflora 'Overdam' (v)
  • Callicarpa bodinieri var. giraldii 'Profusion'
  • Callistemon citrinus 'Splendens'
  • Callistemon pallidus
  • Callistemon rigidus
  • Caltha palustris
  • Caltha palustris var. alba
  • Caltha palustris var. palustris 'Plena' (d)
  • Camassia cusickii
  • Camassia cusickii 'Zwanenburg'
  • Camassia leichtlinii 'Sacajawea' (v)
  • Camassia leichtlinii 'Semiplena' (d)
  • Camassia leichtlinii subsp. leichtlinii
  • Camassia leichtlinii subsp. suksdorfii 'Alba'
  • Camassia leichtlinii subsp. suksdorfii Caerulea Group
  • Camassia quamash
  • Camassia quamash 'Blue Melody' (v)
  • Camassia quamash 'Orion'
  • Camassia 'Blue Heaven'
  • Camellia hiemalis 'Dazzler'
  • Camellia japonica 'Aaron's Ruby'
  • Camellia japonica 'Adeyaka'
  • Camellia japonica 'Adolphe Audusson'
  • Camellia japonica 'Akashigata'
  • Camellia japonica 'Alexander Hunter'
  • Camellia japonica 'Althaeiflora'
  • Camellia japonica 'Anemoniflora'
  • Camellia japonica 'Angello'
  • Camellia japonica 'Apollo' ambig.
  • Camellia japonica 'Apple Blossom'
  • Camellia japonica 'Ave Maria'
  • Camellia japonica 'Baby Sis'
  • Camellia japonica 'Beau Harp'
  • Camellia japonica 'Berenice Boddy'
  • Camellia japonica 'Betty Robinson'
  • Camellia japonica 'Betty Sheffield'
  • Camellia japonica 'Betty Sheffield Pink'
  • Camellia japonica 'Black Magic'
  • Camellia japonica 'Black Tie'
  • Camellia japonica 'Blood of China'
  • Camellia japonica 'Blush Tinsie'
  • Camellia japonica 'Bob Hope'
  • Camellia japonica 'Bob's Tinsie'
  • Camellia japonica 'Bright Buoy'
  • Camellia japonica 'Brushfield's Yellow'
  • Camellia japonica 'C.M. Hovey'
  • Camellia japonica 'Cara Mia'
  • Camellia japonica 'Carolyn Tuttle'
  • Camellia japonica 'Cinderella'
  • Camellia japonica 'Comte de Gomer'
  • Camellia japonica 'Coquettii'
  • Camellia japonica 'Dahlohnega'
  • Camellia japonica 'Daphne du Maurier'
  • Camellia japonica 'Dark of the Moon'
  • Camellia japonica 'Desire'
  • Camellia japonica 'Diddy's Pink Organdie'
  • Camellia japonica 'Dixie Knight'
  • Camellia japonica 'Doctor King'
  • Camellia japonica 'Doctor Tinsley'
  • Camellia japonica 'Drama Girl'
  • Camellia japonica 'Elegans'
  • Camellia japonica 'Elisabeth'
  • Camellia japonica 'Elizabeth Hawkins'
  • Camellia japonica 'Emperor of Russia'
  • Camellia japonica 'Eximia'
  • Camellia japonica 'Faustina'
  • Camellia japonica 'Flashlight'
  • Camellia japonica 'Fleur Dipater'
  • Camellia japonica 'Fred Sander'
  • Camellia japonica 'Gigantea'
  • Camellia japonica 'Giuditta Rosani'
  • Camellia japonica 'Guest of Honor'
  • Camellia japonica 'Guilio Nuccio'
  • Camellia japonica 'Hagoromo'
  • Camellia japonica 'Hanafuki'
  • Camellia japonica 'Hawaii'
  • Camellia japonica 'Hikarugenji'
  • Camellia japonica 'Imbricata'
  • Camellia japonica 'Italiana Vera'
  • Camellia japonica 'Japonica Variegata' (v)
  • Camellia japonica 'Joseph Pfingstl'
  • Camellia japonica 'Jovey Carlyon'
  • Camellia japonica 'Juno'
  • Camellia japonica 'Kentucky'
  • Camellia japonica 'King's Ransom'
  • Camellia japonica 'Konronkoku'
  • Camellia japonica 'Kramer's Supreme'
  • Camellia japonica 'Kumasaka'
  • Camellia japonica 'Lady McCulloch'
  • Camellia japonica 'Lady Vansittart'
  • Camellia japonica 'Lavinia Maggi'
  • Camellia japonica 'Little Man'
  • Camellia japonica 'Lovelight'
  • Camellia japonica 'Ludgvan Red'
  • Camellia japonica 'Madge Miller'
  • Camellia japonica 'Margaret Davis'
  • Camellia japonica 'Maroon and Gold'
  • Camellia japonica 'Masayoshi'
  • Camellia japonica 'Mermaid'
  • Camellia japonica 'Midnight'
  • Camellia japonica 'Midnight Magic'
  • Camellia japonica 'Midnight Serenade'
  • Camellia japonica 'Mikenjaku'
  • Camellia japonica 'Moshe Dayan'
  • Camellia japonica 'Mrs Bertha A. Harms'
  • Camellia japonica 'Mrs William Thompson'
  • Camellia japonica 'Nuccio's Cameo'
  • Camellia japonica 'Nuccio's Gem'
  • Camellia japonica 'Nuccio's Jewel'
  • Camellia japonica 'Nuccio's Pearl'
  • Camellia japonica 'Nuccio's Pink Lace'
  • Camellia japonica 'Optima'
  • Camellia japonica 'Pink Chiffon'
  • Camellia japonica 'Prince Murat'
  • Camellia japonica 'R.L. Wheeler'
  • Camellia japonica 'Red Red Rose'
  • Camellia japonica 'Roger Hall'
  • Camellia japonica 'Sabiniana'
  • Camellia japonica 'Saint André'
  • Camellia japonica 'San Dimas'
  • Camellia japonica 'Saturnia'
  • Camellia japonica 'Scentsation'
  • Camellia japonica 'Sea Foam'
  • Camellia japonica 'Shirobotan'
  • Camellia japonica 'Silver Anniversary'
  • Camellia japonica 'Silver Ruffles'
  • Camellia japonica 'Splendens Carlyon'
  • Camellia japonica subsp. rusticana 'Beni-arajishi'
  • Camellia japonica 'Sugar Babe'
  • Camellia japonica 'Tammia'
  • Camellia japonica 'The Mikado'
  • Camellia japonica 'Tiffany'
  • Camellia japonica 'Tom Thumb'
  • Camellia japonica 'Trewithen White'
  • Camellia japonica 'Tricolor'
  • Camellia japonica 'Ville de Nantes'
  • Camellia japonica 'Visconti Nova'
  • Camellia japonica 'Vittorio Emanuele II'
  • Camellia japonica 'Wheel of Fortune'
  • Camellia japonica 'White Swan'
  • Camellia japonica 'Wildfire'
  • Camellia japonica 'Yours Truly'
  • Camellia rosthorniana 'Elina' (PBR)
  • Camellia sasanqua 'Crimson King'
  • Camellia sasanqua 'Hiryu'
  • Camellia sasanqua 'Hugh Evans'
  • Camellia sasanqua 'Jean May'
  • Camellia sasanqua 'Maiden's Blush'
  • Camellia sasanqua 'Narumigata'
  • Camellia sasanqua 'Plantation Pink'
  • Camellia sasanqua 'Rainbow'
  • Camellia sasanqua 'Rosea'
  • Camellia sasanqua 'Versicolor'
  • Camellia sasanqua 'Winter's Snowman'
  • Camellia sinensis
  • Camellia × vernalis 'Yuletide'
  • Camellia × williamsii 'Angel Wings'
  • Camellia × williamsii 'Anticipation'
  • Camellia × williamsii 'Anticipation Variegated' (v)
  • Camellia × williamsii 'Bowen Bryant'
  • Camellia × williamsii 'Brigadoon'
  • Camellia × williamsii 'China Clay'
  • Camellia × williamsii 'Debbie'
  • Camellia × williamsii 'Debbie's Carnation'
  • Camellia × williamsii 'Donation'
  • Camellia × williamsii 'E.G. Waterhouse'
  • Camellia × williamsii 'E.T.R. Carlyon'
  • Camellia × williamsii 'Elegant Beauty'
  • Camellia × williamsii 'Elsie Jury'
  • Camellia × williamsii 'Francis Hanger'
  • Camellia × williamsii 'Gay Time'
  • Camellia × williamsii 'Golden Spangles' (v)
  • Camellia × williamsii 'Grand Jury'
  • Camellia × williamsii 'Gwavas'
  • Camellia × williamsii 'Julia Hamiter'
  • Camellia × williamsii 'Les Jury'
  • Camellia × williamsii 'Marjorie Waldegrave'
  • Camellia × williamsii 'Pink Wave'
  • Camellia × williamsii 'Ruby Wedding' (d)
  • Camellia × williamsii 'Saint Ewe'
  • Camellia × williamsii 'Señorita'
  • Camellia × williamsii 'Shocking Pink'
  • Camellia × williamsii 'The Duchess of Cornwall'
  • Camellia × williamsii 'Twinkle Star'
  • Camellia × williamsii 'Water Lily'
  • Camellia × williamsii 'Wilber Foss'
  • Camellia × williamsii 'William Carlyon'
  • Camellia 'Barbara Clark' (reticulata × saluenensis)
  • Camellia 'Black Lace'
  • Camellia 'Cornish Spring' (cuspidata × japonica)
  • Camellia 'Forty-niner' (japonica × reticulata)
  • Camellia 'Freedom Bell'
  • Camellia 'Hooker'
  • Camellia 'Leonard Messel' (reticulata × (× williamsii))
  • Camellia 'Nicky Crisp' (japonica × pitardii)
  • Camellia 'Snow Flurry'
  • Camellia 'Sparkling Burgundy'
  • Camellia 'Spring Festival' (cuspidata hybrid)
  • Camellia 'Swan Lake'
  • Camellia 'Tom Knudsen' (japonica × reticulata)
  • Camellia 'Tristrem Carlyon' (reticulata hybrid)
  • Camellia 'Winter's Charm'
  • Camellia 'Winter's Interlude'
  • Camellia 'Winter's Toughie'
  • Campanula alliariifolia
  • Campanula arvatica
  • Campanula carpatica 'Blaue Clips'
  • Campanula carpatica 'Blue Moonlight'
  • Campanula carpatica 'Chewton Joy'
  • Campanula carpatica f. alba
  • Campanula carpatica f. alba 'Weisse Clips'
  • Campanula carpatica var. turbinata 'Foerster'
  • Campanula carpatica var. turbinata 'Isabel'
  • Campanula carpatica var. turbinata 'Jewel'
  • Campanula cochlearifolia
  • Campanula cochlearifolia 'Elizabeth Oliver' (d)
  • Campanula cochlearifolia 'R.B. Loder' (d)
  • Campanula cochlearifolia var. alba 'White Baby' (Baby Series)
  • Campanula collina
  • Campanula garganica
  • Campanula garganica 'Dickson's Gold'
  • Campanula glomerata 'Caroline'
  • Campanula glomerata 'Emerald'
  • Campanula glomerata 'Superba'
  • Campanula glomerata var. alba
  • Campanula lactiflora
  • Campanula lactiflora 'Loddon Anna'
  • Campanula lactiflora 'Pouffe'
  • Campanula lactiflora 'Prichard's Variety'
  • Campanula lactiflora 'White Pouffe'
  • Campanula latifolia var. alba
  • Campanula latifolia var. macrantha
  • Campanula latiloba 'Highcliffe Variety'
  • Campanula latiloba 'Percy Piper'
  • Campanula persicifolia
  • Campanula persicifolia 'Chettle Charm'
  • Campanula persicifolia L. 'Wortham Belle' Blooms
  • Campanula persicifolia 'Takion Blue' (Takion Series)
  • Campanula persicifolia 'Takion White' (Takion Series)
  • Campanula persicifolia 'Telham Beauty' misapplied
  • Campanula persicifolia var. alba
  • Campanula portenschlagiana
  • Campanula portenschlagiana 'Catharina'
  • Campanula portenschlagiana 'Resholdt's Variety'
  • Campanula poscharskyana 'Stella'
  • Campanula pulla
  • Campanula pulla 'Alba'
  • Campanula punctata f. rubriflora
  • Campanula punctata f. rubriflora 'Cherry Bells'
  • Campanula punctata 'Wedding Bells'
  • Campanula raineri 'Nettleton Gold'
  • Campanula rotundifolia 'White Gem'
  • Campanula takesimana
  • Campanula takesimana 'Elizabeth'
  • Campanula × haylodgensis 'Plena' (d)
  • Campanula × pseudoraineri hort.
  • Campanula × wockei 'Puck'
  • Campanula 'Birch Hybrid'
  • Campanula 'Covadonga'
  • Campanula 'Hannah'
  • Campanula 'Kent Belle'
  • Campanula 'Pink Octopus' (PBR)
  • Campanula 'Sarastro'
  • Campanula 'Stansfieldii'
  • Campanula 'Summertime Blues' (PBR)
  • Campsis radicans
  • Campsis radicans f. flava
  • Campsis × tagliabuana Indian Summer = 'Kudian' (PBR)
  • Campsis × tagliabuana 'Takarazuka Yellow' (PBR) (Summer Jazz Series)
  • Campsis × tagliabuana 'Takarazuka Zujin' (PBR) (Summer Jazz Series)
  • Capsicum annuum 'Apache'
  • Capsicum annuum 'Basket of Fire'
  • Capsicum annuum 'Cheyenne'
  • Capsicum annuum 'Demon Red'
  • Capsicum annuum 'Etna'
  • Capsicum annuum 'Fresno'
  • Capsicum annuum 'Jericho'
  • Capsicum annuum 'Krakatoa'
  • Capsicum annuum 'Masquerade'
  • Capsicum annuum 'Medusa'
  • Capsicum annuum 'Numex Twilight'
  • Capsicum annuum 'Paper Lantern'
  • Capsicum annuum 'Razzamatazz'
  • Capsicum annuum var. annuum (Grossum Group) 'Bell Boy'
  • Capsicum annuum var. annuum (Grossum Group) 'Mohawk'
  • Capsicum annuum var. annuum (Grossum Group) 'Redskin'
  • Capsicum annuum var. annuum (Longum Group) 'Hot Thai'
  • Capsicum annuum var. annuum (Longum Group) jalapeño
  • Capsicum annuum var. annuum (Longum Group) 'Loco'
  • Capsicum annuum var. annuum 'Blondy'
  • Capsicum annuum var. annuum 'Prairie Fire'
  • Capsicum annuum var. annuum 'Purple Mavros'
  • Capsicum chinense 'Scotch Bonnet'
  • Cardiocrinum giganteum
  • Carex buchananii
  • Carex buchananii 'Green Twist'
  • Carex comans bronze-leaved
  • Carex comans 'Frosted Curls'
  • Carex dipsacea
  • Carex elata 'Aurea'
  • Carex flagellifera
  • Carex flagellifera 'Kiwi'
  • Carex grayi
  • Carex oshimensis 'Evergold' (v)
  • Carex secta
  • Carex tenuiculmis
  • Carex testacea
  • Carex testacea 'Prairie Fire'
  • Carex 'Amazon Mist'
  • Carex 'Ice Dance' (v)
  • Carex 'Silver Sceptre' (v)
  • Carlina acaulis subsp. simplex
  • Carpenteria californica
  • Carpenteria californica 'Bodnant'
  • Caryopteris × clandonensis Hint of Gold = 'Lisaura' (PBR)
  • Caryopteris × clandonensis Pink Perfection = 'Lisspin' (PBR)
  • Caryopteris × clandonensis Stephi = 'Lissteph' (PBR)
  • Caryopteris × clandonensis Sterling Silver = 'Lissilv' (PBR)
  • Caryopteris × clandonensis 'First Choice'
  • Caryopteris × clandonensis 'Gold Giant'
  • Caryopteris × clandonensis 'Heavenly Blue'
  • Caryopteris × clandonensis 'White Surprise' (PBR) (v)
  • Caryopteris × clandonensis 'Worcester Gold'
  • Catananche caerulea
  • Catananche caerulea 'Alba'
  • Catananche caerulea 'Amor Blue'
  • Catananche caerulea 'Major'
  • Ceanothus arboreus 'Trewithen Blue'
  • Ceanothus griseus var. horizontalis 'Yankee Point'
  • Ceanothus thyrsiflorus 'Mystery Blue'
  • Ceanothus thyrsiflorus var. repens
  • Ceanothus 'Autumnal Blue'
  • Ceanothus 'Blue Cushion'
  • Ceanothus 'Blue Mound'
  • Ceanothus 'Concha'
  • Ceanothus 'Dark Star'
  • Ceanothus 'Italian Skies'
  • Ceanothus 'Pershore Zanzibar' (PBR) (v)
  • Ceanothus 'Puget Blue'
  • Ceanothus 'Skylark'
  • Ceanothus 'Southmead'
  • Centaurea bella
  • Centaurea dealbata
  • Centaurea macrocephala
  • Centaurea montana
  • Centaurea montana 'Alba'
  • Centaurea montana 'Amethyst Dream' (PBR)
  • Centaurea montana 'Amethyst in Snow'
  • Centaurea montana 'Black Sprite'
  • Centaurea montana 'Gold Bullion'
  • Centaurea montana 'Lavender Mist'
  • Centaurea montana 'Parham'
  • Centaurea 'Caramia'
  • Centaurea 'John Coutts'
  • Centaurea 'Jordy'
  • Centaurea 'Silver Feather'
  • Centranthus ruber
  • Centranthus ruber 'Albus'
  • Centranthus ruber var. coccineus
  • Cephalaria alpina
  • Cephalaria gigantea
  • Ceratostigma griffithii
  • Ceratostigma plumbaginoides
  • Ceratostigma willmottianum
  • Ceratostigma willmottianum Forest Blue = 'Lice' (PBR)
  • Ceratostigma willmottianum Sapphire Ring = 'Lissbrill' (PBR)
  • Cercidiphyllum japonicum f. pendulum
  • Cercis canadensis Lavender Twist = 'Covey'
  • Cercis canadensis 'Cascading Hearts'
  • Cercis canadensis 'Ruby Falls' (PBR)
  • Chaenomeles speciosa 'Falconnet Charlet' (d)
  • Chaenomeles speciosa 'Geisha Girl' (d)
  • Chaenomeles speciosa 'Moerloosei'
  • Chaenomeles × superba 'Crimson and Gold'
  • Chaenomeles × superba 'Jet Trail'
  • Chaenomeles × superba 'Pink Lady'
  • Chaenomeles Madame Butterfly = 'Whitice'
  • Chaerophyllum hirsutum 'Roseum'
  • Chamaemelum nobile 'Treneague'
  • Chasmanthium latifolium
  • Cheilanthes lanosa
  • Cheilanthes tomentosa
  • Chelone obliqua
  • Choisya ternata
  • Choisya ternata Sundance = 'Lich'
  • Choisya × dewitteana Goldfingers = 'Limo' (PBR)
  • Choisya × dewitteana Snow Flurries = 'Lisflurry' (PBR)
  • Choisya × dewitteana White Dazzler = 'Londaz' (PBR)
  • Choisya × dewitteana 'Aztec Gold' (PBR)
  • Choisya × dewitteana 'Aztec Pearl'
  • Chrysanthemum 'Anastasia' (21c)
  • Chrysanthemum 'Bronze Elegance' (21b)
  • Chrysanthemum 'Clara Curtis' (21d)
  • Chrysanthemum 'Cottage Apricot' (21)
  • Chrysanthemum 'Duchess of Edinburgh' (21d)
  • Chrysanthemum 'Mary Stoker' (21d)
  • Chrysanthemum 'Mei-Kyo' (28b)
  • Chrysanthemum 'Nantyderry Sunshine' (28b)
  • Cichorium intybus f. album
  • Cichorium intybus 'Roseum'
  • Cirsium rivulare 'Atropurpureum'
  • Cirsium rivulare 'Trevor's Felley Find' (PBR)
  • Cirsium 'Mount Etna'
  • Cistus ladanifer 'Pat'
  • Cistus × argenteus 'Blushing Peggy Sammons'
  • Cistus × argenteus 'Silver Pink' ambig.
  • Cistus × cyprius
  • Cistus × cyprius var. ellipticus 'Elma'
  • Cistus × dansereaui 'Decumbens'
  • Cistus × hybridus
  • Cistus × pulverulentus 'Sunset'
  • Cistus × purpureus
  • Cistus × purpureus 'Alan Fradd'
  • Clematis alpina 'Pamela Jackman' (A)
  • Clematis armandi
  • Clematis armandi 'Enham Star' (Ar)
  • Clematis armandi 'Little White Charm' (Ar)
  • Clematis armandi 'Snowdrift' (Ar)
  • Clematis cirrhosa 'Jingle Bells' (C)
  • Clematis cirrhosa var. purpurascens 'Freckles' (C)
  • Clematis cirrhosa 'Wisley Cream' (C)
  • Clematis flammula
  • Clematis florida var. flore-pleno 'Plena' (d)
  • Clematis florida var. florida 'Sieboldiana' (d)
  • Clematis heracleifolia 'Cassandra' (H)
  • Clematis koreana Amber = 'Wit141205' (PBR) (A)
  • Clematis macropetala (d)
  • Clematis macropetala 'Lagoon' Jackman 1959 (A/d)
  • Clematis macropetala 'Wesselton' (A/d)
  • Clematis marmoraria
  • Clematis montana 'Alexander' (M)
  • Clematis montana Buch.-Ham. ex DC. var. rubens E.H. Wilson
  • Clematis montana var. grandiflora (M)
  • Clematis montana var. rubens 'Pink Perfection' (M)
  • Clematis sibirica
  • Clematis tangutica
  • Clematis tubulosa 'Wyevale' (H)
  • Clematis viticella 'Flore Pleno' (Vt/d)
  • Clematis 'Étoile Violette' (Vt)
  • Clematis × cartmanii Michiko = 'Evipo044' (PBR) (Fo)
  • Clematis × cartmanii 'Avalanche' (PBR) (Fo/m)
  • Clematis × cartmanii 'Joe' (Fo/m)
  • Clematis × durandii
  • Clematis × triternata 'Rubromarginata'
  • Clematis Abilene = 'Evipo027' (PBR) (EL)
  • Clematis Alaina = 'Evipo056' (PBR) (EL)
  • Clematis Angelique = 'Evipo017' (EL)
  • Clematis Arctic Queen = 'Evitwo' (PBR) (EL)
  • Clematis Bernadine = 'Evipo 061' (PBR) (EL)
  • Clematis Cézanne = 'Evipo023' (PBR) (EL)
  • Clematis Chantilly = 'Evipo021' (PBR) (EL)
  • Clematis Charmaine = 'Evipo022' (PBR) (EL)
  • Clematis Chelsea = 'Evipo100' (PBR)
  • Clematis Chevalier = 'Evipo040' (PBR) (EL)
  • Clematis Corinne = 'Evipo063' (PBR) (EL)
  • Clematis Diamantina = 'Evipo039' (PBR) (EL)
  • Clematis Diana's Delight = 'Evipo026' (PBR) (EL)
  • Clematis Edda = 'Evipo074' (PBR) (Boulevard Series) (EL)
  • Clematis Endellion = 'Evipo076' (PBR) (EL)
  • Clematis Filigree = 'Evipo029' (PBR) (EL)
  • Clematis Fleuri = 'Evipo042' (PBR) (Boulevard Series) (EL)
  • Clematis Forever Friends = 'Zofofri' (PBR) (LL)
  • Clematis Giant Star = 'Gistar' (PBR) (M)
  • Clematis Giselle = 'Evipo051' (PBR)
  • Clematis Harlow Carr = 'Evipo004' (PBR)
  • Clematis Hyde Hall = 'Evipo009' (PBR) (EL)
  • Clematis Ines = 'Evipo059' (PBR) (Boulevard Series)
  • Clematis Josephine = 'Evijohill' (PBR) (EL)
  • Clematis Kimiko = 'Evipo066' (PBR) (Boulevard Series) (Fo)
  • Clematis Kitty = 'Evipo097' (EL)
  • Clematis Manon = 'Evipo054' (PBR) (Boulevard Series) (EL)
  • Clematis Neva = 'Evipo050' (PBR) (Boulevard Series) (EL)
  • Clematis Ooh La La = 'Evipo041' (PBR) (Boulevard Series) (EL)
  • Clematis Parisienne = 'Evipo019' (PBR) (Boulevard Series) (EL)
  • Clematis Picardy = 'Evipo024' (PBR) (EL)
  • Clematis Princess Kate = 'Zoprika' (PBR) (T)
  • Clematis Rebecca = 'Evipo016' (PBR) (EL)
  • Clematis Rosemoor = 'Evipo002' (PBR) (EL)
  • Clematis Sacha = 'Evipo060' (EL)
  • Clematis Sally = 'Evipo077' (PBR) (EL)
  • Clematis Samaritan Jo = 'Evipo075'
  • Clematis Shimmer = 'Evipo028' (PBR) (LL)
  • Clematis Tekla = 'Evipo069' (PBR) (LL)
  • Clematis The Countess of Wessex = 'Evipo073' (EL)
  • Clematis Thumbelina = 'Evipo030' (PBR) (EL)
  • Clematis Volunteer = 'Evipo080' (PBR) (EL)
  • Clematis 'Alba Luxurians' (Vt)
  • Clematis 'Andromeda' (EL)
  • Clematis 'Apple Blossom' (Ar)
  • Clematis 'Arabella' (I)
  • Clematis 'Belle Nantaise' (EL)
  • Clematis 'Best Wishes'
  • Clematis 'Betty Corning' (Vt)
  • Clematis 'Bill MacKenzie' (Ta)
  • Clematis 'Black Prince' (Vt)
  • Clematis 'Black Tea' (LL)
  • Clematis 'Blekitny Aniol' (LL)
  • Clematis 'Blue Eclipse' (A)
  • Clematis 'Broughton Bride' (A)
  • Clematis 'Broughton Star' (M/d)
  • Clematis 'Comtesse de Bouchaud' (LL)
  • Clematis 'Congratulations' (EL)
  • Clematis 'Constance' (A)
  • Clematis 'Cragside' (A)
  • Clematis 'Daniel Deronda' (EL)
  • Clematis 'Doctor Ruppel' (EL)
  • Clematis 'Duchess of Edinburgh' (EL)
  • Clematis 'Early Sensation' (Fo/f)
  • Clematis 'Elizabeth' (M)
  • Clematis 'Elsa Späth' (EL)
  • Clematis 'Ernest Markham' (LL)
  • Clematis 'Fond Memories' (EL)
  • Clematis 'Fujimusume' (EL)
  • Clematis 'Fukuzono' (I)
  • Clematis 'General Sikorski' (EL)
  • Clematis 'Gillian Blades' (EL)
  • Clematis 'Hagley Hybrid' (LL)
  • Clematis 'Henryi' (EL)
  • Clematis 'Honora' (LL)
  • Clematis 'Jan Lindmark' (A/d)
  • Clematis 'John Warren' (EL)
  • Clematis 'Lady Caroline Nevill' (EL)
  • Clematis 'Lunar Lass' (Fo/f)
  • Clematis 'Madame Édouard André' (LL)
  • Clematis 'Madame Julia Correvon' (Vt)
  • Clematis 'Marjorie' (M/d)
  • Clematis 'Markham's Pink' (A/d)
  • Clematis 'Mayleen' (M)
  • Clematis 'Miss Bateman' (EL)
  • Clematis 'Nelly Moser' (EL)
  • Clematis 'Niobe' (EL)
  • Clematis 'Pangbourne Pink' (I)
  • Clematis 'Pink Flamingo' (A)
  • Clematis 'Polish Spirit' (LL)
  • Clematis 'Purpurea Plena Elegans' (Vt/d)
  • Clematis 'Romantika' (LL)
  • Clematis 'Rouge Cardinal' (LL)
  • Clematis 'Royal Velours' (Vt)
  • Clematis 'Sir Edward Elgar' (A)
  • Clematis 'The President' (EL)
  • Clematis 'Toltae' (PBR) (EL)
  • Clematis 'Ville de Lyon' (LL)
  • Clematis 'Willy' (A)
  • Clianthus puniceus 'Roseus'
  • Convallaria majalis
  • Convallaria majalis 'Albostriata' (v)
  • Convolvulus cneorum
  • Coprosma repens 'Pina Colada' (PBR) (v)
  • Coprosma repens 'Tequila Sunrise'
  • Coprosma 'Lemon and Lime' (PBR) (v)
  • Cordyline australis
  • Cordyline australis 'Torbay Dazzler' (v)
  • Cordyline 'Cherry Sensation' (v)
  • Cordyline 'Red Star'
  • Cordyline 'Southern Splendour' (v)
  • Coreopsis grandiflora Flying Saucers = 'Walcoreop' (PBR)
  • Coreopsis grandiflora 'Early Sunrise'
  • Coreopsis grandiflora 'Sunfire'
  • Coreopsis grandiflora 'Sunray'
  • Coreopsis lanceolata 'Goldteppich'
  • Coreopsis rosea 'American Dream'
  • Coreopsis verticillata 'Grandiflora'
  • Coreopsis verticillata 'Limerock Dream' (PBR)
  • Coreopsis verticillata 'Moonbeam'
  • Coreopsis verticillata 'Ruby Red'
  • Coreopsis verticillata 'Zagreb'
  • Coreopsis 'Cosmic Eye' (Big Bang Series)
  • Coreopsis 'Cranberry Ice'
  • Coreopsis 'Daybreak' (Li'l Bang Series)
  • Coreopsis 'Enchanted Eve' (PBR) (Li'l Bang Series)
  • Coreopsis 'Full Moon' (PBR) (Big Bang Series)
  • Coreopsis 'Galaxy' (Big Bang Series)
  • Coreopsis 'Limerock Passion' (PBR)
  • Coreopsis 'Limerock Ruby' (PBR)
  • Coreopsis 'Mercury Rising' (PBR) (Big Bang Series)
  • Coreopsis 'Red Elf' (PBR) (Li'l Bang Series)
  • Coreopsis 'Redshift'
  • Coreopsis 'Schnittgold'
  • Coreopsis 'Sienna Sunset'
  • Coreopsis 'Snowberry'
  • Coreopsis 'Sonnenkind' (red-blotched)
  • Coreopsis 'Star Cluster' (Big Bang Series)
  • Coreopsis 'Starlight' (Li'l Bang Series)
  • Coreopsis 'Sterntaler'
  • Cornus alba Baton Rouge = 'Minbat' (PBR)
  • Cornus alba 'Aurea'
  • Cornus alba 'Elegantissima' (v)
  • Cornus alba 'Gouchaultii' (v)
  • Cornus alba 'Kesselringii'
  • Cornus alba 'Siberian Pearls'
  • Cornus alba 'Sibirica'
  • Cornus alba 'Sibirica Variegata' (v)
  • Cornus alba 'Spaethii' (v)
  • Cornus canadensis
  • Cornus controversa 'Variegata' (v)
  • Cornus florida Cherokee Brave = 'Comco No 1'
  • Cornus florida 'Cherokee Chief'
  • Cornus florida 'Daybreak' (v)
  • Cornus florida 'Rainbow' (v)
  • Cornus florida 'Sunset' (v)
  • Cornus kousa 'Beni-fuji'
  • Cornus kousa 'Cappuccino'
  • Cornus kousa 'Milky Way Select'
  • Cornus kousa 'Miss Satomi'
  • Cornus kousa var. chinensis
  • Cornus kousa var. chinensis 'China Girl'
  • Cornus sanguinea 'Anny's Winter Orange'
  • Cornus sanguinea 'Magic Flame'
  • Cornus sanguinea 'Midwinter Fire'
  • Cornus sericea Kelsey's Gold = 'Rosco'
  • Cornus sericea 'Bud's Yellow'
  • Cornus sericea 'Cardinal'
  • Cornus sericea 'Flaviramea'
  • Cornus sericea 'Hedgerows Gold' (v)
  • Cornus × rutgersensis Celestial = 'Rutdan' (Stellar Series)
  • Cornus × rutgersensis Stellar Pink = 'Rutgan' (Stellar Series)
  • Cornus 'Porlock'
  • Cortaderia selloana 'Aureolineata' (v)
  • Cortaderia selloana 'Pumila'
  • Cortaderia selloana 'Silver Fountain' (v)
  • Cortaderia selloana 'Splendid Star' (PBR) (v)
  • Corydalis cashmeriana
  • Corydalis curviflora subsp. rosthornii 'Blue Heron'
  • Corydalis elata
  • Corydalis flexuosa 'China Blue'
  • Corydalis flexuosa 'Purple Leaf'
  • Corydalis paczoskii
  • Corydalis solida
  • Corydalis solida 'Firecracker'
  • Corydalis solida subsp. solida 'George Baker'
  • Corydalis 'Canary Feathers' (PBR)
  • Corydalis 'Tory MP'
  • Corylopsis sinensis var. sinensis 'Spring Purple'
  • Corylus avellana 'Contorta'
  • Corynabutilon × suntense
  • Cosmos atrosanguineus Chocamocha = 'Thomocha' (PBR)
  • Cotinus coggygria Golden Spirit = 'Ancot' (PBR)
  • Cotinus coggygria 'Lilla' (PBR)
  • Cotinus coggygria 'Royal Purple'
  • Cotinus 'Candy Floss'
  • Cotinus 'Flame'
  • Cotinus 'Grace'
  • Cotinus 'Ruby Glow'
  • Cotoneaster atropurpureus 'Variegatus' (v)
  • Cotoneaster horizontalis
  • Cotoneaster lacteus
  • Cotoneaster procumbens 'Queen of Carpets'
  • Cotoneaster purpurascens
  • Cotoneaster × suecicus 'Coral Beauty'
  • Cotoneaster × suecicus 'Juliette' (v)
  • Cotoneaster 'Cornubia'
  • Cotoneaster 'Rothschildianus'
  • Crambe cordifolia
  • Crambe maritima
  • Crinodendron hookerianum
  • Crinum × powellii
  • Crinum × powellii 'Album'
  • Crocosmia masoniorum
  • Crocosmia pottsii
  • Crocosmia pottsii 'Princess'
  • Crocosmia × crocosmiiflora (Lemoine) N.E. Br. 'Citronella' J.E. Fitt
  • Crocosmia × crocosmiiflora (Lemoine) N.E. Br. 'George Davison' Davison
  • Crocosmia × crocosmiiflora 'Babylon'
  • Crocosmia × crocosmiiflora 'Buttercup'
  • Crocosmia × crocosmiiflora 'Carmin Brillant'
  • Crocosmia × crocosmiiflora 'Columbus'
  • Crocosmia × crocosmiiflora 'Constance'
  • Crocosmia × crocosmiiflora 'Emily McKenzie'
  • Crocosmia × crocosmiiflora 'Fireglow' (PBR)
  • Crocosmia × crocosmiiflora 'Honey Angels'
  • Crocosmia × crocosmiiflora 'Lady Wilson'
  • Crocosmia × crocosmiiflora 'Météore'
  • Crocosmia × crocosmiiflora 'Norwich Canary'
  • Crocosmia × crocosmiiflora 'Red King'
  • Crocosmia × crocosmiiflora 'Star of the East'
  • Crocosmia × crocosmiiflora 'Zeal Tan'
  • Crocosmia × crocosmioides 'Castle Ward Late'
  • Crocosmia Bright Eyes = 'Walbreyes' (PBR)
  • Crocosmia Walberton Yellow = 'Walcroy' (PBR)
  • Crocosmia 'Bressingham Blaze'
  • Crocosmia 'Comet' Knutty
  • Crocosmia 'Emberglow'
  • Crocosmia 'Fire King' Krelage
  • Crocosmia 'Firebird'
  • Crocosmia 'Firefly'
  • Crocosmia 'Karin'
  • Crocosmia 'Lady Jane'
  • Crocosmia 'Lucifer'
  • Crocosmia 'Ministar'
  • Crocosmia 'Miss Scarlet'
  • Crocosmia 'Mistral'
  • Crocosmia 'Orange Devil'
  • Crocosmia 'Prince of Orange'
  • Crocosmia 'Queen Alexandria'
  • Crocosmia 'Severn Sunrise'
  • Crocus ancyrensis 'Golden Bunch'
  • Crocus boryi
  • Crocus cartwrightianus
  • Crocus chrysanthus 'Cream Beauty'
  • Crocus etruscus 'Zwanenburg'
  • Crocus goulimyi
  • Crocus hadriaticus
  • Crocus longiflorus
  • Crocus niveus
  • Crocus sieberi subsp. atticus 'Firefly'
  • Crocus speciosus 'Aitchisonii'
  • Crocus speciosus 'Artabir'
  • Crocus speciosus 'Cassiope'
  • Crocus speciosus 'Conqueror'
  • Crocus speciosus 'Oxonian'
  • Crocus sublimis 'Tricolor'
  • Crocus tommasinianus 'Barr's Purple'
  • Crocus tommasinianus 'Whitewell Purple'
  • Crocus tournefortii
  • Crocus 'Ard Schenk'
  • Crocus blue-flowered
  • Crocus 'Prins Claus'
  • Crocus 'Romance'
  • Crocus 'Ruby Giant'
  • Cucumis melo 'Mini Yellow'
  • Cucumis melo 'Pepito'
  • Cucumis sativus 'Burpless Tasty Green'
  • Cucumis sativus 'Cucino'
  • Cucumis sativus 'Ferrispot'
  • Cucumis sativus 'La Diva'
  • Cucurbita maxima 'Delica'
  • Cucurbita pepo 'Ambassador'
  • Cucurbita pepo 'Geode'
  • Cucurbita pepo 'Ghost Rider'
  • Cucurbita pepo 'Greenbush'
  • Cucurbita pepo 'Ibis'
  • Cucurbita pepo 'Long Green Bush'
  • Cucurbita pepo 'Tiger Cross'
  • Cyclamen africanum
  • Cyclamen alpinum
  • Cyclamen balearicum
  • Cyclamen cilicium
  • Cyclamen cilicium f. album
  • Cyclamen coum
  • Cyclamen coum subsp. coum f. coum (Pewter Group) 'Maurice Dryden'
  • Cyclamen coum subsp. coum f. coum Silver Group
  • Cyclamen cyprium
  • Cyclamen graecum
  • Cyclamen graecum subsp. graecum f. album
  • Cyclamen hederifolium
  • Cyclamen hederifolium Silver-leaved Group
  • Cyclamen hederifolium var. hederifolium f. hederifolium 'Ruby Glow'
  • Cyclamen intaminatum
  • Cyclamen libanoticum
  • Cyclamen mirabile
  • Cyclamen persicum
  • Cyclamen pseudibericum
  • Cyclamen repandum
  • Cyclamen rohlfsianum
  • Cynara cardunculus
  • Cynara cardunculus Scolymus Group
  • Cyrtomium falcatum
  • Cyrtomium falcatum 'Rochfordianum'
  • Cyrtomium fortunei
  • Cyrtomium fortunei var. clivicola
  • Cyrtomium macrophyllum
  • Cytisus × boskoopii 'Boskoop Ruby'
  • Cytisus × kewensis
  • Cytisus × praecox
  • Cytisus × praecox 'Albus'
  • Cytisus 'Golden Cascade'
  • Cytisus 'Goldfinch'
  • Dahlia merckii
  • Dahlia Dreamy Kiss (Dreamy Series) (P)
  • Dahlia Dreamy Nights (Dreamy Series) (Misc)
  • Dahlia Mystic Spirit = 'Hamspirit' (PBR) (Sin)
  • Dahlia 'Bishop of Auckland' (PBR) (Misc)
  • Dahlia 'Bishop of Canterbury' (PBR) (P)
  • Dahlia 'Bishop of Leicester' (Misc)
  • Dahlia 'Bishop of Llandaff' (P)
  • Dahlia 'Bishop of Oxford' (Misc)
  • Dahlia 'Bishop of York' (Misc)
  • Dahlia 'Cheerio' (S-c)
  • Dahlia 'Clarion' (S-c)
  • Dahlia 'Dark Side of the Sun' (PBR) (Sin)
  • Dahlia 'David Howard' (D)
  • Dahlia 'Double Dream Fantasy' (Dreamy Series) (Misc)
  • Dahlia 'Ella Britton' (D)
  • Dahlia 'Eye Candy' (Sin)
  • Dahlia 'Fascination' (P)
  • Dahlia 'Gallery Art Deco' (PBR) (Gallery Series) (D)
  • Dahlia 'Gallery Art Nouveau' (PBR) (Gallery Series) (D)
  • Dahlia 'Gallery Bellini' (PBR) (Gallery Series) (D)
  • Dahlia 'Gallery Pinto' (PBR) (Gallery Series) (D)
  • Dahlia 'Gallery Rivera' (PBR) (Gallery Series) (D)
  • Dahlia 'Gallery Valentin' (PBR) (Gallery Series) (D)
  • Dahlia 'Gerrie Hoek' (WL)
  • Dahlia 'Kaga-komachi' (D)
  • Dahlia 'Karma Choc' (PBR) (D)
  • Dahlia 'Knockout' (PBR) (Sin)
  • Dahlia 'Madame Simone Stappers' (P)
  • Dahlia 'Melody Allegro' (PBR) (D)
  • Dahlia 'Melody Lizza' (PBR) (D)
  • Dahlia 'Milk Shake' (D)
  • Dahlia 'Moonfire' (Sin)
  • Dahlia 'Mystic Enchantment' (PBR) (Sin)
  • Dahlia 'Mystic Wonder' (Sin)
  • Dahlia 'Park Princess' (C/DwB)
  • Dahlia 'Piper's Pink' (S-c/DwB)
  • Dahlia 'Radjah' (Pom)
  • Dahlia 'Roxy' (Sin/DwB)
  • Dahlia 'Sarah' (S-c)
  • Dahlia 'Tally Ho' (Sin)
  • Dahlia 'Twyning's After Eight' (Sin)
  • Dahlia 'Waterlily' (Sin)
  • Dahlia 'Zone Ten' (PBR) (Sin/DwB)
  • Daphne bholua 'Jacqueline Postill'
  • Daphne odora
  • Daphne odora Rebecca = 'Hewreb' (v)
  • Daphne odora 'Aureomarginata' (v)
  • Daphne odora 'Walberton' (v)
  • Daphne pontica
  • Daphne × transatlantica Eternal Fragrance = 'Blafra' (PBR)
  • Daphne × transatlantica Pink Fragrance = 'Blapink' (PBR)
  • Daphne Perfume Princess = 'Dapjur01'
  • Darmera peltata
  • Daucus carota 'Mokum'
  • Davidia involucrata
  • Decumaria sinensis
  • Delosperma cooperi
  • Delosperma cooperi Jewel of Desert Rosequartz = '12Rosk1' (PBR) (Jewel of Desert Series)
  • Delosperma cooperi 'Jewel of Desert Garnet' (PBR) (Jewel of Desert Series)
  • Delosperma cooperi 'Jewel of Desert Moon Stone' (PBR) (Jewel of Desert Series)
  • Delosperma cooperi 'Jewel of Desert Peridott' (PBR) (Jewel of Desert Series)
  • Delosperma cooperi 'Jewel of Desert Topaz' (PBR) (Jewel of Desert Series)
  • Delosperma dyeri Red Mountain = 'Psdold'
  • Delosperma 'Beaufort West'
  • Delphinium elatum 'Double Innocence' (New Millennium Series) (d)
  • Delphinium elatum 'Morning Lights' (New Millennium Series)
  • Delphinium grandiflorum 'Blue Butterfly'
  • Delphinium grandiflorum 'Summer Nights' (Summer Series)
  • Delphinium grandiflorum 'White Butterfly'
  • Delphinium Astolat Group
  • Delphinium Black Knight Group
  • Delphinium 'Black-eyed Angels' (New Millennium Series)
  • Delphinium Blue Bird Group
  • Delphinium 'Blue Nile'
  • Delphinium 'Bolero'
  • Delphinium Cameliard Group
  • Delphinium 'Cha Cha'
  • Delphinium 'Cherub'
  • Delphinium 'Clifford Sky'
  • Delphinium 'Crystal Delight' (Highlander Series) (d)
  • Delphinium 'Faust'
  • Delphinium 'Fenella'
  • Delphinium 'Flamenco'
  • Delphinium Galahad Group
  • Delphinium 'Green Twist' (New Millennium Series)
  • Delphinium 'Guardian Blue' (Guardian Series)
  • Delphinium 'Guardian Lavender' (Guardian Series)
  • Delphinium 'Guardian White' (Guardian Series)
  • Delphinium 'Jill Curley'
  • Delphinium 'Langdon's Royal Flush'
  • Delphinium 'Magic Fountains Lavender' (Magic Fountains Series)
  • Delphinium 'Magic Fountains Lilac Rose' (Magic Fountains Series)
  • Delphinium 'Magic Fountains Pure White' (Magic Fountains Series)
  • Delphinium 'Misty Mauves' (New Millennium Series) (d)
  • Delphinium 'Pagan Purples' (New Millennium Series) (d)
  • Delphinium 'Rose Butterfly' (d)
  • Delphinium 'Spindrift'
  • Delphinium 'Strawberry Fair'
  • Delphinium 'Sungleam'
  • Delphinium 'Sweet Sensation' (PBR) (Highlander Series) (d)
  • Delphinium 'Sweetheart'
  • Deschampsia cespitosa 'Bronzeschleier'
  • Deschampsia cespitosa 'Goldschleier'
  • Deschampsia cespitosa 'Goldtau'
  • Deschampsia flexuosa
  • Deschampsia flexuosa 'Tatra Gold'
  • Deutzia × hybrida 'Mont Rose'
  • Deutzia × hybrida 'Strawberry Fields'
  • Deutzia × rosea
  • Deutzia 'Rosea Plena' (d)
  • Dianella caerulea Cassa Blue = 'Dbb03' (PBR)
  • Dianthus anatolicus
  • Dianthus deltoides 'Leuchtfunk' (p)
  • Dianthus pavonius
  • Dianthus (Allwoodii Group) Cherry Daiquiri = 'Wp15 Pie42' (PBR) (Cocktails Series) (p)
  • Dianthus (Allwoodii Group) Shirley Temple = 'Wp15 Pie44' (PBR) (Cocktails Series) (p)
  • Dianthus (Allwoodii Group) Tequila Sunrise = 'Wp15 Pie45' (PBR) (Cocktails Series) (p)
  • Dianthus (Allwoodii Group) 'Doris' pre-1954 (p)
  • Dianthus Coconut Sundae = 'Wp 05 Yves' (PBR) (Scent First Series) (p)
  • Dianthus Cosmopolitan = 'Wp15 Pie43' (PBR) (p)
  • Dianthus Cracker = 'Wp10 Sab06' (PBR) (Early Bird Series) (p)
  • Dianthus Diantica White with Eye = 'Kledg11116' (pt)
  • Dianthus Fizzy = 'Wp08 Ver03' (PBR) (Early Bird Series) (p)
  • Dianthus Lady in Red = 'Wp04 Xanthe' (PBR) (p)
  • Dianthus Lily the Pink = 'Wp05 Idare' (PBR) (p)
  • Dianthus Memories = 'WP11 Gwe04' (PBR) (Scent First Series) (p)
  • Dianthus Mendlesham Minx = 'Russmin' (PBR) (p)
  • Dianthus Mojito = 'Wp15 Pie41' (PBR) (p)
  • Dianthus Passion = 'Wp Passion' (PBR) (Scent First Series) (p)
  • Dianthus Pinball Wizard = 'Wp15mow08' (p)
  • Dianthus Pink Kisses = 'Kledg12163' (PBR) (pt)
  • Dianthus Rebekah = 'Wp09 Mar05' (PBR) (Early Bird Series) (p)
  • Dianthus Romance = 'Wp09 Wen04' (PBR) (Scent First Series) (p)
  • Dianthus Rosebud = 'Wp08 Ros03' (PBR) (Early Bird Series) (p)
  • Dianthus Silver Star = 'Wp10 Hel01' (PBR) (p)
  • Dianthus Slap 'n' Tickle = 'Wp 05 Pp 22' (PBR) (Scent First Series) (p)
  • Dianthus Sugar Plum = 'Wp08 Ian04' (PBR) (Scent First Series) (p)
  • Dianthus Tickled Pink = 'Devon Pp 11' (PBR) (Scent First Series) (p)
  • Dianthus 'Annette' (p)
  • Dianthus 'Berlin Snow' (p)
  • Dianthus 'Betty Morton' (p)
  • Dianthus 'Brilliant Star' (p)
  • Dianthus 'Carmine Letitia Wyatt' (PBR) (p)
  • Dianthus 'Coral Reef' (PBR) (Scent First Series) (p)
  • Dianthus 'Corona Iceberry Magic' (p,a)
  • Dianthus 'Cranmere Pool' (p)
  • Dianthus 'Dainty Dame' (p)
  • Dianthus 'Devon Arctic Star' (Early Bird Series) (p)
  • Dianthus 'Devon Dove' (PBR) (p)
  • Dianthus 'Devon Flavia' (PBR) (Scent First Series) (p)
  • Dianthus 'Devon Wizard' (p)
  • Dianthus 'Devon Yolande' (PBR) (Scent First Series) (p)
  • Dianthus 'Dora' (p)
  • Dianthus 'Evening Star' (p)
  • Dianthus 'Firestar' (p)
  • Dianthus 'Fusilier' (p)
  • Dianthus 'Gran's Favourite' (p)
  • Dianthus 'Hidcote' (p)
  • Dianthus 'Houndspool Cheryl' (p)
  • Dianthus 'India Star' (PBR) (p)
  • Dianthus 'La Bourboule' (p)
  • Dianthus 'Laced Monarch' (p)
  • Dianthus 'Letitia Wyatt' (p)
  • Dianthus 'Little Jock' (p)
  • Dianthus 'Monica Wyatt' (p)
  • Dianthus 'Moulin Rouge' (p)
  • Dianthus 'Mrs Sinkins' (p)
  • Dianthus 'Neon Star' (PBR) (p)
  • Dianthus 'Night Star' (p)
  • Dianthus 'Pike's Pink' (p)
  • Dianthus 'Queen of Henri' (p)
  • Dianthus 'Red Star' (PBR) (p)
  • Dianthus 'Starlette' (PBR) (Star Double Series) (p)
  • Dianthus 'Starry Eyes' (p)
  • Dianthus 'Warden Hybrid' (p)
  • Dianthus 'Wessex' (pf)
  • Dianthus 'Whatfield Cancan' (p)
  • Dianthus 'Whatfield Joy' (p)
  • Dianthus 'Whatfield Magenta' (p)
  • Diascia barberae 'Blackthorn Apricot'
  • Diascia barberae 'Ruby Field'
  • Diascia vigilis
  • Diascia Coral Belle = 'Hecbel' (PBR)
  • Diascia Ice Cracker = 'Hecrack'
  • Diascia 'Aurora Apricot' (Towers of Flowers Series)
  • Diascia 'Hopleys'
  • Diascia 'Joyce's Choice'
  • Diascia 'Lilac Belle'
  • Diascia 'Salmon Supreme'
  • Diascia 'Twinkle'
  • Dicentra cucullaria
  • Dicentra formosa
  • Dicentra formosa 'Langtrees'
  • Dicentra formosa 'Spring Magic'
  • Dicentra 'Aurora'
  • Dicentra 'Bountiful'
  • Dicentra 'King of Hearts'
  • Dicentra 'Luxuriant'
  • Dicentra 'Pearl Drops'
  • Dicksonia antarctica
  • Dictamnus albus
  • Dictamnus albus var. purpureus
  • Dierama dracomontanum
  • Dierama igneum
  • Dierama pulcherrimum
  • Digitalis ferruginea
  • Digitalis grandiflora
  • Digitalis lanata
  • Digitalis lutea
  • Digitalis purpurea 'Cream Carousel' (Carousel Series)
  • Digitalis purpurea 'Dalmatian Crème' (Dalmatian Series)
  • Digitalis purpurea 'Dalmatian Rose' (Dalmatian Series)
  • Digitalis purpurea Excelsior Group
  • Digitalis purpurea f. albiflora
  • Digitalis purpurea Giant Spotted Group
  • Digitalis purpurea 'Lavender Carousel' (Carousel Series)
  • Digitalis purpurea 'Orchid Carousel' (Carousel Series)
  • Digitalis purpurea 'Pam's Choice'
  • Digitalis purpurea 'Purple Carousel' (Carousel Series)
  • Digitalis purpurea 'Serendipity'
  • Digitalis purpurea 'Snow Thimble'
  • Digitalis purpurea subsp. heywoodii 'Silver Fox'
  • Digitalis purpurea 'Sutton's Apricot'
  • Digitalis purpurea 'White Carousel' (Carousel Series)
  • Digitalis × mertonensis
  • Digitalis × valinii Illumination Ruby Slippers = 'Tmdg1204' (PBR) (Illumination Series)
  • Digitalis × valinii 'Harkstead Flame' (PBR) (Illumination Series)
  • Digitalis Goldcrest = 'Waldigone' (PBR)
  • Digitalis 'Albino'
  • Disporopsis pernyi
  • Disporum longistylum 'Night Heron'
  • Disporum sessile 'Variegatum' (v)
  • Disporum uniflorum
  • Dodecatheon clevelandii subsp. patulum
  • Dodecatheon jeffreyi 'Rotlicht'
  • Dodecatheon meadia f. album
  • Dodecatheon pulchellum
  • Doodia media
  • Doronicum orientale 'Leonardo'
  • Doronicum orientale 'Magnificum'
  • Doronicum 'Finesse'
  • Draba aizoides
  • Dracunculus vulgaris
  • Drosanthemum hispidum
  • Dryas octopetala
  • Dryopteris affinis
  • Dryopteris affinis 'Crispa Gracilis'
  • Dryopteris affinis Crispa Group
  • Dryopteris affinis 'Cristata'
  • Dryopteris affinis 'Pinderi'
  • Dryopteris atrata (Wall. ex Kunze) Ching
  • Dryopteris championii
  • Dryopteris clintoniana
  • Dryopteris crassirhizoma
  • Dryopteris cycadina
  • Dryopteris dilatata
  • Dryopteris dilatata 'Crispa Whiteside'
  • Dryopteris dilatata 'Jimmy Dyce'
  • Dryopteris dilatata 'Lepidota Crispa'
  • Dryopteris erythrosora
  • Dryopteris erythrosora 'Brilliance'
  • Dryopteris erythrosora var. koidzumiana
  • Dryopteris erythrosora var. prolifica
  • Dryopteris filix-mas
  • Dryopteris filix-mas 'Barnesii'
  • Dryopteris filix-mas 'Crispa'
  • Dryopteris filix-mas 'Crispa Cristata'
  • Dryopteris filix-mas 'Furcans'
  • Dryopteris filix-mas 'Linearis'
  • Dryopteris filix-mas 'Linearis Polydactyla'
  • Dryopteris goldieana
  • Dryopteris lepidopoda
  • Dryopteris ludoviciana
  • Dryopteris marginalis
  • Dryopteris pulcherrima
  • Dryopteris sieboldii
  • Dryopteris submontana
  • Dryopteris tokyoensis
  • Dryopteris wallichiana
  • Echinacea pallida
  • Echinacea paradoxa
  • Echinacea purpurea
  • Echinacea purpurea PowWow Wild Berry = 'Pas702917' (PBR) (PowWow Series)
  • Echinacea purpurea 'Alba'
  • Echinacea purpurea 'Baby Swan Pink'
  • Echinacea purpurea 'Baby Swan White'
  • Echinacea purpurea Bressingham hybrids
  • Echinacea purpurea 'Fatal Attraction' (PBR)
  • Echinacea purpurea 'Green Jewel' (PBR)
  • Echinacea purpurea 'Happy Star'
  • Echinacea purpurea 'Leuchtstern'
  • Echinacea purpurea 'Magnus'
  • Echinacea purpurea 'Magnus Superior'
  • Echinacea purpurea 'Pica Bella'
  • Echinacea purpurea 'Rubinstern'
  • Echinacea purpurea 'Ruby Giant'
  • Echinacea purpurea 'Sensation Pink' (PBR)
  • Echinacea purpurea 'The King'
  • Echinacea purpurea 'White Swan'
  • Echinacea Golden Skipper = 'Echgol243' (PBR) (Butterfly Series)
  • Echinacea Mooodz Awake = 'Hilmoooawak' (Mooodz Series)
  • Echinacea Mooodz Shiny = 'Hilmooshin' (Mooodz Series)
  • Echinacea Orange Skipper = 'Echor273' (PBR) (Butterfly Series)
  • Echinacea 'Aloha' (PBR)
  • Echinacea 'Amazing Dream' (PBR)
  • Echinacea 'Fourth of July' (PBR)
  • Echinacea 'Green Envy' (PBR)
  • Echinacea 'Hot Lava' (PBR)
  • Echinacea 'Meteor Red' (PBR) (Meteor Series) (d)
  • Echinacea 'Summer Cloud'
  • Echinacea 'White Meditation' (PBR)
  • Echinops bannaticus 'Blue Globe'
  • Echinops bannaticus 'Star Frost'
  • Echinops bannaticus 'Taplow Blue'
  • Echinops ritro L.
  • Echinops ritro 'Veitch's Blue'
  • Echinops sphaerocephalus 'Arctic Glow'
  • Echinops tjanschanicus
  • Echium amoenum
  • Ectotropis seanii-hoganii
  • Edgeworthia chrysantha
  • Elaeagnus pungens 'Maculata' (v)
  • Elaeagnus × submacrophylla 'Viveleg' (PBR) (v)
  • Elaeagnus 'Quicksilver'
  • Elymus magellanicus
  • Elymus magellanicus 'Blue Sword'
  • Enkianthus campanulatus
  • Epilobium canum 'Dublin' (Z)
  • Epimedium alpinum
  • Epimedium × perralchicum 'Fröhnleiten'
  • Epimedium × rubrum
  • Epimedium × versicolor 'Sulphureum'
  • Epimedium × warleyense
  • Epimedium × warleyense 'Orangekönigin'
  • Epimedium × youngianum 'Niveum'
  • Epimedium × youngianum 'Roseum'
  • Epimedium 'Akebono'
  • Eragrostis curvula 'Totnes Burgundy'
  • Eranthis hyemalis
  • Eranthis hyemalis Cilicica Group
  • Eremurus 'Line Dance'
  • Eremurus 'Romance'
  • Erica arborea 'Estrella Gold'
  • Erica arborea var. alpina f. aureifolia 'Albert's Gold'
  • Erica australis 'Riverslea'
  • Erica lusitanica 'Sheffield Park'
  • Erica × veitchii 'Exeter'
  • Erigeron chrysopsidis 'Grand Ridge'
  • Erigeron glaucus 'Sea Breeze'
  • Erigeron karvinskianus
  • Erigeron karvinskianus 'Kew Profusion'
  • Erigeron simplex
  • Erigeron 'Adria'
  • Erigeron 'Blue Beauty'
  • Erigeron 'Dunkelste Aller'
  • Erigeron 'Rosa Juwel'
  • Erigeron 'Schneewittchen'
  • Erigeron 'Wayne Roderick'
  • Erodium absinthoides
  • Erodium manescavii
  • Erodium pelargoniiflorum
  • Erodium reichardii
  • Erodium reichardii 'Album'
  • Erodium × variabile 'Flore Pleno' (d)
  • Erodium × variabile 'Joe Elliott'
  • Erodium × variabile 'William Bishop'
  • Eryngium agavifolium
  • Eryngium bourgatii
  • Eryngium bourgatii Graham Stuart Thomas's selection
  • Eryngium bourgatii 'Picos Blue' (PBR)
  • Eryngium giganteum
  • Eryngium planum
  • Eryngium planum 'Blaukappe'
  • Eryngium planum 'Flüela'
  • Eryngium planum 'Seven Seas'
  • Eryngium tricuspidatum
  • Eryngium variifolium
  • Eryngium × tripartitum
  • Eryngium × zabelii 'Big Blue'
  • Eryngium × zabelii 'Violetta'
  • Eryngium 'Green Jade'
  • Erysimum Rysi Copper
  • Erysimum Walberton's Fragrant Star = 'Walfrastar' (PBR) (v)
  • Erysimum Walberton's Fragrant Sunshine = 'Walfrasun'
  • Erysimum 'Apricot Twist'
  • Erysimum 'Bowles's Mauve'
  • Erysimum 'Pastel Patchwork'
  • Erysimum 'Red Jep'
  • Erythronium californicum
  • Erythronium californicum 'White Beauty'
  • Erythronium dens-canis 'Old Aberdeen'
  • Erythronium dens-canis 'Snowflake'
  • Erythronium hendersonii
  • Erythronium oregonum
  • Erythronium revolutum
  • Erythronium revolutum 'Knightshayes'
  • Erythronium revolutum 'Wild Salmon'
  • Erythronium tuolumnense 'Spindlestone'
  • Erythronium 'Harvington Snowgoose'
  • Erythronium 'Hidcote Beauty'
  • Erythronium 'Pagoda'
  • Erythronium 'Susannah'
  • Escallonia bifida
  • Escallonia laevis Pink Elle = 'Lades' (PBR)
  • Escallonia laevis 'Gold Brian'
  • Escallonia laevis 'Gold Ellen' (v)
  • Escallonia rubra var. macrantha
  • Escallonia Golden Carpet = 'Alcaura' (PBR)
  • Escallonia 'Apple Blossom'
  • Escallonia 'Donard Seedling'
  • Escallonia 'Iveyi'
  • Escallonia 'Peach Blossom'
  • Escallonia 'Red Knight'
  • Eucalyptus gunnii
  • Eucryphia lucida
  • Eucryphia lucida 'Ballerina'
  • Eucryphia lucida 'Gilt Edge' (v)
  • Eucryphia lucida 'Pink Cloud'
  • Eucryphia lucida 'Spring Glow' (v)
  • Eucryphia × nymansensis 'Nymansay'
  • Euonymus alatus
  • Euonymus alatus 'Blade Runner'
  • Euonymus alatus 'Compactus'
  • Euonymus europaeus 'Red Cascade'
  • Euonymus fortunei Blondy = 'Interbolwi' (v)
  • Euonymus fortunei 'Canadale Gold' (v)
  • Euonymus fortunei 'Emerald Gaiety' (v)
  • Euonymus fortunei 'Emerald 'n' Gold' (v)
  • Euonymus fortunei 'Harlequin' (v)
  • Euonymus fortunei 'Silver Queen' (v)
  • Euonymus fortunei 'Wolong Ghost'
  • Euonymus japonicus Paloma Blanca = 'Lankveld03' (PBR)
  • Euonymus japonicus 'Aureus' (v)
  • Euonymus japonicus 'Bravo' (v)
  • Euonymus japonicus 'Francien' (v)
  • Euonymus japonicus 'Green Rocket'
  • Euonymus japonicus 'Kathy' (PBR)
  • Euonymus japonicus 'Microphyllus Aureovariegatus' (v)
  • Euonymus japonicus 'Ovatus Aureus' (v)
  • Eupatorium dubium 'Baby Joe' (PBR)
  • Eupatorium fistulosum f. albidum 'Ivory Towers'
  • Eupatorium fortunei 'Pink Elegance' (v)
  • Eupatorium maculatum (Atropurpureum Group) 'Phantom' (PBR)
  • Eupatorium maculatum (Atropurpureum Group) 'Red Dwarf'
  • Eupatorium maculatum Atropurpureum Group
  • Euphorbia amygdaloides 'Craigieburn'
  • Euphorbia amygdaloides 'Purpurea'
  • Euphorbia amygdaloides var. robbiae
  • Euphorbia characias
  • Euphorbia characias 'Black Pearl'
  • Euphorbia characias 'Forescate'
  • Euphorbia characias 'Glacier Blue' (PBR) (v)
  • Euphorbia characias 'Goldbrook'
  • Euphorbia characias 'Portuguese Velvet'
  • Euphorbia characias subsp. characias 'Humpty Dumpty'
  • Euphorbia characias subsp. wulfenii
  • Euphorbia characias subsp. wulfenii Margery Fish Group
  • Euphorbia characias subsp. wulfenii 'Shorty'
  • Euphorbia characias 'Tasmanian Tiger' (PBR) (v)
  • Euphorbia cornigera
  • Euphorbia cyparissias 'Fens Ruby'
  • Euphorbia cyparissias 'Orange Man'
  • Euphorbia epithymoides
  • Euphorbia epithymoides 'Senior'
  • Euphorbia griffithii 'Fireglow'
  • Euphorbia mellifera
  • Euphorbia myrsinites
  • Euphorbia palustris
  • Euphorbia sikkimensis
  • Euphorbia × martini
  • Euphorbia × martini Tiny Tim = 'Waleutiny'
  • Euphorbia × martini 'Ascot Rainbow' (PBR) (v)
  • Euphorbia × martini 'Baby Charm'
  • Euphorbia × martini 'Kolibri'
  • Euphorbia × martini 'Walberton's Red Flush'
  • Euphorbia Excalibur = 'Froeup' (PBR)
  • Euphorbia 'Efanthia' (PBR)
  • Eurybia divaricata
  • Eurybia macrophylla
  • Exochorda × macrantha 'Niagara' (PBR)
  • Exochorda × macrantha 'The Bride'
  • Fagus sylvatica 'Dawyck Purple'
  • Fallopia baldschuanica
  • Fargesia murielae 'Dana Jumbo'
  • Fargesia murielae 'Jumbo'
  • Fargesia murielae 'Panda' (PBR)
  • Fargesia murielae 'Simba'
  • Fargesia nitida
  • Fatsia japonica
  • Fatsia japonica 'Tsumugi-shibori' (v)
  • Festuca glauca Intense Blue = 'Casblue' (PBR)
  • Festuca glauca 'Blaufuchs'
  • Festuca glauca 'Elijah Blue'
  • Festuca glauca 'Golden Toupee'
  • Festuca glauca 'Seeigel'
  • Ficaria verna 'Brazen Hussy'
  • Ficinia truncata 'Ice Crystal' (v)
  • Ficus carica 'Brown Turkey' (F)
  • Ficus carica 'Brunswick' (F)
  • Filipendula koreana
  • Filipendula palmata 'Rubra'
  • Filipendula rubra 'Venusta'
  • Filipendula ulmaria 'Variegata' (v)
  • Filipendula vulgaris 'Multiplex' (d)
  • Filipendula 'Kahome'
  • Foeniculum vulgare 'Purpureum'
  • Forsythia × intermedia Week End = 'Courtalyn'
  • Forsythia × intermedia 'Goldrausch'
  • Forsythia Marée d'Or = 'Courtasol'
  • Forsythia 'Golden Times' (v)
  • Fothergilla × intermedia 'Blue Shadow'
  • Fragaria vesca (F)
  • Fragaria × ananassa Delizz = 'Liza' (PBR) (F)
  • Fragaria × ananassa Fragoo Deep Rose = 'Tarpan' (Fragoo Series) (F)
  • Fragaria × ananassa Fragoo Pink = 'Pikan' (Fragoo Series) (F)
  • Fragaria × ananassa Fragoo White = 'Belton' (Fragoo Series) (F)
  • Fragaria × ananassa Pink Panda = 'Frel' (F)
  • Fragaria × ananassa 'Cambridge Favourite' (F)
  • Fragaria × ananassa 'Cambridge Vigour' (F)
  • Fragaria × ananassa 'Delia' (F)
  • Fragaria × ananassa 'Elan' (PBR) (F)
  • Fragaria × ananassa 'Elsanta' (F)
  • Fragaria × ananassa 'Everest' (PBR) (F)
  • Fragaria × ananassa 'Finesse' (F)
  • Fragaria × ananassa 'Florence' (PBR) (F)
  • Fragaria × ananassa 'Fresca' (F)
  • Fragaria × ananassa 'Pegasus' (F)
  • Fragaria × ananassa 'Red Glory' (PBR) (F)
  • Fragaria × ananassa 'Red Princess' (PBR) (F)
  • Fragaria × ananassa 'Redgauntlet' (F)
  • Fragaria × ananassa 'Rhapsody' (F)
  • Fragaria × ananassa 'Samba' (PBR) (F)
  • Fragaria × ananassa 'Symphony' (PBR) (F)
  • Fragaria × ananassa 'Temptation' (F)
  • Francoa sonchifolia
  • Francoa sonchifolia 'Pink Giant'
  • Francoa sonchifolia Rogerson's form
  • Fremontodendron 'California Glory'
  • Fritillaria imperialis 'Aurora'
  • Fritillaria imperialis 'Garland Star'
  • Fritillaria imperialis 'Lutea'
  • Fritillaria imperialis 'Maxima Lutea'
  • Fritillaria imperialis 'Orange Beauty'
  • Fritillaria imperialis 'Rubra'
  • Fritillaria imperialis 'Rubra Maxima'
  • Fritillaria imperialis 'William Rex'
  • Fritillaria meleagris
  • Fritillaria michailovskyi
  • Fritillaria persica
  • Fritillaria uva-vulpis
  • Fuchsia denticulata
  • Fuchsia magellanica
  • Fuchsia magellanica 'Lady Bacon'
  • Fuchsia magellanica var. gracilis 'Aurea'
  • Fuchsia 'Abbé Farges' (d)
  • Fuchsia 'Alice Hoffman' (d)
  • Fuchsia 'Army Nurse' (d)
  • Fuchsia 'Baby Blue Eyes'
  • Fuchsia 'Beacon'
  • Fuchsia 'Beacon Rosa'
  • Fuchsia 'Brutus'
  • Fuchsia 'Celia Smedley'
  • Fuchsia 'Charming'
  • Fuchsia 'Chillerton Beauty'
  • Fuchsia 'Chilli Red'
  • Fuchsia 'Delta's Sara'
  • Fuchsia 'Display'
  • Fuchsia 'Dollar Prinzessin' (d)
  • Fuchsia 'Easter Belle'
  • Fuchsia 'Flash'
  • Fuchsia 'Garden News' (d)
  • Fuchsia 'Genii'
  • Fuchsia 'George Barr'
  • Fuchsia 'Gladys Lorimer'
  • Fuchsia 'Hawkshead'
  • Fuchsia 'Heidi Ann' (d)
  • Fuchsia 'Ian Storey'
  • Fuchsia 'Janie' (d)
  • Fuchsia 'Jennifer Ann'
  • Fuchsia 'Lady Boothby'
  • Fuchsia 'Lady Thumb' (d)
  • Fuchsia 'Lechlade Gorgon'
  • Fuchsia 'Madame Cornélissen' (d)
  • Fuchsia 'Margaret Brown'
  • Fuchsia 'Mrs Popple'
  • Fuchsia 'Olga Storey'
  • Fuchsia 'Phyllis' (d)
  • Fuchsia 'Prosperity' (d)
  • Fuchsia 'Riccartonii'
  • Fuchsia 'Snowcap' (d)
  • Fuchsia 'Son of Thumb'
  • Fuchsia 'Spring Bells' (d)
  • Fuchsia 'Sunray' (v)
  • Fuchsia 'Tom West' Meillez (v)
  • Fuchsia 'Vanessa Wright'
  • Fuchsia 'Wharfedale'
  • Gaillardia × grandiflora Gallo Peach = 'Kiegalpea' (PBR) (Gallo Series)
  • Gaillardia × grandiflora 'Fanblaze' (PBR)
  • Gaillardia × grandiflora 'Fanfare' (PBR)
  • Gaillardia × grandiflora 'Kobold'
  • Gaillardia × grandiflora 'Sunset Cutie' (Sunset Dwarf Series)
  • Gaillardia × grandiflora 'Tokajer'
  • Galanthus elwesii
  • Galanthus elwesii var. monostictus
  • Galanthus nivalis
  • Galanthus plicatus
  • Galanthus plicatus 'Wendy's Gold'
  • Galanthus 'Atkinsii'
  • Galanthus 'Autumn Beauty'
  • Galanthus 'Brenda Troyle'
  • Galanthus 'Magnet'
  • Galanthus 'Richard Ayres' (d)
  • Galanthus 'S. Arnott'
  • Galatella sedifolia
  • Galega officinalis
  • Galtonia candicans
  • Galtonia princeps
  • Gardenia jasminoides 'Crown Jewel' (PBR) (d)
  • Gardenia jasminoides 'Kleim's Hardy'
  • Garrya elliptica
  • Garrya elliptica 'James Roof' (m)
  • Gaultheria cuneata
  • Gaultheria procumbens
  • Gaultheria × wisleyensis
  • Gaultheria × wisleyensis 'Pink Pixie'
  • Gazania Sunset Jane Lemon Spot = 'Sugajale' (Sunbathers Series)
  • Gazania Toptokai = 'Suga407' (Sunbathers Series)
  • Gazania Totonaca = 'Suga212' (Sunbathers Series)
  • Genista lydia
  • Genista 'Porlock'
  • Gentiana acaulis
  • Gentiana asclepiadea
  • Gentiana asclepiadea 'Alba'
  • Gentiana saxosa
  • Gentiana septemfida
  • Gentiana sino-ornata
  • Gentiana verna
  • Gentiana 'Blue Silk'
  • Geranium clarkei (Purple-flowered Group) 'Kashmir Purple'
  • Geranium clarkei 'Kashmir White'
  • Geranium dalmaticum
  • Geranium dalmaticum 'Album'
  • Geranium farreri
  • Geranium gracile
  • Geranium himalayense
  • Geranium himalayense 'Baby Blue'
  • Geranium himalayense 'Gravetye'
  • Geranium himalayense 'Plenum' (d)
  • Geranium ibericum Cav.
  • Geranium macrorrhizum 'Album'
  • Geranium macrorrhizum 'Bevan's Variety'
  • Geranium macrorrhizum 'Ingwersen's Variety'
  • Geranium macrorrhizum 'Pindus'
  • Geranium macrorrhizum 'Spessart'
  • Geranium macrorrhizum 'White-Ness'
  • Geranium maculatum
  • Geranium maculatum 'Espresso'
  • Geranium maculatum 'Shameface'
  • Geranium maderense
  • Geranium nodosum
  • Geranium nodosum 'Silverwood'
  • Geranium nodosum 'Svelte Lilac'
  • Geranium nodosum 'Whiteleaf'
  • Geranium palmatum
  • Geranium phaeum
  • Geranium phaeum 'Album'
  • Geranium phaeum 'Lily Lovell'
  • Geranium phaeum var. lividum 'Majus'
  • Geranium phaeum var. phaeum 'Langthorns Blue'
  • Geranium phaeum var. phaeum 'Samobor'
  • Geranium platypetalum Fisch. & C.A. Mey.
  • Geranium pratense (Victor Reiter Group) 'Purple Heron'
  • Geranium pratense 'Hocus Pocus'
  • Geranium pratense 'Mrs Kendall Clark'
  • Geranium pratense 'Plenum Violaceum' (d)
  • Geranium pratense 'Purple Ghost'
  • Geranium pratense var. pratense f. albiflorum 'Silver Queen'
  • Geranium psilostemon
  • Geranium psilostemon 'Jason Bloom'
  • Geranium pyrenaicum 'Bill Wallis'
  • Geranium richardsonii
  • Geranium sanguineum
  • Geranium sanguineum Alan Bloom = 'Bloger'
  • Geranium sanguineum 'Album'
  • Geranium sanguineum 'Ankum's Pride'
  • Geranium sanguineum 'Elsbeth'
  • Geranium sanguineum 'Glenluce'
  • Geranium sanguineum 'John Elsley'
  • Geranium sanguineum 'Max Frei'
  • Geranium sanguineum 'Pink Pouffe'
  • Geranium sanguineum var. striatum
  • Geranium sanguineum var. striatum 'Splendens'
  • Geranium subcaulescens
  • Geranium subcaulescens 'Giuseppii'
  • Geranium subcaulescens 'Splendens'
  • Geranium sylvaticum 'Album'
  • Geranium sylvaticum 'Mayflower'
  • Geranium traversii var. elegans
  • Geranium wallichianum 'Buxton's Variety'
  • Geranium wallichianum 'Sylvia's Surprise' (PBR)
  • Geranium wlassovianum
  • Geranium × cantabrigiense
  • Geranium × cantabrigiense Crystal Rose = 'Abpp'
  • Geranium × cantabrigiense 'Biokovo'
  • Geranium × cantabrigiense 'Cambridge'
  • Geranium × cantabrigiense 'Karmina'
  • Geranium × cantabrigiense 'St Ola'
  • Geranium × johnsonii 'Johnson's Blue'
  • Geranium × magnificum
  • Geranium × magnificum 'Rosemoor'
  • Geranium × monacense
  • Geranium × oxonianum 'A.T. Johnson'
  • Geranium × oxonianum 'Bressingham's Delight'
  • Geranium × oxonianum 'Claridge Druce'
  • Geranium × oxonianum f. thurstonianum
  • Geranium × oxonianum 'Lace Time'
  • Geranium × oxonianum 'Phoebe Noble'
  • Geranium × oxonianum 'Rebecca Moss'
  • Geranium × oxonianum 'Rose Clair'
  • Geranium × oxonianum 'Walter's Gift'
  • Geranium × oxonianum 'Wargrave Pink'
  • Geranium × riversleaianum 'Russell Prichard'
  • Geranium (Cinereum Group) 'Ballerina'
  • Geranium (Cinereum Group) 'Carol'
  • Geranium (Cinereum Group) 'Janette'
  • Geranium (Cinereum Group) 'Laurence Flatman'
  • Geranium (Cinereum Group) 'Sophie' (PBR)
  • Geranium Blue Sunrise = 'Blogold' (PBR)
  • Geranium Dragon Heart = 'Bremdra' (PBR)
  • Geranium Patricia = 'Brempat'
  • Geranium Rozanne = 'Gerwat' (PBR)
  • Geranium 'Alan Mayes'
  • Geranium 'Ann Folkard'
  • Geranium 'Anne Thomson'
  • Geranium 'Azure Rush'
  • Geranium 'Blue Cloud'
  • Geranium 'Brookside'
  • Geranium 'Coombland White'
  • Geranium 'Eureka Blue'
  • Geranium 'Ivan'
  • Geranium 'Jean Armour'
  • Geranium 'Joy'
  • Geranium 'Kashmir Blue'
  • Geranium 'Kashmir Pink'
  • Geranium 'Lilac Ice'
  • Geranium 'Little Gem'
  • Geranium 'Mavis Simpson'
  • Geranium 'Nicola'
  • Geranium 'Nimbus'
  • Geranium 'Orion'
  • Geranium 'Philippe Vapelle'
  • Geranium 'Red Admiral'
  • Geranium 'Sirak'
  • Geranium 'Spinners'
  • Geranium 'Stephanie'
  • Geranium 'Sue Crûg'
  • Geranium 'Tiny Monster'
  • Gerbera Garvinea Sweet Glow = 'Garglow' (PBR) (Garvinea Sweet Series)
  • Geum coccineum 'Cooky'
  • Geum montanum
  • Geum rivale
  • Geum rivale 'Album'
  • Geum rivale 'Leonard's Variety'
  • Geum Scarlet Tempest = 'Macgeu001' (PBR) (Tempest Series)
  • Geum 'Alabama Slammer' (Cocktails Series)
  • Geum 'Banana Daiquiri' (Cocktails Series)
  • Geum 'Bell Bank'
  • Geum 'Blazing Sunset' (d)
  • Geum 'Blood Orange'
  • Geum 'Borisii'
  • Geum 'Cosmopolitan' (Cocktails Series)
  • Geum 'Flames of Passion' (PBR)
  • Geum 'Georgenberg'
  • Geum 'Karlskaer'
  • Geum 'Lady Stratheden' (d)
  • Geum 'Lemon Drops'
  • Geum 'Marmalade'
  • Geum 'Moonlight Serenade'
  • Geum 'Mrs J. Bradshaw' (d)
  • Geum 'Poco'
  • Geum 'Prince of Orange' (d)
  • Geum 'Prinses Juliana'
  • Geum 'Rusty Young'
  • Geum 'Savanna Sunset'
  • Geum 'Stacey's Sunrise'
  • Geum 'Sunrise' (d)
  • Geum 'Tequila Sunrise' (Cocktails Series)
  • Geum 'Totally Tangerine' (PBR)
  • Gillenia trifoliata
  • Gladiolus communis subsp. byzantinus
  • Gladiolus murielae
  • Glandora oleifolia
  • Glandora prostrata 'Grace Ward'
  • Glandora prostrata 'Heavenly Blue'
  • Glandora prostrata 'Star' (PBR)
  • Glandora rosmarinifolia
  • Glandularia peruviana
  • Glandularia Seabrook's Lavender = 'Sealav' (PBR)
  • Glandularia Vectura Lavender (Vectura Series)
  • Glandularia 'Claret'
  • Glandularia 'Edith Eddleman'
  • Glandularia 'Homestead Purple'
  • Glandularia 'La France'
  • Glaucium corniculatum
  • Globularia cordifolia
  • Glyceria maxima var. variegata (v)
  • Grevillea 'Canberra Gem'
  • Griselinia littoralis
  • Griselinia littoralis 'Variegata' (v)
  • Gunnera magellanica
  • Gunnera manicata
  • Gymnocarpium dryopteris 'Plumosum'
  • Gypsophila aretioides
  • Gypsophila paniculata Summer Sparkles = 'Esm Chispa' (PBR)
  • Gypsophila 'Pink Festival' (Festival Series) (d)
  • Gypsophila 'White Festival' (PBR) (Festival Series) (d)
  • Hakonechloa macra
  • Hakonechloa macra 'Alboaurea' (v)
  • Hakonechloa macra 'Aureola'
  • Halimium calycinum
  • Halimium × pauanum
  • Halimium 'Susan'
  • Hamamelis mollis
  • Hamamelis mollis 'Jermyns Gold'
  • Hamamelis × intermedia 'Aphrodite'
  • Hamamelis × intermedia 'Arnold Promise'
  • Hamamelis × intermedia 'Barmstedt Gold'
  • Hamamelis × intermedia 'Diane'
  • Hamamelis × intermedia 'Jelena'
  • Hamamelis × intermedia 'Livia'
  • Hamamelis × intermedia 'Orange Beauty'
  • Hamamelis × intermedia 'Pallida'
  • Hamamelis × intermedia 'Robert'
  • Hamamelis × intermedia 'Rubin'
  • Hamamelis × intermedia 'Ruby Glow'
  • Hebe albicans
  • Hebe diosmifolia
  • Hebe glaucophylla 'Variegata' (v)
  • Hebe ochracea
  • Hebe odora 'New Zealand Gold'
  • Hebe pimeleoides 'Quicksilver'
  • Hebe pinguifolia 'Pagei'
  • Hebe pinguifolia 'Sutherlandii'
  • Hebe rakaiensis
  • Hebe salicifolia
  • Hebe speciosa 'Variegata' (v)
  • Hebe × franciscana 'Blue Gem' ambig.
  • Hebe Blue Star = 'Vergeer 1' (PBR)
  • Hebe Garden Beauty Purple = 'Nold' (PBR) (Garden Beauty Series)
  • Hebe Purple Shamrock = 'Neprock' (PBR) (v)
  • Hebe 'Autumn Glory'
  • Hebe 'Baby Marie'
  • Hebe 'Black Beauty'
  • Hebe 'Blue Clouds'
  • Hebe 'Caledonia'
  • Hebe 'Carnea Variegata' (v)
  • Hebe 'Celine'
  • Hebe 'Champagne'
  • Hebe 'Emerald Gem'
  • Hebe 'Great Orme'
  • Hebe 'Grethe'
  • Hebe 'Hanne'
  • Hebe 'Heartbreaker' (PBR) (v)
  • Hebe 'Lady Ann' (PBR) (v)
  • Hebe 'Lisa'
  • Hebe 'Magic Summer' (PBR)
  • Hebe 'Margret'
  • Hebe 'Marjorie'
  • Hebe 'Midsummer Beauty'
  • Hebe 'Mohawk' (PBR)
  • Hebe 'Mrs Winder'
  • Hebe 'Nicola's Blush'
  • Hebe 'Pascal'
  • Hebe 'Pearl of Paradise' (PBR)
  • Hebe 'Pink Goddess'
  • Hebe 'Pink Paradise' (PBR)
  • Hebe 'Purple Princess'
  • Hebe 'Red Edge'
  • Hebe 'Rosie'
  • Hebe 'Sapphire'
  • Hebe 'Silver Dollar' (v)
  • Hebe 'Silver Queen' (v)
  • Hebe 'Spring Glory'
  • Hebe 'Sweet Kim' (v)
  • Hebe 'Warley'
  • Hebe 'White Heather'
  • Hebe 'Wiri Charm'
  • Hebe 'Wiri Cloud'
  • Hebe 'Wiri Dawn'
  • Hebe 'Wiri Image'
  • Hebe 'Wiri Joy'
  • Hebe 'Wiri Mist'
  • Hebe 'Wiri Splash'
  • Hebe 'Youngii'
  • Hedera algeriensis 'Gloire de Marengo' (v)
  • Hedera algeriensis 'Montgomery'
  • Hedera helix 'Glacier' (v)
  • Hedera helix 'Goldchild' (v)
  • Hedera helix 'Green Ripple'
  • Helenium autumnale 'Bandera'
  • Helenium autumnale 'Fuego' (PBR) (Mariachi Series)
  • Helenium autumnale 'Helena Rote Töne' (Helena Series)
  • Helenium autumnale 'Helena Yellow' (Helena Series)
  • Helenium autumnale 'Ranchera' (PBR) (Mariachi Series)
  • Helenium autumnale 'Salsa' (PBR) (Mariachi Series)
  • Helenium autumnale 'Short and Sassy' (PBR)
  • Helenium autumnale 'Siesta' (PBR) (Mariachi Series)
  • Helenium puberulum
  • Helenium Mardi Gras = 'Helbro'
  • Helenium 'Blütentisch' Foerster
  • Helenium 'Bruno'
  • Helenium 'Butterpat'
  • Helenium 'Can Can'
  • Helenium 'Double Trouble' (PBR)
  • Helenium 'El Dorado'
  • Helenium 'Feuersiegel'
  • Helenium 'Flammendes Käthchen'
  • Helenium 'Königstiger'
  • Helenium 'Kanaria'
  • Helenium 'Karneol'
  • Helenium 'Moerheim Beauty'
  • Helenium 'Red Jewel'
  • Helenium 'Rubinzwerg'
  • Helenium 'Ruby Thuesday'
  • Helenium 'Sahin's Early Flowerer'
  • Helenium 'The Bishop'
  • Helenium 'Waltraut'
  • Helenium 'Wesergold'
  • Helenium 'Wyndley'
  • Helianthella quinquenervis
  • Helianthemum lunulatum
  • Helianthemum 'Amy Baring'
  • Helianthemum 'Annabel' (d)
  • Helianthemum 'Ben Afflick'
  • Helianthemum 'Ben Fhada'
  • Helianthemum 'Ben Heckla'
  • Helianthemum 'Ben Hope'
  • Helianthemum 'Ben More'
  • Helianthemum 'Ben Vane'
  • Helianthemum 'Chocolate Blotch'
  • Helianthemum 'Fire Dragon'
  • Helianthemum 'Hartswood Ruby'
  • Helianthemum 'Henfield Brilliant'
  • Helianthemum 'Highdown Apricot'
  • Helianthemum 'Lawrenson's Pink'
  • Helianthemum 'Mrs C.W. Earle' (d)
  • Helianthemum 'Raspberry Ripple'
  • Helianthemum 'Rhodanthe Carneum'
  • Helianthemum 'Saint John's College Yellow'
  • Helianthemum 'Salmon Queen'
  • Helianthemum 'Sudbury Gem'
  • Helianthemum 'Sulphur Moon'
  • Helianthemum 'The Bride'
  • Helianthemum 'Wisley Primrose'
  • Helianthemum 'Wisley Rose'
  • Helianthus giganteus 'Sheila's Sunshine'
  • Helianthus salicifolius
  • Helianthus 'Lemon Queen'
  • Helianthus 'Loddon Gold'
  • Helichrysum italicum 'Korma' (PBR)
  • Helichrysum thianschanicum 'White Wonder'
  • Helictotrichon sempervirens
  • Heliopsis helianthoides var. scabra 'Sunburst' (v)
  • Helleborus argutifolius
  • Helleborus foetidus
  • Helleborus foetidus 'Harvington Pewter'
  • Helleborus lividus
  • Helleborus niger
  • Helleborus niger HGC Joel = 'Coseh 210' (PBR)
  • Helleborus niger HGC Jonas = 'Coseh 220' (PBR)
  • Helleborus niger HGC Snow Frills = 'Coseh 230' (PBR)
  • Helleborus niger HGC Wintergold = 'Coseh 2010' (PBR)
  • Helleborus niger 'Christmas Carol'
  • Helleborus niger Harvington hybrids
  • Helleborus niger 'HGC Jacob' (PBR)
  • Helleborus niger 'Mini Blanc'
  • Helleborus niger 'Potter's Wheel'
  • Helleborus orientalis Lam.
  • Helleborus × ballardiae HGC Camelot = 'Coseh 940' (PBR)
  • Helleborus × ballardiae HGC Maestro = 'Coseh 890' (PBR)
  • Helleborus × ballardiae HGC Snow Dance = 'Coseh 800' (PBR)
  • Helleborus × ballardiae 'Candy Love' (PBR)
  • Helleborus × ericsmithii HGC Marlon Cream = 'Coseh 980' (PBR)
  • Helleborus × ericsmithii HGC Monte Cristo = 'Coseh 860' (PBR)
  • Helleborus × ericsmithii HGC Shooting Star = 'Coseh 790' (PBR)
  • Helleborus × ericsmithii 'Ivory Prince' (PBR)
  • Helleborus × ericsmithii 'Pirouette' (PBR)
  • Helleborus × ericsmithii 'Snow Love' (PBR)
  • Helleborus × ericsmithii 'Winter Moonbeam' (PBR)
  • Helleborus × ericsmithii 'Winter Sunshine' (PBR)
  • Helleborus × hybridus
  • Helleborus × hybridus SP Conny = 'Hlr 160' (PBR) (Spring Promise Series)
  • Helleborus × hybridus SP John Hopkins = 'Hlr 220' (Spring Promise Series)
  • Helleborus × hybridus 'Blue Metallic Lady' (Lady Series)
  • Helleborus × hybridus double white picotee (d)
  • Helleborus × hybridus double yellow, cream-speckled (d)
  • Helleborus × hybridus Harvington apricot
  • Helleborus × hybridus 'Harvington Black'
  • Helleborus × hybridus Harvington double apricot (d)
  • Helleborus × hybridus Harvington double blush (d)
  • Helleborus × hybridus Harvington double chocolate (d)
  • Helleborus × hybridus Harvington double cream speckled (d)
  • Helleborus × hybridus Harvington double dark purple (d)
  • Helleborus × hybridus Harvington double pink (d)
  • Helleborus × hybridus Harvington double pink speckled (d)
  • Helleborus × hybridus Harvington double purple (d)
  • Helleborus × hybridus Harvington double purple cascade (d)
  • Helleborus × hybridus Harvington double red (d)
  • Helleborus × hybridus Harvington double white (d)
  • Helleborus × hybridus Harvington double yellow (d)
  • Helleborus × hybridus Harvington double yellow speckled (d)
  • Helleborus × hybridus Harvington double, lime-green (d)
  • Helleborus × hybridus Harvington dusky
  • Helleborus × hybridus Harvington lime
  • Helleborus × hybridus 'Harvington Petticoat'
  • Helleborus × hybridus Harvington picotee
  • Helleborus × hybridus Harvington pink
  • Helleborus × hybridus Harvington red
  • Helleborus × hybridus 'Harvington Shades of the Night'
  • Helleborus × hybridus Harvington speckled
  • Helleborus × hybridus Harvington white
  • Helleborus × hybridus Harvington yellow
  • Helleborus × hybridus Harvington yellow speckled
  • Helleborus × hybridus Hillier hybrids yellow, magenta eye
  • Helleborus × hybridus 'Pink Lady' (Lady Series)
  • Helleborus × hybridus 'Red Lady' (Lady Series)
  • Helleborus × hybridus 'Smokey Blue'
  • Helleborus × hybridus spotted, pink
  • Helleborus × hybridus 'Tutu' (PBR)
  • Helleborus × hybridus 'White Lady Spotted' (Lady Series)
  • Helleborus × hybridus 'Yellow Lady' (Lady Series)
  • Helleborus × nigercors HGC Ice Breaker Fancy = 'Coseh 820'
  • Helleborus × nigercors HGC Ice Breaker Max = 'Coseh 750' (PBR)
  • Helleborus × nigercors HGC Ice Breaker Prelude = 'Coseh 830' (PBR)
  • Helleborus × nigercors 'Emma' (PBR)
  • Helleborus × nigercors 'HGC Green Corsican'
  • Helleborus × sahinii 'Winterbells' (PBR)
  • Helleborus × sternii
  • Helleborus (Rodney Davey Marbled Group) Anna's Red = 'Abcrd02' (PBR) (Frostkiss Series)
  • Helleborus Angel Glow = 'B11-02'
  • Helleborus HGC Cinnamon Snow = 'Coseh 700' (PBR)
  • Helleborus HGC Madame Lemonnier = 'Lem 100' (PBR)
  • Helleborus HGC Pink Frost = 'Coseh 710' (PBR)
  • Helleborus Walberton's Rosemary = 'Walhero' (PBR)
  • Helleborus 'Harvington Rebekah' (PBR)
  • Helleborus 'Verboom Beauty'
  • Helleborus 'White Beauty' (PBR)
  • Hemerocallis fulva 'Green Kwanso' (d)
  • Hemerocallis lilioasphodelus
  • Hemerocallis minor
  • Hemerocallis 'Alan'
  • Hemerocallis 'Arctic Snow'
  • Hemerocallis 'Bakabana'
  • Hemerocallis 'Bela Lugosi'
  • Hemerocallis 'Black Magic'
  • Hemerocallis 'Blackberry Candy'
  • Hemerocallis 'Bonanza'
  • Hemerocallis 'Burning Daylight'
  • Hemerocallis 'Buzz Bomb'
  • Hemerocallis 'Byzantine Emperor'
  • Hemerocallis 'Cartwheels'
  • Hemerocallis 'Catherine Woodbery'
  • Hemerocallis 'Cathy's Sunset'
  • Hemerocallis 'Cherry Cheeks'
  • Hemerocallis 'Chicago Sunrise'
  • Hemerocallis 'Christmas Is'
  • Hemerocallis 'Contessa'
  • Hemerocallis 'Cream Drop'
  • Hemerocallis 'Crimson Pirate'
  • Hemerocallis 'Custard Candy'
  • Hemerocallis 'Daring Deception'
  • Hemerocallis 'Dark Angel'
  • Hemerocallis 'Double Cutie' (d)
  • Hemerocallis 'Dragon's Eye'
  • Hemerocallis 'Edge Ahead'
  • Hemerocallis 'Edna Spalding'
  • Hemerocallis 'El Desperado'
  • Hemerocallis 'Fooled Me'
  • Hemerocallis 'Frans Hals'
  • Hemerocallis 'Frozen Jade'
  • Hemerocallis 'Gentle Shepherd'
  • Hemerocallis 'George Cunningham'
  • Hemerocallis 'Giant Moon'
  • Hemerocallis 'Golden Chimes'
  • Hemerocallis 'Greenland'
  • Hemerocallis 'Happy Returns'
  • Hemerocallis 'Hornby Castle'
  • Hemerocallis 'Janice Brown'
  • Hemerocallis 'Joan Senior'
  • Hemerocallis 'Lark Song'
  • Hemerocallis 'Little Wine Cup'
  • Hemerocallis 'Longfields Glory'
  • Hemerocallis 'Mini Pearl'
  • Hemerocallis 'Mountain Laurel'
  • Hemerocallis 'Neyron Rose'
  • Hemerocallis 'Pardon Me'
  • Hemerocallis 'Pink Charm'
  • Hemerocallis 'Pink Damask'
  • Hemerocallis 'Red Rum'
  • Hemerocallis 'Royal Heritage'
  • Hemerocallis 'Sammy Russell'
  • Hemerocallis 'Satin Glass'
  • Hemerocallis 'School Girl'
  • Hemerocallis 'Serena Sunburst'
  • Hemerocallis 'Siloam Red Toy'
  • Hemerocallis 'Snowy Apparition'
  • Hemerocallis 'Sombrero Way'
  • Hemerocallis 'Stafford'
  • Hemerocallis 'Stella de Oro'
  • Hemerocallis 'Strawberry Candy'
  • Hemerocallis 'Summer Wine'
  • Hemerocallis 'Varsity'
  • Hemerocallis 'Whichford'
  • Hepatica nobilis
  • Hereroa glenensis
  • Hesperantha coccinea f. alba
  • Hesperantha coccinea 'Fenland Daybreak'
  • Hesperantha coccinea 'Major'
  • Hesperantha coccinea 'Sunrise'
  • Heuchera sanguinea 'Coral Petite'
  • Heuchera sanguinea 'Frosty'
  • Heuchera sanguinea 'Ruby Bells'
  • Heuchera villosa 'Palace Purple'
  • Heuchera Carnival Coffee Bean = 'Balcarcean' (PBR) (Carnival Series)
  • Heuchera Carnival Peach Parfait = 'Balcarpait' (Carnival Series)
  • Heuchera Crème Brûlée = 'Tnheu041' (Dolce Series)
  • Heuchera Key Lime Pie = 'Tnheu042' (PBR) (Dolce Series)
  • Heuchera Licorice = 'Tnheu044' (PBR) (Dolce Series)
  • Heuchera Sugar Frosting = 'Pwheu0104' (PBR)
  • Heuchera 'Autumn Glow' (Seasonal Selection Series)
  • Heuchera 'Beauty Colour'
  • Heuchera 'Berry Smoothie' (PBR)
  • Heuchera 'Binoche' (PBR)
  • Heuchera 'Blackberry Jam'
  • Heuchera 'Blondie' (PBR) (Little Cutie Series)
  • Heuchera 'Blondie in Lime' (Little Cutie Series)
  • Heuchera 'Bright and Breezy' (Seasonal Selection Series)
  • Heuchera 'Can-can'
  • Heuchera 'Caramel' (PBR)
  • Heuchera 'Cherry Cola' (PBR)
  • Heuchera 'Chocolate Ruffles' (PBR)
  • Heuchera 'Citronelle'
  • Heuchera 'Coco' (PBR) (Little Cutie Series)
  • Heuchera 'Crimson Curls'
  • Heuchera 'Dark Storm' (Seasonal Selection Series)
  • Heuchera 'Fire Alarm' (PBR)
  • Heuchera 'Fire Chief' (PBR)
  • Heuchera 'Forever Purple' (Forever Series)
  • Heuchera 'Georgia Plum'
  • Heuchera 'Ginger Ale' (PBR)
  • Heuchera 'Green Spice'
  • Heuchera 'Havana' (PBR)
  • Heuchera 'Kassandra' (PBR)
  • Heuchera 'Lemon Chiffon'
  • Heuchera 'Lime Marmalade'
  • Heuchera 'Malachite'
  • Heuchera 'Marmalade' (PBR)
  • Heuchera 'Mars'
  • Heuchera 'Midnight Rose'
  • Heuchera 'Milan' (PBR)
  • Heuchera 'Obsidian' (PBR)
  • Heuchera 'Paprika' (PBR)
  • Heuchera 'Paris' (PBR)
  • Heuchera 'Pauline' (Fox Series)
  • Heuchera 'Peach Flambé' (PBR)
  • Heuchera 'Persian Carpet'
  • Heuchera 'Pink Pearls' (PBR)
  • Heuchera 'Plum Pudding' (PBR)
  • Heuchera 'Prince'
  • Heuchera 'Quick Silver'
  • Heuchera 'Rachel'
  • Heuchera 'Red Sea'
  • Heuchera 'Regina'
  • Heuchera 'Root Beer' (PBR)
  • Heuchera 'September Morn' (Seasonal Selection Series)
  • Heuchera 'Shanghai' (PBR)
  • Heuchera 'Silver Heart'
  • Heuchera 'Silver Scrolls' (PBR)
  • Heuchera 'Stormy Seas'
  • Heuchera 'Sugar Berry' (PBR) (Little Cutie Series)
  • Heuchera 'Sweet Tart' (PBR) (Little Cutie Series)
  • Heuchera 'Venus'
  • Heuchera 'Winter Joy' (Seasonal Selection Series)
  • Hibiscus syriacus Blue Chiffon = 'Notwood3' (PBR) (Chiffon Series) (d)
  • Hibiscus syriacus Lavender Chiffon = 'Notwoodone' (PBR) (Chiffon Series) (d)
  • Hibiscus syriacus Magenta Chiffon = 'Rwoods5' (PBR) (Chiffon Series)
  • Hibiscus syriacus Pink Chiffon = 'Jwnwood4' (PBR) (Chiffon Series) (d)
  • Hibiscus syriacus 'Diana'
  • Hibiscus syriacus 'Hamabo'
  • Hibiscus syriacus 'Red Heart'
  • Hibiscus syriacus 'Woodbridge'
  • Hibiscus Rose Moon = 'Walhirosmo' (PBR)
  • Hosta crispula (v)
  • Hosta fortunei var. albopicta (v)
  • Hosta fortunei var. aureomarginata (v)
  • Hosta sieboldiana var. elegans
  • Hosta undulata var. albomarginata (v)
  • Hosta undulata var. erromena
  • Hosta undulata var. undulata (v)
  • Hosta venusta
  • Hosta (Tardiana Group) 'Halcyon'
  • Hosta (Tardiana Group) 'June' (PBR) (v)
  • Hosta (Tardiana Group) 'Sherborne Swift'
  • Hosta 'August Moon'
  • Hosta 'Big Daddy' (sieboldiana hybrid) (v)
  • Hosta 'Blue Angel' (sieboldiana)
  • Hosta 'Blue Cadet'
  • Hosta 'Cherry Berry' (v)
  • Hosta 'Choko-nishiki' (montana) (v)
  • Hosta 'Christmas Tree' (v)
  • Hosta 'City Lights'
  • Hosta 'Craig's Temptation'
  • Hosta 'Dragon Tails'
  • Hosta 'Fire and Ice' (v)
  • Hosta 'First Frost' (v)
  • Hosta 'Francee' (fortunei) (v)
  • Hosta 'Frances Williams' (sieboldiana) (v)
  • Hosta 'Ginko Craig' (v)
  • Hosta 'Gold Edger'
  • Hosta 'Gold Standard' (fortunei) (v)
  • Hosta 'Goldbrook Grayling'
  • Hosta 'Golden Medallion' (tokudama)
  • Hosta 'Golden Tiara' (v)
  • Hosta 'Great Expectations' (sieboldiana) (v)
  • Hosta 'Guacamole' (v)
  • Hosta 'Hydon Sunset'
  • Hosta 'Ivory Coast' (v)
  • Hosta 'Krossa Regal'
  • Hosta 'Lemon Delight'
  • Hosta 'Lemon Lime'
  • Hosta 'Little White Lines' (v)
  • Hosta 'Orange Marmalade' (v)
  • Hosta 'Patriot' (v)
  • Hosta 'Patriot's Fire' (v)
  • Hosta 'Pilgrim' (v)
  • Hosta 'Potomac Pride'
  • Hosta 'Prince of Wales'
  • Hosta 'Radiant Edger' (v)
  • Hosta 'Raspberry Sorbet'
  • Hosta 'Regal Splendor' (v)
  • Hosta 'Sagae' (v)
  • Hosta 'Shade Fanfare' (v)
  • Hosta 'Snowden'
  • Hosta 'So Sweet' (v)
  • Hosta 'Sum and Substance'
  • Hosta 'Sweet Susan'
  • Hosta 'Thumbelina'
  • Hosta 'Twilight' (fortunei) (v)
  • Hosta 'Twist of Lime' (v)
  • Hosta 'Vanilla Cream' (cathayana)
  • Hosta 'Verna Jean' (v)
  • Hosta 'Veronica Lake' (v)
  • Hosta 'Victory'
  • Hosta 'Wide Brim' (v)
  • Humulus lupulus 'Aureus'
  • Hyacinthoides non-scripta
  • Hyacinthus orientalis 'China Pink'
  • Hyacinthus orientalis 'City of Haarlem'
  • Hyacinthus orientalis 'Delft Blue'
  • Hyacinthus orientalis 'Fondant'
  • Hyacinthus orientalis 'Jan Bos'
  • Hyacinthus orientalis 'Pink Pearl'
  • Hyacinthus orientalis 'White Pearl'
  • Hydrangea anomala subsp. petiolaris
  • Hydrangea anomala subsp. petiolaris 'Silver Lining' (PBR)
  • Hydrangea anomala subsp. petiolaris 'Summer Snow' (v)
  • Hydrangea arborescens Pink Annabelle = 'Ncha1' (PBR)
  • Hydrangea arborescens Strong Annabelle = 'Abetwo' (PBR)
  • Hydrangea arborescens 'Annabelle'
  • Hydrangea aspera Villosa Group
  • Hydrangea macrophylla Chique = 'Hbachi' (PBR) (H)
  • Hydrangea macrophylla Coco = 'W002095' (PBR) (Beautensia Series) (H/d)
  • Hydrangea macrophylla Hot Red = 'Agrihydradrie' (PBR) (H)
  • Hydrangea macrophylla Romance = 'Youmenine' (PBR) (H/d)
  • Hydrangea macrophylla Salsa = 'Sidsalimp' (PBR) (Dutch Ladies Series) (H/d)
  • Hydrangea macrophylla Black Steel Series (H)
  • Hydrangea macrophylla 'Cardinal Red' (H)
  • Hydrangea macrophylla 'Cotton Candy Two' (L)
  • Hydrangea macrophylla 'Dark Angel' (Black Diamonds Series) (L)
  • Hydrangea macrophylla 'Générale Vicomtesse de Vibraye' (H)
  • Hydrangea macrophylla 'King George' (H)
  • Hydrangea macrophylla 'Koria' (PBR) (L)
  • Hydrangea macrophylla 'Lady in Red' (L)
  • Hydrangea macrophylla 'Libelle' (Teller Series) (L)
  • Hydrangea macrophylla 'Love You Kiss' (PBR) (Hovaria Series) (L)
  • Hydrangea macrophylla 'Mariesii Perfecta' (L)
  • Hydrangea macrophylla 'Mirai' (PBR) (H)
  • Hydrangea macrophylla 'Nigra' (H)
  • Hydrangea macrophylla 'Red Angel' (Black Diamonds Series) (H)
  • Hydrangea macrophylla 'Sabrina' (Dutch Ladies Series) (H)
  • Hydrangea macrophylla 'Spike' (PBR) (H)
  • Hydrangea macrophylla 'Tivoli' (PBR) (H)
  • Hydrangea macrophylla 'Zorro' (PBR) (L)
  • Hydrangea paniculata Bobo = 'Ilvobo' (PBR)
  • Hydrangea paniculata Diamant Rouge = 'Rendia' (PBR)
  • Hydrangea paniculata Magical Candle = 'Bokraflame' (PBR) (Magical Series)
  • Hydrangea paniculata Magical Fire = 'Bokraplume' (PBR) (Magical Series)
  • Hydrangea paniculata Pink Diamond = 'Interhydia'
  • Hydrangea paniculata Pinky-Winky = 'Dvppinky' (PBR)
  • Hydrangea paniculata Sundae Fraise = 'Rensun' (PBR)
  • Hydrangea paniculata Vanille Fraise = 'Renhy' (PBR)
  • Hydrangea paniculata 'Big Ben'
  • Hydrangea paniculata 'Bombshell' (PBR)
  • Hydrangea paniculata 'Brussels Lace'
  • Hydrangea paniculata 'Everest'
  • Hydrangea paniculata 'Floribunda'
  • Hydrangea paniculata 'Grandiflora'
  • Hydrangea paniculata 'Greenspire'
  • Hydrangea paniculata 'Jane' (PBR)
  • Hydrangea paniculata 'Kyushu'
  • Hydrangea paniculata 'Last Post'
  • Hydrangea paniculata 'Limelight' (PBR)
  • Hydrangea paniculata 'Phantom'
  • Hydrangea paniculata 'Silver Dollar'
  • Hydrangea paniculata 'Unique'
  • Hydrangea paniculata 'White Lady'
  • Hydrangea quercifolia Snowflake = 'Brido' (d)
  • Hydrangea quercifolia 'Harmony'
  • Hydrangea seemannii
  • Hydrangea serrata Tuff Stuff = 'Mak 20' (PBR) (L)
  • Hydrangea serrata 'Beni-gaku' (L)
  • Hydrangea serrata 'Bluebird' (L)
  • Hydrangea serrata 'Grayswood' (L)
  • Hydrangea serrata 'Tiara' (L)
  • Hydrangea Early Sensation = 'Bulk' (PBR)
  • Hydrangea Miss Saori = 'H2002' (PBR) (d)
  • Hydrangea Semiola = 'Inovalaur' (PBR)
  • Hydrangea 'Preziosa'
  • Hylomecon japonica
  • Hylotelephium cauticola 'Coca-Cola'
  • Hylotelephium cyaneum 'Sakhalin'
  • Hylotelephium erythrostictum 'Frosty Morn' (v)
  • Hylotelephium ewersii var. homophyllum 'Rosenteppich'
  • Hylotelephium pluricaule
  • Hylotelephium spectabile
  • Hylotelephium spectabile (Brilliant Group) 'Hot Stuff'
  • Hylotelephium spectabile (Brilliant Group) 'Septemberglut'
  • Hylotelephium spectabile Walberton's Pizazz
  • Hylotelephium spectabile 'Iceberg'
  • Hylotelephium spectabile 'Stardust'
  • Hylotelephium telephium (Atropurpureum Group) 'Bressingham Purple'
  • Hylotelephium telephium (Atropurpureum Group) 'Dark Knight'
  • Hylotelephium telephium (Atropurpureum Group) 'Picolette'
  • Hylotelephium telephium (Atropurpureum Group) 'Purple Emperor'
  • Hylotelephium telephium (Atropurpureum Group) 'Xenox' (PBR)
  • Hylotelephium telephium 'Strawberries and Cream'
  • Hylotelephium telephium subsp. ruprechtii
  • Hylotelephium telephium 'Touchdown Teak' (PBR) (Touchdown Series)
  • Hylotelephium (Herbstfreude Group) 'Herbstfreude'
  • Hylotelephium Walberton's Pink Whisper
  • Hylotelephium 'Bertram Anderson'
  • Hylotelephium 'Carl'
  • Hylotelephium 'Class Act' (PBR)
  • Hylotelephium 'José Aubergine' (PBR)
  • Hylotelephium 'Matrona'
  • Hylotelephium 'Mr Goodbud' (PBR)
  • Hylotelephium 'Munstead Red'
  • Hylotelephium 'Pool Party' (PBR) (Party Hardy Series)
  • Hylotelephium 'Red Cauli'
  • Hylotelephium 'Ruby Glow'
  • Hylotelephium 'Stewed Rhubarb Mountain'
  • Hylotelephium 'Vera Jameson'
  • Hymenoxys hoopesii
  • Hypericum olympicum
  • Hypericum olympicum f. minus 'Sulphureum'
  • Hypericum × hidcoteense 'Hidcote'
  • Hypericum × moserianum Little Misstery = 'Dunnehyp' (PBR) (v)
  • Hypericum × moserianum 'Tricolor' (v)
  • Hypericum Miracle Blizz = 'Allblizz' (Miracle Series)
  • Hypericum Miracle Blossom = 'Allblossom' (PBR) (Miracle Series)
  • Iberis saxatilis
  • Iberis sempervirens 'Appen-Etz'
  • Iberis 'Masterpiece' (PBR)
  • Iberis 'Pink Ice'
  • Ilex aquifolium 'Alaska' (f)
  • Ilex aquifolium 'Argentea Marginata' (f/v)
  • Ilex aquifolium 'Ferox Argentea' (m/v)
  • Ilex aquifolium 'Handsworth New Silver' (f/v)
  • Ilex aquifolium 'J.C. van Tol' (f)
  • Ilex aquifolium 'Silver Milkmaid' (f/v)
  • Ilex crenata 'Convexa' (f)
  • Ilex crenata 'Golden Gem' (f/v)
  • Ilex crenata 'Shiro-fukurin' (f/v)
  • Ilex crenata 'Variegata' (v)
  • Ilex × altaclerensis 'Golden King' (f/v)
  • Ilex × altaclerensis 'Lawsoniana' (f/v)
  • Ilex × meserveae Blue Angel = 'Conang' (f)
  • Ilex × meserveae Blue Maid = 'Mesid' (f)
  • Imperata cylindrica 'Rubra'
  • Incarvillea delavayi
  • Incarvillea mairei
  • Indigofera amblyantha
  • Indigofera heterantha
  • Indigofera himalayensis 'Silk Road'
  • Inula magnifica
  • Inula orientalis
  • Inula racemosa
  • Ipheion uniflorum 'Charlotte Bishop'
  • Ipheion uniflorum f. album
  • Ipheion uniflorum 'Froyle Mill'
  • Ipheion uniflorum 'Wisley Blue'
  • Ipheion 'Alberto Castillo'
  • Ipheion 'Jessie'
  • Ipheion 'Rolf Fiedler'
  • Iris chrysographes
  • Iris chrysographes black-flowered
  • Iris danfordiae
  • Iris delavayi 'Didcot'
  • Iris ensata
  • Iris ensata 'Moonlight Waves'
  • Iris ensata 'Rose Queen'
  • Iris ensata 'Variegata' (v)
  • Iris foetidissima
  • Iris histrioides 'Halkis'
  • Iris histrioides 'Lady Beatrix Stanley'
  • Iris innominata
  • Iris pallida 'Argentea Variegata' (TB/v)
  • Iris pallida Lam. 'Variegata' Hort. (v)
  • Iris pallida subsp. pallida
  • Iris pseudacorus
  • Iris pseudacorus 'Variegata' (v)
  • Iris pumila
  • Iris sanguinea 'Snow Queen'
  • Iris setosa
  • Iris setosa 'Baby Blue'
  • Iris unguicularis
  • Iris winogradowii
  • Iris × norrisii
  • Iris × robusta 'Gerald Darby'
  • Iris 'Action Front' (TB)
  • Iris 'Actress' (TB)
  • Iris 'Alida' (Reticulata)
  • Iris 'Benton Caramel' (TB)
  • Iris 'Benton Dierdre' (TB)
  • Iris 'Benton Duff' (TB)
  • Iris 'Benton Lorna' (TB)
  • Iris 'Benton Olive' (TB)
  • Iris 'Benton Primrose' (TB)
  • Iris 'Benton Susan' (TB)
  • Iris 'Berkeley Gold' (TB)
  • Iris 'Beverly Sills' (TB)
  • Iris 'Black Swan' (TB)
  • Iris 'Black Tie Affair' (TB)
  • Iris 'Blue Note' (Reticulata)
  • Iris 'Blue Rhythm' (TB)
  • Iris 'Blue Shimmer' (TB)
  • Iris 'Bold Print' (IB)
  • Iris 'Braithwaite' (TB)
  • Iris 'Butter and Sugar' (Sib)
  • Iris 'Butterscotch Kiss' (TB)
  • Iris 'Caesar's Brother' (Sib)
  • Iris 'Cambridge' (Sib)
  • Iris 'Cantab' (Reticulata)
  • Iris 'Carnaby' (TB)
  • Iris 'Carnival Time' (TB)
  • Iris 'Carolina' (Reticulata)
  • Iris 'Chantilly' (TB)
  • Iris 'Clairette' (Reticulata)
  • Iris 'Dancer's Veil' (TB)
  • Iris 'Deep Black' (TB)
  • Iris 'Dreaming Yellow' (Sib)
  • Iris 'Fabiola' (Reticulata)
  • Iris 'Flight of Butterflies' (Sib)
  • Iris 'Foggy Dew' (TB)
  • Iris 'Frank Elder' (Reticulata)
  • Iris 'Frost and Flame' (TB)
  • Iris 'George' (Reticulata)
  • Iris 'Gordon' (Reticulata)
  • Iris 'Green Spot' (SDB)
  • Iris 'Harmony' (Reticulata)
  • Iris 'Hocus Pocus' (SDB)
  • Iris 'J.S. Dijt' (Reticulata)
  • Iris 'Jane Phillips' (TB)
  • Iris 'Joyce' (Reticulata)
  • Iris 'June Prom' (IB)
  • Iris 'Katharine Hodgkin' (Reticulata)
  • Iris 'Kent Pride' (TB)
  • Iris 'Knick Knack' (MDB)
  • Iris 'Langport Storm' (IB)
  • Iris 'Langport Wren' (IB)
  • Iris 'Lilli-white' (SDB)
  • Iris 'Love's Tune' (IB)
  • Iris 'Madeira Belle' (TB)
  • Iris 'Melton Red Flare' (Sib)
  • Iris 'Mountain Lake' (Sib)
  • Iris 'Ola Kalá' (TB)
  • Iris 'Orange Caper' (SDB)
  • Iris 'Palm Springs' (Reticulata)
  • Iris 'Papillon' (Sib)
  • Iris 'Party Dress' (TB)
  • Iris 'Pauline' (Reticulata)
  • Iris 'Perry's Blue' (Sib)
  • Iris 'Persimmon' ambig. (Sib)
  • Iris 'Pink Charm' (TB)
  • Iris 'Pogo' (SDB)
  • Iris 'Purple Gem' (Reticulata)
  • Iris 'Quechee' (TB)
  • Iris 'Rajah' (TB)
  • Iris 'Raspberry Blush' (IB)
  • Iris 'Rhapsody' (Reticulata)
  • Iris 'Rocket' (TB)
  • Iris 'Sable' (TB)
  • Iris 'Saint Crispin' (TB)
  • Iris 'Sheila Ann Germaney' (Reticulata)
  • Iris 'Showdown' (Sib)
  • Iris 'Silver Edge' (Sib)
  • Iris 'Snow Tracery' (TB)
  • Iris 'Snowcrest' (Sib)
  • Iris 'Sparkling Rose' (Sib)
  • Iris 'Stepping Out' (TB)
  • Iris 'Teverlae' (Sib)
  • Iris 'Tinkerbell' (SDB)
  • Iris 'Tropic Night' (Sib)
  • Iris 'Violet Beauty' (Reticulata)
  • Iris 'White City' (TB)
  • Iris 'White Swirl' (Sib)
  • Iris 'Winter Olympics' (TB)
  • Itea ilicifolia
  • Jasione laevis 'Blaulicht'
  • Jasminum beesianum
  • Jasminum nudiflorum
  • Jasminum nudiflorum 'Mystique' (v)
  • Jasminum officinale
  • Jasminum officinale Fiona Sunrise = 'Frojas' (PBR)
  • Jasminum officinale Sunbeam = 'Lowbeam'
  • Jasminum officinale 'Devon Cream' (PBR)
  • Jasminum officinale f. affine
  • Jasminum officinale 'Inverleith'
  • Jasminum × stephanense
  • Jeffersonia diphylla
  • Jeffersonia dubia
  • Jovibarba allionii 'Oki'
  • Jovibarba heuffelii
  • Jovibarba hirta var. neilreichii
  • Jovibarba sobolifera 'Green Globe'
  • Juncus decipiens 'Curly-wurly'
  • Juncus effusus f. spiralis
  • Kerria japonica 'Golden Guinea'
  • Kirengeshoma palmata
  • Kirengeshoma palmata Koreana Group
  • Klasea radiata subsp. gmelinii
  • Knautia macedonica
  • Knautia macedonica 'Mars Midget'
  • Knautia macedonica Melton pastels
  • Knautia macedonica 'Red Knight'
  • Knautia macedonica 'Thunder and Lightning' (PBR) (v)
  • Kniphofia caulescens
  • Kniphofia galpinii ambig.
  • Kniphofia rooperi
  • Kniphofia uvaria
  • Kniphofia Bressingham Sunbeam = 'Bresun'
  • Kniphofia 'Bees' Lemon'
  • Kniphofia 'Bees' Sunset'
  • Kniphofia 'Border Ballet'
  • Kniphofia 'Bressingham Comet'
  • Kniphofia 'Brimstone' Bloom
  • Kniphofia 'Cobra'
  • Kniphofia 'Coral Flame'
  • Kniphofia 'Drummore Apricot'
  • Kniphofia 'Elvira' (PBR)
  • Kniphofia 'Fiery Fred'
  • Kniphofia 'Flamenco'
  • Kniphofia 'Goldelse'
  • Kniphofia 'Green Jade'
  • Kniphofia 'Innocence'
  • Kniphofia 'Jenny Bloom'
  • Kniphofia 'John Benary'
  • Kniphofia 'Lemon Popsicle' (PBR) (Popsicle Series)
  • Kniphofia 'Little Maid'
  • Kniphofia 'Mango Popsicle' (PBR) (Popsicle Series)
  • Kniphofia 'Minister Verschuur'
  • Kniphofia 'Nancy's Red'
  • Kniphofia 'Orange Vanilla Popsicle' (PBR) (Popsicle Series)
  • Kniphofia 'Papaya Popsicle' (PBR) (Popsicle Series)
  • Kniphofia 'Penny Rockets'
  • Kniphofia 'Percy's Pride'
  • Kniphofia 'Primulina' Bloom
  • Kniphofia 'Royal Castle'
  • Kniphofia 'Royal Standard'
  • Kniphofia 'Samuel's Sensation' Samuel
  • Kniphofia 'Tetbury Torch' (PBR)
  • Kniphofia 'Timothy'
  • Kniphofia 'Toffee Nosed'
  • Kniphofia 'Vesta'
  • Koeleria glauca
  • Lactuca sativa 'Green Batavian'
  • Lactuca sativa 'Green Frills'
  • Lactuca sativa 'Iceberg'
  • Lactuca sativa 'Little Gem'
  • Lactuca sativa 'Lollo Bionda'
  • Lactuca sativa 'Lollo Rossa'
  • Lactuca sativa 'Musette'
  • Lactuca sativa 'Nansen's Noordpool'
  • Lactuca sativa 'Oak Leaf'
  • Lactuca sativa 'Red Batavian'
  • Lactuca sativa 'Red Little Gem'
  • Lactuca sativa 'Red Oak Leaf'
  • Lactuca sativa 'Red Salad Bowl'
  • Lactuca sativa 'Salad Bowl'
  • Lamium galeobdolon 'Hermann's Pride'
  • Lamium maculatum Golden Anniversary = 'Dellam' (PBR) (v)
  • Lamium maculatum Lami Dark Purple (Lami Series)
  • Lamium maculatum 'Beacon Silver'
  • Lamium maculatum 'Pink Pewter'
  • Lamium maculatum 'Red Nancy'
  • Lamium maculatum 'White Nancy'
  • Lampranthus brownii
  • Lampranthus roseus
  • Lampranthus apricot-flowered
  • Lamprocapnos spectabilis
  • Lamprocapnos spectabilis Valentine = 'Hordival' (PBR)
  • Lamprocapnos spectabilis 'Alba'
  • Lamprocapnos spectabilis 'Gold Heart' (PBR)
  • Lantana 'Dallas Red'
  • Lathyrus latifolius 'Red Pearl'
  • Lathyrus latifolius 'Rosa Perle'
  • Lathyrus latifolius 'White Pearl'
  • Lathyrus vernus
  • Lathyrus vernus 'Alboroseus'
  • Lathyrus vernus purple-flowered
  • Lathyrus vernus 'Rainbow'
  • Laurus nobilis
  • Lavandula angustifolia
  • Lavandula angustifolia Aromatico Blue = 'Lablusa' (PBR)
  • Lavandula angustifolia Aromatico Forte Blue = 'Laa20001'
  • Lavandula angustifolia Little Lady = 'Batlad'
  • Lavandula angustifolia Melissa Lilac = 'Dow4' (PBR)
  • Lavandula angustifolia 'Arctic Snow'
  • Lavandula angustifolia 'Blue Rider'
  • Lavandula angustifolia 'Hidcote'
  • Lavandula angustifolia 'Imperial Gem'
  • Lavandula angustifolia 'Loddon Blue'
  • Lavandula angustifolia 'Loddon Pink'
  • Lavandula angustifolia 'Munstead'
  • Lavandula angustifolia 'Silver Line'
  • Lavandula angustifolia 'Twickel Purple'
  • Lavandula pedunculata subsp. lusitanica
  • Lavandula pedunculata subsp. lusitanica Lusi Purple
  • Lavandula pedunculata subsp. pedunculata
  • Lavandula pedunculata subsp. sampaiana 'Purple Emperor'
  • Lavandula stoechas
  • Lavandula stoechas Bella Lavender = 'Bellav' (Bella Series)
  • Lavandula stoechas Bella Rose = 'Belros' (Bella Series)
  • Lavandula stoechas Javelin Blue = 'Jin Bulle' (Javelin Series)
  • Lavandula stoechas 'Spring-break Princess'
  • Lavandula stoechas subsp. stoechas Lilac Wings = 'Prolil' (PBR)
  • Lavandula stoechas subsp. stoechas f. leucantha 'Snowman'
  • Lavandula stoechas subsp. stoechas 'Provençal'
  • Lavandula stoechas 'Victory'
  • Lavandula viridis
  • Lavandula × chaytoriae 'Sawyers'
  • Lavandula × intermedia Platinum Blonde = 'Momparler' (PBR)
  • Lavandula × intermedia Walberton's Silver Edge = 'Walvera' (v)
  • Lavandula × intermedia 'Edelweiss'
  • Lavandula × intermedia 'Hidcote Giant'
  • Lavandula × intermedia 'Sussex'
  • Lavandula Tiara = 'Fair 10' (PBR)
  • Lavandula 'Bouquet of Roses'
  • Lavandula 'Hazel'
  • Lavandula 'Pukehou'
  • Lavandula 'Regal Splendour' (PBR)
  • Lavandula 'Willow Vale'
  • Lavatera × clementii Red Rum = 'Rigrum' (PBR)
  • Lavatera × clementii Ruby Star = 'Jostar' (PBR)
  • Lavatera × clementii Songbird = 'Jobird' (PBR)
  • Lavatera × clementii 'Barnsley'
  • Lavatera × clementii 'Bredon Springs'
  • Lavatera × clementii 'Burgundy Wine'
  • Lavatera × clementii 'Mary Hope'
  • Lavatera × clementii 'Rosea'
  • Leptospermum scoparium 'Adrianne'
  • Leptospermum scoparium 'Martini'
  • Leptospermum scoparium 'Snow Flurry'
  • Lespedeza thunbergii
  • Lespedeza thunbergii subsp. thunbergii 'White Fountain'
  • Leucanthemum vulgare 'Filigran'
  • Leucanthemum vulgare 'Maikönigin'
  • Leucanthemum × superbum Broadway Lights = 'Leumayel' (PBR)
  • Leucanthemum × superbum Freak! = 'Leuz0001' (PBR)
  • Leucanthemum × superbum White Mountain = 'Gfleuwhmtn' (PBR)
  • Leucanthemum × superbum 'Aglaia' (d)
  • Leucanthemum × superbum 'Alaska'
  • Leucanthemum × superbum 'Amelia'
  • Leucanthemum × superbum 'Banana Cream'
  • Leucanthemum × superbum 'Becky'
  • Leucanthemum × superbum 'Bridal Bouquet' (PBR)
  • Leucanthemum × superbum 'Brightside'
  • Leucanthemum × superbum 'Crazy Daisy'
  • Leucanthemum × superbum 'Esther Read' (d)
  • Leucanthemum × superbum 'Exhibition'
  • Leucanthemum × superbum 'Fiona Coghill' (d)
  • Leucanthemum × superbum 'Ice Star'
  • Leucanthemum × superbum 'LaCrosse' (Ooh La Series)
  • Leucanthemum × superbum 'LaSpider' (Ooh La Series)
  • Leucanthemum × superbum 'Little Miss Muffet'
  • Leucanthemum × superbum 'Polaris'
  • Leucanthemum × superbum 'Real Dream' (PBR) (Realflor Series)
  • Leucanthemum × superbum 'Real Galaxy' (PBR) (Realflor Series)
  • Leucanthemum × superbum 'Real Glory' (Realflor Series)
  • Leucanthemum × superbum 'Real Neat' (Realflor Series)
  • Leucanthemum × superbum 'Silberprinzesschen'
  • Leucanthemum × superbum 'Snowbound'
  • Leucanthemum × superbum 'Snowcap'
  • Leucanthemum × superbum 'Snowdrift'
  • Leucanthemum × superbum 'Sonnenschein'
  • Leucanthemum × superbum 'Starburst' (d)
  • Leucanthemum × superbum 'Sunny Side Up' (PBR)
  • Leucanthemum × superbum 'T.E. Killin' (d)
  • Leucanthemum × superbum 'Victorian Secret' (PBR)
  • Leucanthemum × superbum 'Wirral Supreme' (d)
  • Leucanthemum 'Real Charmer' (PBR) (Realflor Series)
  • Leucanthemum 'Sante'
  • Leucanthemum 'White Knight'
  • Leucojum aestivum
  • Leucojum aestivum 'Gravetye Giant'
  • Leucojum vernum
  • Leucothoe axillaris 'Curly Red' (PBR)
  • Leucothoe Carinella = 'Zebekot'
  • Leucothoe Scarletta = 'Zeblid'
  • Lewisia cotyledon
  • Lewisia nevadensis
  • Lewisia pygmaea
  • Lewisiopsis tweedyi
  • Lewisiopsis tweedyi 'Rosea'
  • Leycesteria formosa
  • Leycesteria formosa Golden Lanterns = 'Notbruce' (PBR)
  • Leycesteria formosa 'Purple Rain'
  • Liatris spicata 'Floristan Violett'
  • Liatris spicata 'Floristan Weiss'
  • Liatris spicata 'Kobold'
  • Libertia chilensis Formosa Group
  • Libertia ixioides 'Goldfinger' (v)
  • Libertia peregrinans
  • Libertia pulchella misapplied
  • Ligularia dentata 'Desdemona'
  • Ligularia dentata 'Othello'
  • Ligularia przewalskii
  • Ligularia wilsoniana
  • Ligularia × yoshizoeana 'Palmatiloba'
  • Ligularia 'Britt Marie Crawford' (PBR)
  • Ligularia 'Gregynog Gold'
  • Ligularia 'Little Rocket' (PBR)
  • Ligularia 'Sungold'
  • Ligularia 'The Rocket'
  • Ligularia 'Zepter'
  • Ligustrum lucidum 'Curly Wurly'
  • Ligustrum ovalifolium 'Aureum' (v)
  • Ligustrum sinense 'Sunshine'
  • Lilium formosanum var. pricei (IXb/a)
  • Lilium martagon var. album (IXc/d)
  • Lilium 'Coldplay' (Colour Carpet Series) (VIIa-b/b-c)
  • Lilium 'Crimson Pixie' (Ia/b)
  • Lilium 'Dark Romance' (Romance Series) (VIIb/b)
  • Lilium 'Lemon Pixie' (Ia/b)
  • Lilium 'Luzia' (VIIa-b/c)
  • Lilium 'Orange Pixie' (Ia/b)
  • Lilium 'Pink Pixie' (PBR) (Ia/b)
  • Lilium 'Reinesse' (Ia/b)
  • Lilium 'Showwinner' (VIIa/b-c)
  • Lilium 'Star Gazer' (VIIa/c)
  • Limonium platyphyllum 'Violetta'
  • Linaria purpurea 'Canon Went'
  • Liquidambar styraciflua 'Andrew Hewson'
  • Liquidambar styraciflua 'Slender Silhouette'
  • Liquidambar styraciflua 'Thea'
  • Liquidambar styraciflua 'Worplesdon'
  • Liriope exiliflora 'Ariaka-janshige' (v)
  • Liriope muscari
  • Liriope muscari Amethyst = 'Liptp'
  • Liriope muscari 'Big Blue'
  • Liriope muscari 'Ingwersen'
  • Liriope muscari 'Royal Purple'
  • Liriope muscari 'Variegata' (v)
  • Lobelia cardinalis 'Bee's Flame'
  • Lobelia cardinalis L. 'Russian Princess' misapplied
  • Lobelia cardinalis 'Queen Victoria'
  • Lobelia siphilitica
  • Lobelia tupa
  • Lobelia × speciosa 'Cranberry Crush'
  • Lobelia × speciosa 'Dark Crusader'
  • Lobelia × speciosa 'Fan Scharlach' (Fan Series)
  • Lobelia × speciosa 'Hadspen Purple' (PBR)
  • Lobelia × speciosa 'Kompliment Scharlach' (Kompliment Series)
  • Lobelia × speciosa 'Monet Moment'
  • Lobelia × speciosa 'Pink Elephant'
  • Lobelia × speciosa 'Sparkling Ruby'
  • Lobelia × speciosa 'Starship Deep Rose' (Starship Series)
  • Lobelia × speciosa 'Starship Scarlet' (Starship Series)
  • Lobelia × speciosa 'Tania'
  • Lobelia 'Compton Pink'
  • Lobelia 'Grape Knee-Hi'
  • Lonicera elisae
  • Lonicera fragrantissima
  • Lonicera henryi
  • Lonicera henryi 'Copper Beauty' (PBR)
  • Lonicera japonica 'Dart's World'
  • Lonicera japonica 'Halliana'
  • Lonicera japonica 'Hall's Prolific'
  • Lonicera japonica var. repens
  • Lonicera maackii
  • Lonicera periclymenum 'Belgica'
  • Lonicera periclymenum 'Graham Thomas'
  • Lonicera periclymenum 'Scentsation' (PBR)
  • Lonicera periclymenum 'Serotina'
  • Lonicera periclymenum 'Sweet Sue'
  • Lonicera × brownii 'Dropmore Scarlet'
  • Lonicera × heckrottii 'Gold Flame' hort.
  • Lonicera × purpusii 'Winter Beauty'
  • Lonicera × tellmanniana
  • Lophomyrtus × ralphii Logan's form (v)
  • Lophomyrtus × ralphii 'Magic Dragon' (PBR) (v)
  • Lophomyrtus × ralphii 'Red Dragon'
  • Loropetalum chinense var. rubrum 'Fire Dance'
  • Lotus hirsutus Little Boy Blue = 'Lisbob' (PBR)
  • Luma apiculata
  • Lupinus arboreus
  • Lupinus arboreus blue-flowered
  • Lupinus arboreus 'Chelsea Blue'
  • Lupinus chamissonis
  • Lupinus 'Beefeater'
  • Lupinus 'Blossom' (PBR)
  • Lupinus 'Cashmere Cream'
  • Lupinus 'Chameleon'
  • Lupinus 'Desert Sun' (PBR)
  • Lupinus 'Gallery Blue' (Gallery Series)
  • Lupinus 'Gallery Pink' (Gallery Series)
  • Lupinus 'Gallery Red' (Gallery Series)
  • Lupinus 'Gallery Rose' (Gallery Series)
  • Lupinus 'Gallery White' (Gallery Series)
  • Lupinus 'Gallery Yellow' (Gallery Series)
  • Lupinus 'Gladiator' (PBR)
  • Lupinus 'King Canute' (PBR)
  • Lupinus 'Magic Lantern'
  • Lupinus 'Manhattan Lights' (PBR)
  • Lupinus 'Masterpiece' (PBR)
  • Lupinus Minarette Group
  • Lupinus 'My Castle' (Band of Nobles Series)
  • Lupinus 'Noble Maiden' (Band of Nobles Series)
  • Lupinus 'Persian Slipper' (PBR)
  • Lupinus 'Polar Princess'
  • Lupinus 'Purple Swirl'
  • Lupinus 'Rachel de Thame'
  • Lupinus 'Red Rum' (PBR)
  • Lupinus 'Saffron' (PBR)
  • Lupinus 'Salmon Star' (PBR)
  • Lupinus 'Tequila Flame' (PBR)
  • Lupinus 'Terracotta'
  • Lupinus 'The Chatelaine' (Band of Nobles Series)
  • Lupinus 'The Governor' (Band of Nobles Series)
  • Lupinus 'The Page' (Band of Nobles Series)
  • Lupinus 'Towering Inferno'
  • Luzula nivea
  • Luzula sylvatica
  • Luzula sylvatica 'Aurea'
  • Luzula sylvatica 'Solar Flair'
  • Luzula sylvatica 'Taggart's Cream' (v)
  • Lychnis chalcedonica
  • Lychnis coronaria
  • Lychnis coronaria Gardeners' World = 'Blych' (d)
  • Lychnis coronaria 'Alba'
  • Lychnis coronaria Atrosanguinea Group
  • Lychnis flos-cuculi Jenny = 'Lychjen' (d)
  • Lychnis flos-cuculi 'Petite Jenny' (d)
  • Lychnis flos-cuculi 'White Robin'
  • Lychnis flos-jovis
  • Lychnis flos-jovis 'Hort's Variety'
  • Lychnis × arkwrightii
  • Lychnis 'Molten Lava'
  • Lysimachia atropurpurea 'Beaujolais'
  • Lysimachia ciliata 'Firecracker'
  • Lysimachia clethroides
  • Lysimachia ephemerum
  • Lysimachia punctata 'Alexander' (v)
  • Lysimachia Candela = 'Innlyscand'
  • Lythrum salicaria 'Blush'
  • Lythrum salicaria 'Feuerkerze'
  • Lythrum salicaria 'Morden Pink'
  • Lythrum salicaria 'Robert'
  • Lythrum salicaria 'Robin'
  • Lythrum salicaria 'Swirl'
  • Lythrum virgatum 'Dropmore Purple'
  • Lythrum virgatum 'Rosy Gem'
  • Lythrum virgatum 'The Rocket'
  • Macleaya cordata (Willd.) R. Br.
  • Magnolia figo
  • Magnolia globosa
  • Magnolia grandiflora 'Bracken's Brown Beauty'
  • Magnolia grandiflora 'Exmouth'
  • Magnolia grandiflora 'Kay Parris'
  • Magnolia laevifolia 'Gail's Favourite'
  • Magnolia laevifolia 'Mini Mouse'
  • Magnolia liliiflora 'Nigra'
  • Magnolia sieboldii
  • Magnolia stellata
  • Magnolia stellata 'Jane Platt'
  • Magnolia stellata 'Royal Star'
  • Magnolia stellata 'Water Lily'
  • Magnolia × loebneri 'Green Mist'
  • Magnolia × loebneri 'Leonard Messel'
  • Magnolia × loebneri 'Merrill'
  • Magnolia × soulangeana
  • Magnolia × soulangeana 'Rustica Rubra'
  • Magnolia 'Butterflies'
  • Magnolia 'Elizabeth'
  • Magnolia 'Genie' (PBR)
  • Magnolia 'Gold Star'
  • Magnolia 'Heaven Scent'
  • Magnolia 'Lois'
  • Magnolia 'Star Wars'
  • Magnolia 'Susan'
  • Magnolia 'Yellow Lantern'
  • Mahonia eurybracteata subsp. ganpinensis 'Soft Caress'
  • Mahonia japonica
  • Mahonia nitens 'Cabaret' (PBR)
  • Mahonia × media 'Charity'
  • Mahonia × media 'Lionel Fortescue'
  • Mahonia × media 'Winter Sun'
  • Mahonia Sioux = 'Bokrasio' (PBR)
  • Mahonia 'Arthur Menzies'
  • Maianthemum stellatum
  • Malus domestica 'Blenheim Orange' (C/D)
  • Malus domestica 'Bramley's Seedling' (C)
  • Malus domestica 'Christmas Pippin' (PBR) (D)
  • Malus domestica 'Cox's Orange Pippin' (D)
  • Malus domestica 'Herefordshire Russet' (PBR) (D)
  • Malus domestica 'James Grieve' (D)
  • Malus domestica 'Red Devil' (D)
  • Malus domestica 'Red Falstaff' (PBR) (D)
  • Malus domestica 'Scrumptious' (PBR) (D)
  • Malus × moerlandsii 'Profusion'
  • Malus × robusta 'Red Sentinel'
  • Malus × zumi 'Golden Hornet'
  • Malus 'John Downie' (C)
  • Malva alcea 'Royal Flush'
  • Malva moschata f. alba
  • Malva moschata 'Rosea'
  • Matteuccia orientalis
  • Matteuccia pensylvanica
  • Matteuccia struthiopteris
  • Matteuccia struthiopteris 'Jumbo'
  • Meconopsis baileyi 'Hensol Violet'
  • Meconopsis baileyi var. alba
  • Meconopsis × sheldonii ambig.
  • Meconopsis (Fertile Blue Group) 'Lingholm'
  • Meconopsis (Infertile Blue Group) 'Slieve Donard'
  • Melianthus major
  • Melittis melissophyllum 'Royal Velvet Distinction' (PBR)
  • Mentha spicata 'Tashkent'
  • Mentha × piperita f. citrata 'Chocolate'
  • Microlepia strigosa
  • Microlepia strigosa 'MacFaddeniae'
  • Miscanthus nepalensis
  • Miscanthus sacchariflorus ambig.
  • Miscanthus sinensis 'Abundance'
  • Miscanthus sinensis 'Adagio'
  • Miscanthus sinensis 'China'
  • Miscanthus sinensis 'Ferner Osten'
  • Miscanthus sinensis 'Flamingo'
  • Miscanthus sinensis 'Gnome'
  • Miscanthus sinensis 'Gold Bar' (PBR) (v)
  • Miscanthus sinensis 'Gold Breeze' (PBR)
  • Miscanthus sinensis 'Gracillimus'
  • Miscanthus sinensis 'Graziella'
  • Miscanthus sinensis 'Hermann Müssel'
  • Miscanthus sinensis 'Hinjo' (v)
  • Miscanthus sinensis 'Kaskade'
  • Miscanthus sinensis 'Kleine Fontäne'
  • Miscanthus sinensis 'Kleine Silberspinne'
  • Miscanthus sinensis 'Krater'
  • Miscanthus sinensis 'Malepartus'
  • Miscanthus sinensis 'Morning Light' (v)
  • Miscanthus sinensis 'Nippon'
  • Miscanthus sinensis 'Red Chief'
  • Miscanthus sinensis 'Red Meister'
  • Miscanthus sinensis 'Rotsilber'
  • Miscanthus sinensis 'Silberfeder'
  • Miscanthus sinensis 'Sioux'
  • Miscanthus sinensis 'Strictus' (v)
  • Miscanthus sinensis var. condensatus 'Cabaret' (v)
  • Miscanthus sinensis var. condensatus 'Cosmopolitan' (v)
  • Miscanthus sinensis 'Variegatus' (v)
  • Miscanthus sinensis 'Yaku-jima'
  • Miscanthus sinensis 'Yakushima Dwarf'
  • Miscanthus sinensis 'Zebrinus' (v)
  • Miscanthus transmorrisonensis
  • Miscanthus 'Purpurascens'
  • Molinia caerulea
  • Molinia caerulea subsp. arundinacea 'Karl Foerster'
  • Molinia caerulea subsp. arundinacea 'Skyracer'
  • Molinia caerulea subsp. arundinacea 'Transparent'
  • Molinia caerulea subsp. arundinacea 'Windspiel'
  • Molinia caerulea subsp. caerulea 'Edith Dudszus'
  • Molinia caerulea subsp. caerulea 'Heidebraut'
  • Molinia caerulea subsp. caerulea 'Moorhexe'
  • Molinia caerulea subsp. caerulea 'Strahlenquelle'
  • Molinia caerulea subsp. caerulea 'Variegata' (v)
  • Moltkia petraea
  • Moltkia × intermedia
  • Monarda didyma Balmy Lilac = 'Balbalmac' (PBR) (Balmy Series)
  • Monarda didyma Balmy Purple = 'Balbalmurp' (PBR) (Balmy Series)
  • Monarda didyma 'Cranberry Lace' (PBR)
  • Monarda didyma 'Pink Lace' (PBR)
  • Monarda didyma 'Purple Lace' (PBR)
  • Monarda 'Aquarius'
  • Monarda 'Balance'
  • Monarda 'Beauty of Cobham'
  • Monarda 'Cambridge Scarlet'
  • Monarda 'Croftway Pink'
  • Monarda 'Elsie's Lavender'
  • Monarda 'Fireball' (PBR)
  • Monarda 'Gardenview Scarlet'
  • Monarda 'Jacob Cline'
  • Monarda 'Mahogany'
  • Monarda 'Marshall's Delight'
  • Monarda 'Melissa'
  • Monarda 'Othello'
  • Monarda 'Prärienacht'
  • Monarda 'Raspberry Wine'
  • Monarda 'Ruby Glow'
  • Monarda 'Sagittarius'
  • Monarda 'Scorpion'
  • Monarda 'Squaw'
  • Monarda 'Violet Queen'
  • Morina longifolia
  • Muscari armeniacum
  • Muscari armeniacum 'Atlantic'
  • Muscari armeniacum 'Peppermint'
  • Muscari armeniacum 'Siberian Tiger'
  • Muscari latifolium
  • Muscari 'Big Smile'
  • Myosotidium hortensia
  • Myrtus communis
  • Myrtus communis subsp. tarentina
  • Myrtus communis 'Variegata' (v)
  • Nandina domestica 'Fire Power'
  • Nandina domestica 'Gulf Stream'
  • Nandina domestica 'Richmond'
  • Nandina domestica 'Seika' (PBR)
  • Narcissus bulbocodium (13)
  • Narcissus bulbocodium Golden Bells Group (10)
  • Narcissus bulbocodium subsp. bulbocodium var. citrinus (13)
  • Narcissus bulbocodium subsp. obesus 'Diamond Ring' (10)
  • Narcissus bulbocodium subsp. praecox (13)
  • Narcissus cyclamineus (13)
  • Narcissus lobularis (Haw.) Schult. & Schult. f. (13)
  • Narcissus romieuxii (13)
  • Narcissus 'Cheerfulness' (4)
  • Narcissus 'Early Sensation' (1)
  • Narcissus 'February Gold' (6)
  • Narcissus 'Geranium' (8)
  • Narcissus 'Jetfire' (6)
  • Narcissus 'Jumblie' (12)
  • Narcissus 'Minnow' (8)
  • Narcissus 'Paper White Grandiflorus' (8)
  • Narcissus 'Rip van Winkle' (4)
  • Narcissus 'Segovia' (3)
  • Narcissus 'Tête-À-tête' (12)
  • Narcissus 'Topolino' (1)
  • Narcissus 'Yellow Cheerfulness' (4)
  • Nemesia 'Wisley Vanilla'
  • Nepeta govaniana
  • Nepeta grandiflora 'Bramdean'
  • Nepeta grandiflora 'Dawn to Dusk'
  • Nepeta grandiflora 'Summer Magic' (PBR)
  • Nepeta kubanica
  • Nepeta nervosa 'Blue Moon'
  • Nepeta nervosa 'Pink Cat'
  • Nepeta racemosa 'Snowflake'
  • Nepeta racemosa 'Walker's Low'
  • Nepeta sibirica
  • Nepeta sibirica 'Souvenir d'André Chaudron'
  • Nepeta subsessilis
  • Nepeta subsessilis 'Sweet Dreams'
  • Nepeta × faassenii
  • Nepeta × faassenii Junior Walker = 'Novanepjun' (PBR)
  • Nepeta × faassenii 'Blue Wonder'
  • Nepeta × faassenii 'Crystal Cloud'
  • Nepeta × faassenii 'Kit Cat'
  • Nepeta 'Blue Dragon'
  • Nepeta 'Dropmore'
  • Nepeta 'Leeds Castle'
  • Nepeta 'Purple Haze' (PBR)
  • Nepeta 'Six Hills Giant'
  • Nerine bowdenii
  • Nerine bowdenii 'Marjorie'
  • Nerine 'Pink Triumph'
  • Nyssa sylvatica 'Wisley Bonfire' (m)
  • Ocimum basilicum var. purpurascens 'Red Rubin'
  • Oenothera fruticosa 'Fyrverkeri'
  • Oenothera lindheimeri (G)
  • Oenothera lindheimeri Freefolk Rosy = 'Harrfolk' (G/v)
  • Oenothera lindheimeri Gaudi Pink = 'Florgaucompi' (G)
  • Oenothera lindheimeri Gaudi Red = 'Florgaured' (G)
  • Oenothera lindheimeri Gaudi Rose = 'Florgaucomro' (PBR) (G)
  • Oenothera lindheimeri Karalee White = 'Nugauwhite' (PBR) (G)
  • Oenothera lindheimeri Papillon = 'Nugaupapil' (PBR) (G)
  • Oenothera lindheimeri Pink Fountain = 'Walgaupf' (G)
  • Oenothera lindheimeri Rosyjane = 'Harrosy' (PBR) (G)
  • Oenothera lindheimeri Snow Fountain = 'Walsnofou' (G)
  • Oenothera lindheimeri Belleza Series (G)
  • Oenothera lindheimeri 'Corrie's Gold' (G/v)
  • Oenothera lindheimeri 'Passionate Blush' (PBR) (G)
  • Oenothera lindheimeri 'Passionate Rainbow' (PBR) (G/v)
  • Oenothera lindheimeri 'Summer Breeze' (G)
  • Oenothera lindheimeri 'The Bride' (G)
  • Oenothera speciosa 'Siskiyou'
  • Oenothera 'Summer Sun'
  • Omphalodes cappadocica 'Cherry Ingram'
  • Omphalodes verna
  • Onoclea sensibilis
  • Onopordum acanthium
  • Onychium japonicum
  • Ophiopogon planiscapus Black Beard = 'Yapard' (PBR)
  • Ophiopogon planiscapus 'Kokuryu'
  • Origanum laevigatum 'Herrenhausen'
  • Origanum laevigatum 'Hopleys'
  • Origanum vulgare 'Aureum'
  • Origanum vulgare 'Compactum'
  • Origanum vulgare 'Country Cream' (v)
  • Origanum vulgare 'Thumble's Variety'
  • Ornithogalum umbellatum
  • Orostachys spinosa
  • Osmanthus delavayi
  • Osmanthus heterophyllus 'Goshiki' (v)
  • Osmanthus heterophyllus 'Gulftide'
  • Osmanthus heterophyllus 'Purple Shaft'
  • Osmanthus × burkwoodii
  • Osmunda cinnamomea
  • Osmunda claytoniana
  • Osmunda regalis
  • Osmunda regalis 'Cristata'
  • Osmunda regalis 'Purpurascens'
  • Osmunda regalis var. spectabilis
  • Osteospermum jucundum
  • Osteospermum jucundum var. compactum
  • Osteospermum 'Cannington Roy'
  • Osteospermum 'Lady Leitrim'
  • Osteospermum 'Nairobi Purple'
  • Osteospermum 'Stardust'
  • Oxalis adenophylla
  • Oxalis enneaphylla
  • Oxalis perdicaria
  • Pachysandra terminalis 'Green Carpet'
  • Pachysandra terminalis 'Green Sheen'
  • Pachysandra terminalis 'Variegata' (v)
  • Paeonia cambessedesii
  • Paeonia cambessedesii × daurica subsp. mlokosewitschii
  • Paeonia daurica subsp. mlokosewitschii
  • Paeonia lactiflora Kiev
  • Paeonia lactiflora London
  • Paeonia lactiflora Madrid
  • Paeonia lactiflora Rome
  • Paeonia lactiflora 'Agida'
  • Paeonia lactiflora 'Antwerpen'
  • Paeonia lactiflora 'Avalanche'
  • Paeonia lactiflora 'Barrington Belle'
  • Paeonia lactiflora 'Black Beauty'
  • Paeonia lactiflora 'Border Gem'
  • Paeonia lactiflora 'Bouquet Perfect'
  • Paeonia lactiflora 'Bowl of Beauty'
  • Paeonia lactiflora 'Bunker Hill'
  • Paeonia lactiflora 'Catharina Fontijn'
  • Paeonia lactiflora 'Claire Dubois'
  • Paeonia lactiflora 'Doctor Alexander Fleming'
  • Paeonia lactiflora 'Doreen'
  • Paeonia lactiflora 'Duchesse de Nemours'
  • Paeonia lactiflora 'Edulis Superba'
  • Paeonia lactiflora 'Festiva Maxima'
  • Paeonia lactiflora 'Gardenia'
  • Paeonia lactiflora 'Inspecteur Lavergne'
  • Paeonia lactiflora 'Kansas'
  • Paeonia lactiflora 'Karl Rosenfield'
  • Paeonia lactiflora 'Kelway's Glorious'
  • Paeonia lactiflora 'Krinkled White'
  • Paeonia lactiflora 'Lord Kitchener'
  • Paeonia lactiflora 'Madame Calot'
  • Paeonia lactiflora 'Pecher'
  • Paeonia lactiflora 'President Franklin D. Roosevelt'
  • Paeonia lactiflora 'Raspberry Sundae'
  • Paeonia lactiflora 'Santa Fe'
  • Paeonia lactiflora 'Sarah Bernhardt'
  • Paeonia lactiflora 'Shirley Temple'
  • Paeonia lactiflora 'Sword Dance'
  • Paeonia lactiflora 'Vogue'
  • Paeonia lactiflora 'White Wings'
  • Paeonia lactiflora 'Zi Yu Nu'
  • Paeonia officinalis 'Anemoniflora Rosea'
  • Paeonia peregrina 'Rosabella'
  • Paeonia × festiva 'Alba Plena' (d)
  • Paeonia × lemoinei 'Souvenir de Maxime Cornu' (S)
  • Paeonia × smouthii
  • Paeonia × suffruticosa 'Hana-kisoi' (S)
  • Paeonia × suffruticosa 'Kaow' (S)
  • Paeonia × suffruticosa 'Shimadaijin'
  • Paeonia × suffruticosa 'Taiyo' (S)
  • Paeonia 'Bartzella' (d)
  • Paeonia 'Blaze'
  • Paeonia 'Flame'
  • Paeonia 'Garden Treasure'
  • Paeonia 'Hoki'
  • Paeonia 'Julia Rose'
  • Paeonia 'Pastel Splendor'
  • Panicum virgatum 'Dallas Blues'
  • Panicum virgatum 'Hänse Herms'
  • Panicum virgatum 'Heavy Metal'
  • Panicum virgatum 'Heiliger Hain'
  • Panicum virgatum 'Northwind'
  • Panicum virgatum 'Prairie Sky'
  • Panicum virgatum 'Rehbraun'
  • Panicum virgatum 'Shenandoah'
  • Panicum virgatum 'Squaw'
  • Panicum virgatum 'Warrior'
  • Papaver alboroseum
  • Papaver alpinum
  • Papaver cambricum
  • Papaver miyabeanum
  • Papaver nudicaule Champagne Bubbles Group
  • Papaver nudicaule Gartenzwerg Group
  • Papaver (Oriental Group) 'Brilliant'
  • Papaver (Oriental Group) 'Carneum'
  • Papaver (Oriental Group) 'Harvest Moon' (d)
  • Papaver (Oriental Group) 'Manhattan' (New York Series)
  • Papaver (Oriental Group) 'Papillon' (PBR)
  • Papaver (Oriental Group) 'Prinzessin Victoria Louise'
  • Papaver (Oriental Group) 'Raspberry Brûlée'
  • Papaver (Oriental Group) 'Royal Wedding'
  • Papaver (Oriental Group) 'Snow Goose'
  • Papaver 'Matador' (PBR)
  • Papaver 'Moondance'
  • Parahebe catarractae
  • Parahebe catarractae 'Avalanche' (PBR)
  • Parahebe catarractae 'Baby Blue'
  • Parahebe catarractae 'Delight'
  • Parahebe 'Snow Clouds'
  • Parrotia persica
  • Parrotia persica 'Vanessa'
  • Parthenocissus henryana
  • Parthenocissus quinquefolia
  • Parthenocissus quinquefolia Red Wall = 'Troki'
  • Parthenocissus quinquefolia 'Yellow Wall' (PBR)
  • Parthenocissus tricuspidata 'Veitchii'
  • Passiflora caerulea
  • Passiflora caerulea White Lightning = 'Yanpas' (PBR)
  • Passiflora caerulea 'Constance Eliott'
  • Passiflora 'Damsel's Delight'
  • Passiflora 'Purple Haze'
  • Pastinaca sativa 'Gladiator'
  • Pellaea rotundifolia
  • Pennisetum advena 'Fireworks' (PBR) (v)
  • Pennisetum advena 'Rubrum'
  • Pennisetum alopecuroides
  • Pennisetum alopecuroides 'Dark Desire'
  • Pennisetum alopecuroides f. viridescens
  • Pennisetum alopecuroides 'Gelbstiel'
  • Pennisetum alopecuroides 'Hameln'
  • Pennisetum alopecuroides 'Little Bunny'
  • Pennisetum alopecuroides 'Red Head'
  • Pennisetum macrourum
  • Pennisetum massaicum 'Red Bunny Tails'
  • Pennisetum orientale
  • Pennisetum orientale 'Flamingo'
  • Pennisetum orientale 'Karley Rose' (PBR)
  • Pennisetum orientale 'Shogun'
  • Pennisetum thunbergii 'Red Buttons'
  • Pennisetum villosum
  • Pennisetum 'Fairy Tails'
  • Penstemon barbatus 'Pinacolada Dark Rose' (Pinacolada Series)
  • Penstemon barbatus 'Pinacolada Rosy Red' (Pinacolada Series)
  • Penstemon barbatus Pinacolada Series
  • Penstemon barbatus 'Pinacolada White' (Pinacolada Series)
  • Penstemon campanulatus
  • Penstemon digitalis 'Husker Red'
  • Penstemon digitalis 'Mystica'
  • Penstemon hartwegii 'Picotee Red'
  • Penstemon heterophyllus 'Catherine de la Mare'
  • Penstemon heterophyllus 'Electric Blue'
  • Penstemon heterophyllus 'Heavenly Blue'
  • Penstemon pinifolius
  • Penstemon pinifolius 'Mersea Yellow'
  • Penstemon Etna = 'Yatna' (Volcano Series)
  • Penstemon Phoenix Appleblossom 09 = 'Peni Ablos09' (Phoenix Series)
  • Penstemon Phoenix Magenta 09 = 'Peni Mag09' (Phoenix Series)
  • Penstemon Phoenix Pink = 'Pheni Pinka' (Phoenix Series)
  • Penstemon Phoenix Red = 'Pheni Reeda' (PBR) (Phoenix Series)
  • Penstemon Phoenix Violet 09 = 'Peni Vio09' (PBR) (Phoenix Series)
  • Penstemon Vesuvius = 'Yasius' (Volcano Series)
  • Penstemon 'Alice Hindley'
  • Penstemon 'Andenken an Friedrich Hahn'
  • Penstemon 'Apple Blossom'
  • Penstemon 'Arabesque Appleblossom'
  • Penstemon 'Arabesque Pink'
  • Penstemon 'Arabesque Red'
  • Penstemon 'Arabesque Violet'
  • Penstemon 'Blackbird' (Bird Series)
  • Penstemon 'Blueberry Taffy' (PBR)
  • Penstemon 'Boysenberry Taffy' (PBR)
  • Penstemon 'Dark Towers' (PBR)
  • Penstemon 'Grape Taffy' (PBR)
  • Penstemon 'Hewell Pink Bedder'
  • Penstemon 'Hidcote Pink'
  • Penstemon 'Hot Pink Riding Hood' (PBR) (Riding Hood Series)
  • Penstemon 'King George V'
  • Penstemon Mexicali hybrids 'Carillo Purple' (Carillo Series)
  • Penstemon Mexicali hybrids 'Carillo Red' (Carillo Series)
  • Penstemon 'Pensham Amelia Jane' (Pensham Series)
  • Penstemon 'Pensham Czar' (Pensham Series)
  • Penstemon 'Pensham Laura' (Pensham Series)
  • Penstemon 'Pensham Plum Jerkum' (Pensham Series)
  • Penstemon 'Pensham Wedding Day' (Pensham Series)
  • Penstemon 'Purple Bedder'
  • Penstemon 'Purple Passion'
  • Penstemon 'Purple Riding Hood' (PBR) (Riding Hood Series)
  • Penstemon 'Raven' (Bird Series)
  • Penstemon 'Red Riding Hood' (PBR) (Riding Hood Series)
  • Penstemon 'Rich Ruby'
  • Penstemon 'Schoenholzeri'
  • Penstemon 'Sour Grapes' M. Fish
  • Penstemon 'Watermelon Taffy' (PBR) (Taffy Series)
  • Penstemon 'White Bedder'
  • Persicaria affinis 'Darjeeling Red'
  • Persicaria affinis 'Donald Lowndes'
  • Persicaria affinis 'Superba'
  • Persicaria amplexicaulis Orange Field = 'Orangofield' (PBR)
  • Persicaria amplexicaulis Taurus = 'Blotau'
  • Persicaria amplexicaulis 'Alba'
  • Persicaria amplexicaulis 'Atrosanguinea'
  • Persicaria amplexicaulis 'Blackfield' (PBR)
  • Persicaria amplexicaulis 'Fat Domino' (PBR)
  • Persicaria amplexicaulis 'Firetail'
  • Persicaria amplexicaulis 'Inverleith'
  • Persicaria amplexicaulis 'Pink Knot'
  • Persicaria amplexicaulis 'Rosea'
  • Persicaria bistorta 'Hohe Tatra'
  • Persicaria bistorta subsp. carnea
  • Persicaria bistorta 'Superba'
  • Persicaria microcephala 'Red Dragon' (PBR)
  • Persicaria milletii
  • Persicaria virginiana (Variegated Group) 'Painter's Palette' (v)
  • Petroselinum crispum 'Moss Curled'
  • Peucedanum verticillare
  • Phalaris arundinacea var. picta 'Feesey' (v)
  • Phalaris arundinacea var. picta 'Picta' (v)
  • Phaseolus coccineus 'Enorma'
  • Phaseolus coccineus 'Hestia'
  • Phaseolus coccineus 'Moonlight' (PBR)
  • Phaseolus coccineus 'Polestar'
  • Phaseolus coccineus 'White Lady' (PBR)
  • Phaseolus vulgaris 'Blue Lake'
  • Phaseolus vulgaris 'Koala' (PBR)
  • Phaseolus vulgaris 'Safari'
  • Phaseolus vulgaris 'Sprite'
  • Phegopteris decursive-pinnata
  • Philadelphus maculatus 'Sweet Clare'
  • Philadelphus 'Belle Étoile'
  • Philadelphus 'Innocence' (v)
  • Philadelphus 'Manteau d'Hermine' (d)
  • Philadelphus 'Minnesota Snowflake' (d)
  • Philadelphus 'Virginal' (d)
  • Phleum phleoides
  • Phlomis cashmeriana
  • Phlomis longifolia var. bailanica
  • Phlomis purpurea
  • Phlomis russeliana
  • Phlomis samia L.
  • Phlox adsurgens 'Wagon Wheel'
  • Phlox carolina 'Miss Lingard'
  • Phlox divaricata 'Clouds of Perfume'
  • Phlox divaricata 'Dirigo Ice'
  • Phlox divaricata 'May Breeze'
  • Phlox divaricata subsp. laphamii 'Chattahoochee'
  • Phlox douglasii 'Crackerjack'
  • Phlox douglasii 'Eva'
  • Phlox douglasii 'Ochsenblut'
  • Phlox douglasii 'Waterloo'
  • Phlox douglasii 'White Admiral'
  • Phlox maculata 'Alpha'
  • Phlox maculata 'Natascha'
  • Phlox paniculata Adessa Pink Star (Adessa Series)
  • Phlox paniculata Adessa Special Purple Star (Adessa Series)
  • Phlox paniculata Peacock Cherry Red (Peacock Series)
  • Phlox paniculata Peacock Lilac (Peacock Series)
  • Phlox paniculata Peacock Neon Purple (Peacock Series)
  • Phlox paniculata Peacock Purple Bicolor (Peacock Series)
  • Phlox paniculata Peacock White (Peacock Series)
  • Phlox paniculata Pink Eye Flame = 'Barthirtyfive' (PBR)
  • Phlox paniculata Purple Eye Flame = 'Barthirtythree' (PBR)
  • Phlox paniculata White Flame = 'Bartwentynine' (PBR)
  • Phlox paniculata 'Blue Boy'
  • Phlox paniculata 'Blue Paradise'
  • Phlox paniculata 'Bright Eyes'
  • Phlox paniculata 'Cheriton'
  • Phlox paniculata 'Chintz'
  • Phlox paniculata 'Düsterlohe'
  • Phlox paniculata 'Danielle'
  • Phlox paniculata 'David'
  • Phlox paniculata 'David's Lavender'
  • Phlox paniculata 'Eva Cullum'
  • Phlox paniculata 'Eva Foerster'
  • Phlox paniculata 'Eventide'
  • Phlox paniculata 'Franz Schubert'
  • Phlox paniculata 'Grey Lady'
  • Phlox paniculata 'Juliglut'
  • Phlox paniculata 'Katherine'
  • Phlox paniculata 'Kirchenfürst'
  • Phlox paniculata 'Lilac Time'
  • Phlox paniculata 'Mary Christine' (v)
  • Phlox paniculata 'Miss Pepper'
  • Phlox paniculata 'Mount Fuji'
  • Phlox paniculata 'Norah Leigh' (v)
  • Phlox paniculata 'Rembrandt'
  • Phlox paniculata 'Sandringham'
  • Phlox paniculata 'Septemberglut'
  • Phlox paniculata 'Starfire'
  • Phlox paniculata 'Uspekh'
  • Phlox paniculata 'Velvet Flame'
  • Phlox paniculata 'White Admiral'
  • Phlox subulata Early Spring Purple = 'Barseventyfour' (PBR) (Early Spring Series)
  • Phlox subulata 'Alexander's Surprise'
  • Phlox subulata 'Amazing Grace'
  • Phlox subulata 'Bavaria'
  • Phlox subulata 'Bonita'
  • Phlox subulata 'Emerald Cushion Blue'
  • Phlox subulata 'McDaniel's Cushion'
  • Phlox subulata 'Nettleton Variation' (v)
  • Phlox subulata 'Purple Beauty'
  • Phlox subulata 'Tamaongalei'
  • Phlox subulata 'Temiskaming'
  • Phlox Lilac Flame = 'Barten' (PBR)
  • Phlox Purple Flame = 'Barfourteen' (PBR) (Flame Series)
  • Phlox 'Kelly's Eye'
  • Phlox 'Pride of Rochester'
  • Phlox 'White Kimono'
  • Phlox 'Zwergenteppich'
  • Phormium cookianum subsp. hookeri 'Cream Delight' (v)
  • Phormium cookianum subsp. hookeri 'Tricolor' (v)
  • Phormium 'Apricot Queen' (v)
  • Phormium 'Black Adder' (PBR)
  • Phormium 'Bronze Baby'
  • Phormium 'Evening Glow' (v)
  • Phormium 'Gold Ray' (v)
  • Phormium 'Jester' (v)
  • Phormium 'Maori Queen' (v)
  • Phormium 'Pink Stripe' (v)
  • Phormium 'Sundowner' (v)
  • Phormium 'Yellow Wave' (v)
  • Photinia × fraseri Pink Marble = 'Cassini' (v)
  • Photinia × fraseri 'Little Red Robin'
  • Photinia × fraseri 'Red Robin'
  • Phygelius aequalis 'Trewidden Pink'
  • Phygelius × rectus Somerford Funfair Wine = 'Yapwin' (Somerford Funfair Series)
  • Phygelius × rectus 'Salmon Leap'
  • Phyllostachys aurea
  • Phyllostachys aureosulcata f. aureocaulis
  • Physalis alkekengi var. franchetii
  • Physalis alkekengi var. franchetii 'Gigantea'
  • Physocarpus opulifolius Angel Gold = 'Minange' (PBR)
  • Physocarpus opulifolius Diable D'Or = 'Mindia' (PBR)
  • Physocarpus opulifolius Lady in Red = 'Tuilad' (PBR)
  • Physocarpus opulifolius 'Diabolo' (PBR)
  • Physostegia virginiana 'Crown of Snow'
  • Physostegia virginiana 'Miss Manners'
  • Physostegia virginiana 'Rosea'
  • Physostegia virginiana var. speciosa 'Bouquet Rose'
  • Physostegia virginiana 'Vivid'
  • Pieris japonica 'Carnaval' (v)
  • Pieris japonica 'Katsura' (PBR)
  • Pieris japonica 'Little Heath' (v)
  • Pieris japonica 'Mountain Fire'
  • Pieris japonica 'Passion' (PBR)
  • Pieris japonica 'Ralto' (PBR)
  • Pieris japonica 'Variegata' (Carrière) Bean (v)
  • Pieris 'Flaming Silver' (v)
  • Pieris 'Forest Flame'
  • Pisum sativum 'Onward'
  • Pisum sativum 'Oregon Sugar Pod'
  • Pisum sativum 'Shiraz'
  • Pisum sativum 'Sugar Snap'
  • Pittosporum eugenioides 'Variegatum' (v)
  • Pittosporum tenuifolium 'Abbotsbury Gold' (f/v)
  • Pittosporum tenuifolium 'Elizabeth' (m/v)
  • Pittosporum tenuifolium 'Gold Star'
  • Pittosporum tenuifolium 'Golden King'
  • Pittosporum tenuifolium 'Golf Ball' (PBR)
  • Pittosporum tenuifolium 'Irene Paterson' (m/v)
  • Pittosporum tenuifolium 'Marjory Channon' (v)
  • Pittosporum tenuifolium 'Oliver Twist'
  • Pittosporum tenuifolium 'Pompom'
  • Pittosporum tenuifolium 'Purpureum' (m)
  • Pittosporum tenuifolium 'Silver Queen' (f/v)
  • Pittosporum tenuifolium 'Silver Sheen' (m)
  • Pittosporum tenuifolium 'Tandara Gold' (v)
  • Pittosporum tenuifolium 'Tom Thumb'
  • Pittosporum tenuifolium 'Variegatum' (m/v)
  • Pittosporum tenuifolium 'Warnham Gold' (m)
  • Pittosporum tenuifolium 'Wrinkled Blue'
  • Pittosporum 'Arundel Green' (f)
  • Pittosporum 'Collaig Silver'
  • Pittosporum 'Garnettii' (v)
  • Platycodon grandiflorus 'Astra Blue' (Astra Series)
  • Pleioblastus simonii
  • Pleioblastus simonii 'Variegatus' (v)
  • Polemonium caeruleum
  • Polemonium caeruleum Brise d'Anjou = 'Blanjou' (PBR) (v)
  • Polemonium caeruleum subsp. caeruleum f. album
  • Polemonium reptans 'Jacob's Gold' (v)
  • Polemonium reptans 'Stairway to Heaven' (PBR) (v)
  • Polemonium yezoense var. hidakanum Bressingham Purple = 'Polbress'
  • Polemonium yezoense var. hidakanum 'Purple Rain'
  • Polemonium 'Heaven Scent' (PBR)
  • Polemonium 'Lambrook Mauve'
  • Polemonium 'Northern Lights'
  • Polygala calcarea 'Lillet'
  • Polygonatum biflorum
  • Polygonatum odoratum var. pluriflorum 'Variegatum' (v)
  • Polygonatum × hybridum
  • Polygonatum × hybridum 'Striatum' (v)
  • Polypodium pseudoaureum 'Virginia Blue'
  • Polypodium scouleri
  • Polypodium vulgare
  • Polystichum acrostichoides
  • Polystichum aculeatum
  • Polystichum braunii
  • Polystichum makinoi
  • Polystichum munitum
  • Polystichum polyblepharum
  • Polystichum rigens
  • Polystichum setiferum
  • Polystichum setiferum (Congestum Group) 'Congestum'
  • Polystichum setiferum (Divisilobum Group) 'Dahlem'
  • Polystichum setiferum (Divisilobum Group) 'Divisilobum Wollaston'
  • Polystichum setiferum (Divisilobum Group) 'Herrenhausen'
  • Polystichum setiferum (Plumosomultilobum Group) 'Plumosomultilobum Densum'
  • Polystichum setiferum Acutilobum Group
  • Polystichum setiferum Plumosum Group
  • Polystichum setiferum 'Pulcherrimum Bevis'
  • Polystichum tsussimense
  • Polystichum tsussimense 'K Rex'
  • Polystichum × dycei
  • Potentilla atrosanguinea
  • Potentilla fruticosa Danny Boy = 'Lissdan' (PBR)
  • Potentilla fruticosa Mango Tango = 'Uman' (PBR)
  • Potentilla fruticosa Marian Red Robin = 'Marrob' (PBR)
  • Potentilla fruticosa Princess = 'Blink'
  • Potentilla fruticosa 'Abbotswood'
  • Potentilla fruticosa 'Beesii'
  • Potentilla fruticosa 'Goldfinger'
  • Potentilla fruticosa 'Groneland'
  • Potentilla fruticosa 'Katherine Dykes'
  • Potentilla fruticosa 'Limelight'
  • Potentilla fruticosa 'Medicine Wheel Mountain'
  • Potentilla fruticosa 'Pink Beauty' (PBR)
  • Potentilla fruticosa 'Primrose Beauty'
  • Potentilla fruticosa 'Red Ace'
  • Potentilla fruticosa 'Red Lady' (PBR)
  • Potentilla fruticosa 'Sommerflor'
  • Potentilla fruticosa 'Tangerine'
  • Potentilla fruticosa 'Tilford Cream'
  • Potentilla megalantha
  • Potentilla nepalensis
  • Potentilla nepalensis 'Miss Willmott'
  • Potentilla nepalensis 'Shogran'
  • Potentilla thurberi
  • Potentilla thurberi 'Monarch's Velvet'
  • Potentilla × tonguei
  • Potentilla 'Arc-en-ciel'
  • Potentilla 'Blazeaway'
  • Potentilla 'Esta Ann'
  • Potentilla 'Etna'
  • Potentilla 'Flambeau' (d)
  • Potentilla 'Flamenco'
  • Potentilla 'Gibson's Scarlet'
  • Potentilla 'Monsieur Rouillard' (d)
  • Potentilla 'William Rollisson'
  • Potentilla 'Yellow Queen'
  • Primula auricula L. (Au)
  • Primula auricula misapplied (Au)
  • Primula beesiana (Pf)
  • Primula bulleyana (Pf)
  • Primula denticulata (De)
  • Primula denticulata lilac-flowered (De)
  • Primula denticulata 'Rubin' (De)
  • Primula denticulata var. alba (De)
  • Primula florindae (Si)
  • Primula japonica 'Apple Blossom' (Pf)
  • Primula japonica 'Miller's Crimson' (Pf)
  • Primula japonica 'Postford White' (Pf)
  • Primula juliae (Pr)
  • Primula marginata (Au)
  • Primula marginata 'Alba' (Au)
  • Primula marginata 'Beatrice Lascaris' (Au)
  • Primula marginata dwarf (Au)
  • Primula marginata 'Laciniata' (Au)
  • Primula poissonii (Pf)
  • Primula sieboldii (Co)
  • Primula sieboldii 'Blue Lagoon' (Co)
  • Primula sieboldii 'Frilly Blue' (Co)
  • Primula sieboldii 'Geisha Girl' (Co)
  • Primula sieboldii 'Seraphim' (Co)
  • Primula veris (Pr)
  • Primula vialii (So)
  • Primula vulgaris (Pr/Prim)
  • Primula vulgaris subsp. sibthorpii (Pr/Prim)
  • Primula × bulleesiana (Pf)
  • Primula × pubescens (Au)
  • Primula 'Beatrice Wooster' (Au)
  • Primula 'Dark Rosaleen' (Pr/Poly)
  • Primula 'Fire Opal' (Pr/Poly)
  • Primula Gold-laced Group (Pr/Poly)
  • Primula 'Guinevere' (Pr/Poly)
  • Primula Harlow Car hybrids (Pf)
  • Primula 'MacWatt's Cream' (Pr/Poly)
  • Primula 'Pink' (Primlet Series) (Pr/Prim)
  • Primula 'Powdery Pink' (Pf)
  • Primula 'Purple' (Primlet Series) (Pr/Prim)
  • Primula 'Red' (Primlet Series) (Pr/Prim)
  • Primula 'Rose' (Primlet Series) (Pr/Prim)
  • Primula 'Schneekissen' (Pr/Prim)
  • Primula 'Sunrise' (Au)
  • Primula 'Yellow' (Primlet Series) (Pr/Prim)
  • Prunus avium 'Stella' (F)
  • Prunus avium 'Sunburst' (D)
  • Prunus avium 'Sweetheart' (F)
  • Prunus cerasus 'Meteor Korai' (F)
  • Prunus domestica 'Victoria' (D)
  • Prunus incisa 'Kojo-no-mai'
  • Prunus nipponica var. kurilensis 'Brillant'
  • Prunus × cistena
  • Prunus × incam 'Okamé'
  • Prunus × subhirtella 'Autumnalis Rosea'
  • Prunus 'Beni-yutaka'
  • Prunus 'Kanzan' (d)
  • Prunus 'Kiku-shidare-zakura'
  • Prunus 'Matsumae-fuki'
  • Prunus 'Royal Burgundy' (d)
  • Prunus 'Spire'
  • Psammophiliella muralis 'Gypsy Deep Rose'
  • Pteris cretica 'Mayi' (v)
  • Pteris cretica 'Rivertoniana'
  • Pteris cretica 'Roweri'
  • Pteris cretica 'Wimsettii'
  • Pteris umbrosa
  • Pulmonaria angustifolia 'Blaues Meer'
  • Pulmonaria longifolia
  • Pulmonaria longifolia subsp. cevennensis
  • Pulmonaria saccharata 'Dora Bielefeld'
  • Pulmonaria Opal = 'Ocupol'
  • Pulmonaria 'Blue Ensign'
  • Pulmonaria 'Blue Pearl'
  • Pulmonaria 'Cotton Cool'
  • Pulmonaria 'Diana Clare'
  • Pulmonaria 'Little Star'
  • Pulmonaria 'Majesté'
  • Pulmonaria 'Moonshine' (PBR)
  • Pulmonaria 'Mrs Kittle'
  • Pulmonaria 'Saint Ann's'
  • Pulmonaria 'Sissinghurst White'
  • Pulmonaria 'Stillingfleet Meg'
  • Pulmonaria 'Trevi Fountain'
  • Pulmonaria 'Victorian Brooch' (PBR)
  • Pulmonaria 'Weetwood Blue'
  • Pulsatilla albana
  • Pulsatilla caucasica
  • Pulsatilla rubra
  • Pulsatilla vulgaris
  • Pulsatilla vulgaris Pinwheel Blue Violet Shades (Pinwheel Series)
  • Pulsatilla vulgaris 'Alba'
  • Pulsatilla vulgaris 'Barton's Pink'
  • Pulsatilla vulgaris 'Blaue Glocke'
  • Pulsatilla vulgaris 'Eva Constance'
  • Pulsatilla vulgaris 'Perlen Glocke'
  • Pulsatilla vulgaris 'Röde Klokke'
  • Pulsatilla vulgaris subsp. grandis
  • Pulsatilla vulgaris violet-blue-flowered
  • Puschkinia scilloides var. libanotica
  • Pyracantha rogersiana 'Flava'
  • Pyracantha Saphyr Orange = 'Cadange'
  • Pyracantha Saphyr Rouge = 'Cadrou'
  • Pyracantha 'Fiery Cascade'
  • Pyracantha 'Mohave'
  • Pyracantha 'Mohave Silver' (v)
  • Pyracantha 'Orange Glow'
  • Pyracantha 'Red Star' (PBR)
  • Pyrus communis 'Conference' (D)
  • Ranunculus aconitifolius 'Flore Pleno' (d)
  • Ranunculus gramineus
  • Ranunculus platanifolius
  • Ranunculus seguieri
  • Ratibida columnifera
  • Ratibida columnifera f. pulcherrima
  • Ratibida mexicana
  • Rehmannia Walberton's Magic Dragon = 'Walremadra' (PBR)
  • Rhamnus alaternus 'Argenteovariegata' (v)
  • Rheum australe
  • Rheum palmatum
  • Rheum palmatum 'Atrosanguineum'
  • Rheum palmatum 'Rubrum'
  • Rheum × hybridum 'Champagne'
  • Rheum × hybridum 'Glaskin's Perpetual'
  • Rheum × hybridum 'Grandad's Favorite'
  • Rheum × hybridum 'Raspberry Red'
  • Rheum × hybridum 'Timperley Early'
  • Rheum × hybridum 'Victoria'
  • Rheum 'Ace of Hearts'
  • Rhodanthemum catananche 'Tizi-n-Tichka'
  • Rhodanthemum hosmariense
  • Rhodanthemum 'Casablanca' (PBR) (Atlas Daisy Series)
  • Rhodiola kirilowii var. rubra
  • Rhodiola pachyclados
  • Rhodiola rosea
  • Rhodiola saxifragoides
  • Rhododendron fastigiatum 'Blue Steel'
  • Rhododendron nakaharae orange-flowered (EA)
  • Rhododendron (Aronense Group) 'Satschiko' (EA)
  • Rhododendron (Blue Diamond Group) 'Blue Diamond'
  • Rhododendron (Elizabeth Group) 'Elizabeth'
  • Rhododendron (Satsuki Group) 'Gumpo White' (EA)
  • Rhododendron Schneeperle = 'Hachschnee' (EA)
  • Rhododendron Blue Tit Group
  • Rhododendron 'Canzonetta' (EA/d)
  • Rhododendron 'Chipmunk' (EA/d)
  • Rhododendron 'Dearest' (EA)
  • Rhododendron 'Dora Amateis'
  • Rhododendron 'Dreamland'
  • Rhododendron 'Ginny Gee'
  • Rhododendron 'Girard's Hot Shot' (EA)
  • Rhododendron 'Irohayama' (Kurume) (EA)
  • Rhododendron 'Johanna' (EA)
  • Rhododendron 'Lemon Dream'
  • Rhododendron 'Leni'
  • Rhododendron 'Magic Flute' (EA)
  • Rhododendron 'Mary Helen' (Glenn Dale) (EA)
  • Rhododendron 'Mother's Day' (Kurume) (EA)
  • Rhododendron 'Purple Cushion' (EA)
  • Rhododendron 'Ramapo'
  • Rhododendron 'Red Dawn'
  • Rhododendron 'Snipe'
  • Rhododendron 'Swift'
  • Rhododendron 'Titian Beauty'
  • Rhododendron 'Tit-Willow' (EA)
  • Rhododendron Volker Group
  • Rhododendron 'Vuyk's Scarlet' (Vuykiana) (EA)
  • Rhodohypoxis baurii 'Alba'
  • Rhodohypoxis baurii 'Mars'
  • Rhodohypoxis deflexa
  • Rhodohypoxis milloides
  • Rhodohypoxis milloides 'Claudia'
  • Rhodohypoxis 'Pintado'
  • Ribes laurifolium 'Mrs Amy Doncaster'
  • Ribes nigrum 'Ben Connan' (B)
  • Ribes nigrum 'Ben Sarek' (B)
  • Ribes nigrum 'Big Ben' (PBR) (B)
  • Ribes rubrum 'Jonkheer van Tets' (R)
  • Ribes rubrum 'Junifer' (R)
  • Ribes rubrum 'Rovada' (R)
  • Ribes rubrum 'Versailles Blanche' (W/C)
  • Ribes sanguineum White Icicle = 'Ubric'
  • Ribes sanguineum 'Carneum'
  • Ribes sanguineum 'King Edward VII'
  • Ribes sanguineum 'Lombartsii'
  • Ribes speciosum
  • Ribes uva-crispa 'Captivator' (C)
  • Ribes uva-crispa 'Hinnonmäki Gul' (D)
  • Ribes uva-crispa 'Hinnonmäki Röd' (C/D)
  • Ribes uva-crispa 'Invicta' (C/D)
  • Ribes uva-crispa 'Xenia' (D)
  • Rodgersia aesculifolia
  • Rodgersia aesculifolia var. henrici
  • Rodgersia pinnata
  • Rodgersia pinnata 'Buckland Beauty'
  • Rodgersia pinnata 'Crûg Cardinal'
  • Rodgersia pinnata 'Elegans'
  • Rodgersia pinnata 'Superba'
  • Rodgersia podophylla 'Smaragd'
  • Rodgersia purdomii hort.
  • Rodgersia sambucifolia
  • Rodgersia 'Badenweiler'
  • Rodgersia 'Blickfang'
  • Rodgersia 'Irish Bronze'
  • Rosa banksiae 'Lutea' (Ra/d)
  • Rosa filipes 'Kiftsgate' (Ra)
  • Rosa gallica 'Versicolor' (G)
  • Rosa × odorata (Sanguinea Group) 'Bengal Crimson' (Ch)
  • Rosa × odorata 'Mutabilis' (Ch)
  • Rosa A Shropshire Lad = 'Ausled' (PBR) (S)
  • Rosa Anne Boleyn = 'Ausecret' (PBR) (S)
  • Rosa Benjamin Britten = 'Ausencart' (PBR) (S)
  • Rosa Blue for You = 'Pejamblu' (PBR) (F)
  • Rosa Boscobel = 'Auscousin' (PBR) (S)
  • Rosa Brother Cadfael = 'Ausglobe' (PBR) (S)
  • Rosa Burgundy Ice = 'Prose' (PBR) (F)
  • Rosa Carefree Days = 'Meirivoui' (PBR) (Patio)
  • Rosa Carolyn Knight = 'Austurner' (PBR) (S)
  • Rosa Carris = 'Harmanna' (PBR) (HT)
  • Rosa Champagne Moment = 'Korvanaber' (PBR) (F)
  • Rosa Charles Darwin = 'Auspeet' (PBR) (S)
  • Rosa Charlotte = 'Auspoly' (PBR) (S)
  • Rosa Claire Austin = 'Ausprior' (PBR) (Cl)
  • Rosa Countess of Wessex = 'Beacream' (S)
  • Rosa Crocus Rose = 'Ausquest' (PBR) (S)
  • Rosa Crown Princess Margareta = 'Auswinter' (PBR) (Cl)
  • Rosa Darcey Bussell = 'Ausdecorum' (PBR) (S)
  • Rosa Desdemona = 'Auskindling' (PBR) (HM)
  • Rosa Eglantyne = 'Ausmak' (PBR) (S)
  • Rosa Eye of the Tiger = 'Chewbullseye' (PBR) (persica hybrid) (S)
  • Rosa Eyes for You = 'Pejbigeye' (F)
  • Rosa Falstaff = 'Ausverse' (PBR) (S)
  • Rosa Fighting Temeraire = 'Austrava' (PBR) (S)
  • Rosa Flower Carpet Amber = 'Noa97400a' (PBR) (GC)
  • Rosa Flower Carpet Gold = 'Noalesa' (PBR) (GC)
  • Rosa Flower Carpet Red Velvet = 'Noare' (PBR) (GC/S)
  • Rosa Flower Carpet Ruby (GC)
  • Rosa Flower Carpet Scarlet = 'Noa83100b' (PBR) (GC)
  • Rosa Flower Carpet Sunshine = 'Noason' (PBR) (GC)
  • Rosa Flower Carpet White = 'Noaschnee' (GC)
  • Rosa Flower Power Gold = 'Fryneon' (Patio)
  • Rosa For Your Eyes Only = 'Cheweyesup' (PBR) (S)
  • Rosa Gentle Hermione = 'Ausrumba' (PBR) (S)
  • Rosa Gertrude Jekyll = 'Ausbord' (PBR) (S)
  • Rosa Golden Celebration = 'Ausgold' (PBR) (S)
  • Rosa Golden Gate = 'Korgolgat' (PBR) (ClHT)
  • Rosa Golden Wedding = 'Arokris' (F)
  • Rosa Grace = 'Auskeppy' (PBR) (S)
  • Rosa Graham Thomas = 'Ausmas' (S)
  • Rosa Happy Anniversary = 'Delpre' (F)
  • Rosa Harlow Carr ambig.
  • Rosa Iceberg = 'Korbin' (F)
  • Rosa Imogen = 'Austritch' (PBR) (S)
  • Rosa James Galway = 'Auscrystal' (PBR) (Cl)
  • Rosa Jubilee Celebration = 'Aushunter' (PBR) (S)
  • Rosa Jude the Obscure = 'Ausjo' (PBR) (S)
  • Rosa Kew Gardens = 'Ausfence' (PBR) (S)
  • Rosa Lady Emma Hamilton = 'Ausbrother' (PBR) (S)
  • Rosa Lady of Shalott = 'Ausnyson' (PBR) (S)
  • Rosa Lady Salisbury = 'Auscezed' (PBR) (S)
  • Rosa Let's Celebrate = 'Fryraffles' (PBR) (F)
  • Rosa Lichfield Angel = 'Ausrelate' (PBR) (S)
  • Rosa Little Rambler = 'Chewramb' (PBR) (MinRa)
  • Rosa Lovely Bride = 'Meiratcan' (PBR) (Patio)
  • Rosa Macmillan Nurse = 'Beamac' (S)
  • Rosa Many Happy Returns = 'Harwanted' (F)
  • Rosa Mary Rose = 'Ausmary' (S)
  • Rosa Millie = 'Poulren013' (PBR) (Renaissance Series) (S)
  • Rosa Misty Hit = 'Poulhi011' (PBR) (PatioHit Series) (Patio)
  • Rosa Molineux = 'Ausmol' (PBR) (S)
  • Rosa Mortimer Sackler = 'Ausorts' (PBR) (S)
  • Rosa Munstead Wood = 'Ausbernard' (PBR) (S)
  • Rosa Olivia Rose Austin = 'Ausmixture' (PBR) (S)
  • Rosa Peace = 'Madame A. Meilland' (HT)
  • Rosa Pink Flower Carpet = 'Noatraum' (GC)
  • Rosa Pink Hit = 'Poultipe' (PBR) (Min/Patio)
  • Rosa Port Sunlight = 'Auslofty' (PBR) (HM)
  • Rosa Princess Alexandra of Kent = 'Ausmerchant' (PBR) (S)
  • Rosa Princess Anne = 'Auskitchen' (PBR) (S)
  • Rosa Queen of Sweden = 'Austiger' (PBR) (S)
  • Rosa Red Letter Day = 'Beajackdaw' (S)
  • Rosa Remember = 'Poulht001' (PBR) (HT)
  • Rosa Rhapsody in Blue = 'Frantasia' (PBR) (S)
  • Rosa Roald Dahl = 'Ausowlish' (PBR) (S)
  • Rosa Rosemoor = 'Austough' (PBR) (S)
  • Rosa Ruby Slippers = 'Weksactrumi' (Min)
  • Rosa Saint Swithun = 'Auswith' (PBR) (S)
  • Rosa Scarlet Hit = 'Poulmo' (PBR) (PatioHit Series) (Min/Patio)
  • Rosa Scepter'd Isle = 'Ausland' (PBR) (S)
  • Rosa Silver Anniversary = 'Poulari' (HT)
  • Rosa Simply the Best = 'Macamster' (PBR) (HT)
  • Rosa Sir John Betjeman = 'Ausvivid' (PBR) (S)
  • Rosa Special Anniversary = 'Whastiluc' (PBR) (HT)
  • Rosa Spirit of Freedom = 'Ausbite' (PBR) (S)
  • Rosa Strawberry Hill = 'Ausrimini' (PBR) (Cl)
  • Rosa Sunny Sky = 'Koraruli' (PBR) (HT)
  • Rosa Susan Williams-Ellis = 'Ausquirk' (PBR) (S)
  • Rosa Sweet Memories = 'Whamemo' (Patio)
  • Rosa Sweet Parfum de Provence = 'Meiclusif' (PBR) (HT)
  • Rosa Teasing Georgia = 'Ausbaker' (PBR) (Cl)
  • Rosa Tess of the d'Urbervilles = 'Ausmove' (PBR) (S)
  • Rosa The Albrighton Rambler = 'Ausmobile' (PBR) (Ra)
  • Rosa The Alnwick Rose = 'Ausgrab' (PBR) (S)
  • Rosa The Ancient Mariner = 'Ausoutcry' (S)
  • Rosa The Generous Gardener = 'Ausdrawn' (PBR) (Cl)
  • Rosa The Lady Gardener = 'Ausbrass' (PBR) (S)
  • Rosa The Lady of the Lake = 'Ausherbert' (PBR) (Ra)
  • Rosa The Lark Ascending = 'Ausursula' (PBR) (S)
  • Rosa The Mayflower = 'Austilly' (PBR) (S)
  • Rosa The Pilgrim = 'Auswalker' (S)
  • Rosa The Poet's Wife = 'Auswhirl' (PBR) (S)
  • Rosa The Wedgwood Rose = 'Ausjosiah' (PBR) (ClS)
  • Rosa Thomas À Becket = 'Auswinston' (PBR) (S)
  • Rosa Togmeister = 'Beahappy' (F)
  • Rosa Tranquility = 'Barout' (HT)
  • Rosa Warm Wishes = 'Fryxotic' (PBR) (HT)
  • Rosa Wildeve = 'Ausbonny' (PBR) (S)
  • Rosa Winchester Cathedral = 'Auscat' (S)
  • Rosa Wisley 2008 = 'Ausbreeze' (PBR) (S)
  • Rosa Wollerton Old Hall = 'Ausblanket' (PBR) (Cl)
  • Rosa Young Lycidas = 'Ausvibrant' (PBR) (S)
  • Rosa You're Beautiful = 'Fryracy' (PBR) (F)
  • Rosa 'Alexandre Girault' (Ra)
  • Rosa 'Bobbie James' (Ra)
  • Rosa 'Boule de Neige' (Bb)
  • Rosa 'Climbing Lady Sylvia' (ClHT)
  • Rosa 'Constance Spry' (ClS)
  • Rosa 'Ena Harkness' (HT)
  • Rosa 'Evelyn May' (HT)
  • Rosa 'Ferdinand Pichard' (Bb)
  • Rosa 'Flower Carpet Coral' (PBR) (GC)
  • Rosa 'Francis E. Lester' (HM/Ra)
  • Rosa 'Jubilee Celebration' (F)
  • Rosa 'Madame Alfred Carrière' (N)
  • Rosa 'Madame Grégoire Staechelin' (ClHT)
  • Rosa 'Mermaid' (Cl)
  • Rosa 'Noisette Carnée' (N)
  • Rosa 'Paul's Himalayan Musk' (Ra)
  • Rosa 'Rambling Rector' (Ra)
  • Rosa 'Ruby Wedding' (HT)
  • Rosa 'Sander's White Rambler' (Ra)
  • Rosa 'Silver Jubilee' (HT)
  • Rosa 'Veilchenblau' (Ra)
  • Rosa 'Wedding Day' (Ra)
  • Rosa 'William Lobb' (CeMo)
  • Rosa 'Zéphirine Drouhin' (Bb)
  • Roscoea cautleyoides
  • Roscoea cautleyoides early-flowering
  • Roscoea cautleyoides 'Jeffrey Thomas'
  • Roscoea humeana
  • Roscoea purpurea
  • Roscoea purpurea f. rubra
  • Roscoea purpurea 'Wisley Amethyst'
  • Roscoea scillifolia
  • Roscoea × beesiana Gestreept Group
  • Roscoea 'Harvington Evening Star'
  • Roscoea 'Harvington Raw Silk'
  • Roscoea 'Harvington Royale'
  • Roscoea 'Kew Beauty'
  • Roscoea 'McBeath's Pink'
  • Roscoea 'Summer Deep Purple'
  • Rosularia aizoon
  • Rosularia chrysantha
  • Rosularia sempervivum subsp. glaucophylla
  • Rubus fruticosus agg. 'Chester' (B)
  • Rubus fruticosus agg. 'Loch Ness' (B)
  • Rubus fruticosus agg. 'Loch Tay' (PBR) (B) AGM
  • Rubus fruticosus agg. 'Navaho' (B)
  • Rubus fruticosus agg. 'Ouachita' (PBR) (B)
  • Rubus fruticosus agg. 'Reuben' (PBR) (B)
  • Rubus idaeus Ruby Beauty = 'Nr7' (PBR) (F)
  • Rubus idaeus 'Autumn Bliss' (F)
  • Rubus idaeus 'Cascade Delight' (F)
  • Rubus idaeus 'Erika' (PBR) (F)
  • Rubus idaeus 'Glen Ample' (PBR) (F)
  • Rubus idaeus 'Glen Clova' (F)
  • Rubus idaeus 'Glen Doll' (PBR) (F)
  • Rubus idaeus 'Octavia' (PBR) (F)
  • Rubus idaeus 'Polka' (PBR) (F)
  • Rubus idaeus 'Tadmor' (PBR) (F)
  • Rubus idaeus 'Tulameen' (F)
  • Rubus × loganobaccus 'Ly 654' (F)
  • Rubus Tayberry Group (F)
  • Rudbeckia fulgida Viette's Little Suzy = 'Blovi'
  • Rudbeckia fulgida 'Early Bird Gold'
  • Rudbeckia fulgida 'Little Goldstar' (PBR)
  • Rudbeckia fulgida var. deamii
  • Rudbeckia fulgida var. speciosa
  • Rudbeckia fulgida var. sullivantii 'Goldsturm'
  • Rudbeckia hirta Autumn Colors (mixed)
  • Rudbeckia hirta 'Cappuccino'
  • Rudbeckia hirta 'Indian Summer'
  • Rudbeckia hirta 'Prairie Sun'
  • Rudbeckia laciniata 'Goldquelle' (d)
  • Rudbeckia laciniata 'Herbstsonne'
  • Rudbeckia laciniata 'Juligold'
  • Rudbeckia missouriensis
  • Rudbeckia mollis
  • Rudbeckia occidentalis
  • Rudbeckia occidentalis 'Green Wizard'
  • Rudbeckia subtomentosa
  • Rudbeckia subtomentosa 'Little Henry' (PBR)
  • Rudbeckia triloba
  • Rudbeckia Summerina Brown = 'Et Rdb 03' (PBR) (Summerina Series)
  • Rudbeckia Summerina Orange = 'Et Rdb 01' (PBR) (Summerina Series)
  • Rudbeckia Summerina Yellow = 'Et Rdb 02' (PBR) (Summerina Series)
  • Rudbeckia 'Berlin'
  • Rumohra adiantiformis
  • Salix alba 'Golden Ness'
  • Salix alba var. vitellina 'Yelverton'
  • Salix caprea 'Kilmarnock' (m)
  • Salix integra 'Hakuro-nishiki' (v)
  • Salix udensis 'Golden Sunshine' (PBR)
  • Salvia argentea
  • Salvia farinacea 'Midnight Candle'
  • Salvia flava var. megalantha
  • Salvia greggii
  • Salvia greggii 'Desert Blaze' (v)
  • Salvia greggii 'Icing Sugar' (PBR)
  • Salvia greggii 'Lipstick'
  • Salvia guaranitica 'Black and Blue'
  • Salvia guaranitica 'Blue Enigma'
  • Salvia hierosolymitana
  • Salvia lyrata 'Purple Knockout'
  • Salvia microphylla 'Oregon Peach'
  • Salvia nemorosa Marcus = 'Haeumanarc' (PBR)
  • Salvia nemorosa Sensation Blue = 'Florsalvioblu' (PBR) (Sensation Series)
  • Salvia nemorosa Sensation Deep Blue = 'Florsaldblue' (Sensation Series)
  • Salvia nemorosa Sensation Deep Rose = 'Flor Sal Roz' (Sensation Series)
  • Salvia nemorosa Sensation Pink (Sensation Series)
  • Salvia nemorosa Sensation Rose (Sensation Series)
  • Salvia nemorosa Sensation White = 'Florsalwhite' (Sensation Series)
  • Salvia nemorosa 'Amethyst'
  • Salvia nemorosa 'Bordeau Steel Blue'
  • Salvia nemorosa 'Caradonna'
  • Salvia nemorosa 'Little Friesland'
  • Salvia nemorosa 'Ostfriesland'
  • Salvia nemorosa 'Pink Beauty'
  • Salvia nemorosa 'Pink Friesland' (PBR)
  • Salvia nemorosa 'Rosenwein'
  • Salvia nemorosa 'Schwellenburg'
  • Salvia officinalis 'Robin Hill'
  • Salvia patens 'Cambridge Blue'
  • Salvia patens light blue-flowered
  • Salvia pratensis 'Indigo'
  • Salvia pratensis 'Pink Delight' (PBR)
  • Salvia przewalskii
  • Salvia roemeriana 'Hot Trumpets'
  • Salvia rosmarinus (Albiflora Group) 'Lady in White' (Ro)
  • Salvia rosmarinus (Ro)
  • Salvia rosmarinus 'Fota Blue' (Ro)
  • Salvia rosmarinus 'Knightshayes Blue' (Ro)
  • Salvia rosmarinus 'McConnell's Blue' (Ro)
  • Salvia rosmarinus 'Miss Jessopp's Upright' (Ro)
  • Salvia rosmarinus Prostrata Group (Ro)
  • Salvia rosmarinus 'Roman Beauty' (PBR) (Ro)
  • Salvia rosmarinus 'Rosea' (Ro)
  • Salvia rosmarinus 'Severn Sea' (Ro)
  • Salvia rosmarinus 'Sissinghurst Blue' (Ro)
  • Salvia rosmarinus 'Tuscan Blue' (Ro)
  • Salvia sclarea var. turkestaniana 'Vatican Pink'
  • Salvia sclarea var. turkestaniana 'Vatican White'
  • Salvia uliginosa
  • Salvia verticillata 'Alba'
  • Salvia verticillata 'Purple Rain'
  • Salvia yangii Silvery Blue = 'Lissvery' (PBR) (Pe)
  • Salvia × jamensis 'Flammenn' (PBR)
  • Salvia × jamensis 'Peter Vidgeon'
  • Salvia × jamensis 'Pluenn' (PBR)
  • Salvia × jamensis 'Raspberry Royale'
  • Salvia × jamensis 'Sierra San Antonio'
  • Salvia × superba
  • Salvia × sylvestris 'Blauhügel'
  • Salvia × sylvestris 'Blaukönigin'
  • Salvia × sylvestris 'Mainacht'
  • Salvia × sylvestris 'Rügen'
  • Salvia × sylvestris 'Rose Queen'
  • Salvia × sylvestris 'Schneehügel'
  • Salvia × sylvestris 'Viola Klose'
  • Salvia Ember's Wish = 'Sal 0101' (PBR)
  • Salvia Lacey Blue = 'Lisslitt' (PBR) (Pe)
  • Salvia Love and Wishes = 'Serendip6' (PBR)
  • Salvia Mystic Spires Blue = 'Balsalmisp' (PBR)
  • Salvia 'African Sky'
  • Salvia 'Amistad' (PBR)
  • Salvia 'Blue Note' (PBR)
  • Salvia 'Blue Spire' (Pe)
  • Salvia 'Filigran' (Pe)
  • Salvia 'Hot Lips'
  • Salvia 'Jezebel'
  • Salvia 'Little Spire' (PBR) (Pe)
  • Salvia 'Nachtvlinder'
  • Salvia 'Nuchi'
  • Salvia 'Purple Queen'
  • Salvia 'Red Swing' (PBR)
  • Salvia 'Royal Bumble'
  • Salvia 'Salmon Dance'
  • Salvia 'Silas Dyson'
  • Salvia 'Trelawney'
  • Salvia 'Trelissick'
  • Salvia 'Violin Music' (PBR)
  • Salvia 'Wendy's Wish' (PBR)
  • Sambucus nigra 'Serenade'
  • Sambucus racemosa 'Sutherland Gold'
  • Sanguinaria canadensis
  • Sanguinaria canadensis f. multiplex (d)
  • Sanguinaria canadensis f. multiplex 'Plena' (d)
  • Sanguisorba menziesii
  • Sanguisorba obtusa
  • Sanguisorba stipulata
  • Sanguisorba tenuifolia var. alba
  • Sanguisorba 'Tanna'
  • Sanicula epipactis
  • Santolina chamaecyparissus
  • Santolina chamaecyparissus 'Lambrook Silver'
  • Santolina chamaecyparissus 'Lemon Queen'
  • Santolina rosmarinifolia
  • Santolina rosmarinifolia 'Lemon Fizz'
  • Santolina rosmarinifolia subsp. rosmarinifolia 'Primrose Gem'
  • Sarcococca confusa
  • Sarcococca hookeriana Winter Gem = 'Pmoore03' (PBR)
  • Sarcococca hookeriana var. digyna
  • Sarcococca hookeriana var. hookeriana 'Ghorepani'
  • Sarcococca hookeriana var. humilis
  • Sarcococca orientalis
  • Sarcococca ruscifolia
  • Sarcococca ruscifolia var. chinensis 'Dragon Gate'
  • Sauromatum venosum
  • Saxifraga callosa (8)
  • Saxifraga cochlearis (8)
  • Saxifraga cotyledon (8)
  • Saxifraga federici-augusti subsp. grisebachii (7)
  • Saxifraga ferdinandi-coburgi subsp. chrysosplenifolia var. rhodopea (7)
  • Saxifraga longifolia (8)
  • Saxifraga marginata subsp. marginata var. boryi (7)
  • Saxifraga marginata subsp. marginata var. rocheliana (7)
  • Saxifraga paniculata var. minutifolia (8)
  • Saxifraga paradoxa (15)
  • Saxifraga sancta (7)
  • Saxifraga spruneri (7)
  • Saxifraga umbrosa (11)
  • Saxifraga × biasolettoi Sünd. (7)
  • Saxifraga × burnatii (8)
  • Saxifraga (London Pride Group) 'Letchworth Gem' (× urbium) (11)
  • Saxifraga (Mossy Group) Touran Deep Red = 'Rockred' (15)
  • Saxifraga (Mossy Group) Touran Large White = 'Rocklarwhi' (PBR) (15)
  • Saxifraga (Mossy Group) 'Peter Pan' (15)
  • Saxifraga (Prichard's Monument Group) 'Karel Capek' (× megaseiflora) (7)
  • Saxifraga (Silver Farreri Group) 'Snowflake' (8)
  • Saxifraga 'Alba' ambig.
  • Saxifraga 'Aureopunctata' (× urbium) (11/v)
  • Saxifraga 'Beatrix Stanley' (× anglica) (7)
  • Saxifraga 'Blackberry and Apple Pie' (fortunei) (5)
  • Saxifraga 'Boston Spa' (× elisabethae) (7)
  • Saxifraga 'Bridget' (× edithae) (7)
  • Saxifraga 'Canis-dalmatica' (× gaudinii) (8)
  • Saxifraga 'Cloth of Gold' (exarata subsp. moschata) (15)
  • Saxifraga 'Cranbourne' (× anglica) (7)
  • Saxifraga 'Crenata' (burseriana) (7)
  • Saxifraga 'Crystalie' (× biasolettoi) (7)
  • Saxifraga 'Dainty Dame' (× arco-valleyi) (7)
  • Saxifraga 'Doctor Clay' (paniculata) (8)
  • Saxifraga 'Doctor Ramsey' (8)
  • Saxifraga 'Drakula' (ferdinandi-coburgi) (7)
  • Saxifraga 'Elf Rose' (15)
  • Saxifraga 'Esther' (× burnatii) (8)
  • Saxifraga 'Gaiety' (15)
  • Saxifraga 'Gem' (× irvingii) (7)
  • Saxifraga 'Gemma' (× megaseiflora) (7)
  • Saxifraga 'Gloria' (burseriana) (7)
  • Saxifraga 'Gregor Mendel' (× apiculata) (7)
  • Saxifraga 'Hare Knoll Beauty' (8)
  • Saxifraga 'Hindhead Seedling' (× boydii) (7)
  • Saxifraga 'Jenkinsiae' (× irvingii) (7)
  • Saxifraga 'Kaspar Maria Sternberg' (× petraschii) (7)
  • Saxifraga 'King Lear' (× bursiculata) (7)
  • Saxifraga 'Labe' (× arco-valleyi) (7)
  • Saxifraga 'Lagraveana' (paniculata) (8)
  • Saxifraga 'Leo Gordon Godseff' (× elisabethae) (7)
  • Saxifraga 'Leonore' (× landaueri) (7)
  • Saxifraga 'Minor' (cochlearis) (8)
  • Saxifraga 'Monarch' (8)
  • Saxifraga 'Mount Nachi' (fortunei) (5)
  • Saxifraga 'Mrs Helen Terry' (× salmonica) (7)
  • Saxifraga 'Peach Melba' (7)
  • Saxifraga 'Penelope' (× boydilacina) (7)
  • Saxifraga 'Phoenix' (× biasolettoi) (7)
  • Saxifraga 'Polar Drift'
  • Saxifraga 'Popelka' (marginata subsp. marginata var. rocheliana) (7)
  • Saxifraga 'Prince Hal' (burseriana) (7)
  • Saxifraga 'Princess' (burseriana) (7)
  • Saxifraga 'Rosina Sündermann' (× rosinae) (7)
  • Saxifraga 'Schwefelblüte' (15)
  • Saxifraga 'Silver Cushion' (15/v)
  • Saxifraga Southside Seedling Group (8)
  • Saxifraga 'Suendermannii' (× kellereri) (7)
  • Saxifraga 'Suendermannii Major' (× kellereri) (7)
  • Saxifraga 'Sulphurea' (× boydii) (7)
  • Saxifraga 'Tumbling Waters' (8)
  • Saxifraga 'Variegata' (cuneifolia) (11/v)
  • Saxifraga 'Vladana' (× megaseiflora) (7)
  • Saxifraga 'Wada' (fortunei) (5)
  • Saxifraga 'Wheatley Rose' (7)
  • Saxifraga 'White Delight' (× megaseiflora) (7)
  • Saxifraga 'White Star' (fortunei) (5)
  • Saxifraga 'Whitehill' (8)
  • Saxifraga 'Winifred Bevington' (8 × 11)
  • Saxifraga 'Winston Churchill' (15)
  • Scabiosa atropurpurea 'Chile Black'
  • Scabiosa caucasica
  • Scabiosa caucasica 'Fama Deep Blue'
  • Scabiosa caucasica 'Fama White'
  • Scabiosa caucasica 'Miss Willmott'
  • Scabiosa caucasica 'Perfecta Alba' (Perfecta Series)
  • Scabiosa caucasica Perfecta Series
  • Scabiosa columbaria
  • Scabiosa columbaria 'Mariposa Blue' (PBR)
  • Scabiosa columbaria 'Nana'
  • Scabiosa columbaria 'Pincushion Blue'
  • Scabiosa columbaria 'Pincushion Pink'
  • Scabiosa columbaria subsp. ochroleuca 'Moon Dance'
  • Scabiosa graminifolia
  • Scabiosa lucida
  • Scabiosa 'Butterfly Blue'
  • Scabiosa Kudo Series
  • Scabiosa 'Pink Mist'
  • Scabiosa 'Vivid Vi' (PBR)
  • Schizachyrium scoparium
  • Schizophragma hydrangeoides
  • Schizophragma hydrangeoides 'Rose Sensation'
  • Schizophragma hydrangeoides var. concolor 'Moonlight'
  • Scilla autumnalis
  • Scilla bifolia 'Rosea'
  • Scilla forbesii
  • Scilla luciliae 'Alba'
  • Scilla luciliae ambig.
  • Scilla mischtschenkoana
  • Scilla peruviana
  • Scilla sardensis
  • Scilla siberica
  • Scilla siberica 'Spring Beauty'
  • Scilla 'Pink Giant'
  • Scopolia carniolica var. brevifolia
  • Scrophularia auriculata 'Variegata' (v)
  • Scutellaria tournefortii
  • Sedum acre
  • Sedum acre 'Golden Queen'
  • Sedum acre 'Minus'
  • Sedum album
  • Sedum album subsp. teretifolium var. murale
  • Sedum kamtschaticum var. ellacombeanum
  • Sedum kamtschaticum var. kamtschaticum 'Variegatum' (v)
  • Sedum oregonense
  • Sedum spathulifolium 'Cape Blanco'
  • Sedum spathulifolium 'Purpureum'
  • Sedum spurium 'Fuldaglut'
  • Sedum spurium 'Schorbuser Blut'
  • Selaginella kraussiana 'Aurea'
  • Selaginella kraussiana 'Gold Tips'
  • Selaginella moellendorfii
  • Selaginella uncinata
  • Selinum wallichianum
  • Semiaquilegia 'Sugar Plum Fairy'
  • Semiarundinaria yashadake f. kimmei
  • Sempervivum altum
  • Sempervivum arachnoideum
  • Sempervivum arachnoideum L. subsp. tomentosum (C.B. Lehm. & Schnittsp.) Schinz & Thell.
  • Sempervivum arachnoideum 'Rubrum'
  • Sempervivum arachnoideum subsp. tomentosum 'Stansfieldii'
  • Sempervivum arachnoideum var. bryoides
  • Sempervivum ballsii
  • Sempervivum calcareum
  • Sempervivum calcareum 'Greenii'
  • Sempervivum calcareum 'Guillaumes'
  • Sempervivum calcareum 'Limelight'
  • Sempervivum calcareum 'Sir William Lawrence'
  • Sempervivum caucasicum
  • Sempervivum erythraeum
  • Sempervivum giuseppii
  • Sempervivum marmoreum
  • Sempervivum pumilum
  • Sempervivum reginae-amaliae
  • Sempervivum ruthenicum
  • Sempervivum tectorum var. alpinum
  • Sempervivum 'Banyan'
  • Sempervivum 'Black Knight'
  • Sempervivum 'Blood Tip'
  • Sempervivum 'Blue Boy'
  • Sempervivum 'Brock'
  • Sempervivum 'Bronco'
  • Sempervivum 'Crispyn'
  • Sempervivum 'Dark Beauty'
  • Sempervivum 'Engle's'
  • Sempervivum 'Fuego'
  • Sempervivum 'Gallivarda'
  • Sempervivum 'Green Dragon'
  • Sempervivum 'Grey Dawn'
  • Sempervivum 'Grey Owl'
  • Sempervivum 'Greyfriars'
  • Sempervivum 'Hayling'
  • Sempervivum 'Heigham Red'
  • Sempervivum 'Hey-hey'
  • Sempervivum 'Icicle'
  • Sempervivum 'Irazu'
  • Sempervivum 'Jet Stream'
  • Sempervivum 'Jewel Case'
  • Sempervivum 'Lavender and Old Lace'
  • Sempervivum 'Lilac Time'
  • Sempervivum 'Lively Bug'
  • Sempervivum 'Mercury'
  • Sempervivum 'Midas'
  • Sempervivum 'Mount Hood'
  • Sempervivum 'Noir'
  • Sempervivum 'Ohio Burgundy'
  • Sempervivum 'Pekinese'
  • Sempervivum 'Purple Queen'
  • Sempervivum 'Red Beam'
  • Sempervivum 'Red Devil'
  • Sempervivum 'Reginald Malby'
  • Sempervivum 'Reinhard'
  • Sempervivum 'Rosie'
  • Sempervivum 'Rotkopf'
  • Sempervivum 'Silberspitz'
  • Sempervivum 'Silver Jubilee'
  • Sempervivum 'Silver Thaw'
  • Sempervivum 'Skrocki's Bronze'
  • Sempervivum 'Springmist'
  • Sempervivum 'Sprite'
  • Sempervivum 'Starburst'
  • Sempervivum 'Twilight Blues'
  • Sidalcea candida
  • Sidalcea 'Croftway Red'
  • Sidalcea 'Elsie Heugh'
  • Sidalcea 'Little Princess' (PBR)
  • Sidalcea 'Loveliness'
  • Sidalcea 'Oberon'
  • Sidalcea 'Party Girl'
  • Sidalcea 'Rosanna'
  • Sidalcea 'Rose Queen'
  • Sidalcea Stark's hybrids
  • Sidalcea 'Wensleydale'
  • Sidalcea 'William Smith'
  • Sidalcea 'Wine Red'
  • Silene alpestris 'Starry Dreams'
  • Silene dioica 'Rollie's Favorite' (PBR)
  • Silene keiskei var. minor
  • Silene schafta 'Shell Pink'
  • Silene uniflora 'Druett's Variegated' (v)
  • Silphium perfoliatum
  • Sisyrinchium idahoense var. bellum 'Rocky Point'
  • Sisyrinchium striatum
  • Sisyrinchium striatum 'Aunt May' (v)
  • Sisyrinchium 'Californian Skies'
  • Sisyrinchium 'Devon Skies'
  • Sisyrinchium 'E.K. Balls'
  • Skimmia japonica 'Finchy' (PBR) (m)
  • Skimmia japonica 'Fragrans' (m)
  • Skimmia japonica 'Godrie's Dwarf' (m)
  • Skimmia japonica 'Kew White' (f)
  • Skimmia japonica 'Marlot' (m)
  • Skimmia japonica 'Nymans' (f)
  • Skimmia japonica 'Olympic Flame' (f)
  • Skimmia japonica 'Red Diamonds'
  • Skimmia japonica 'Red Riding Hood' (f)
  • Skimmia japonica 'Rubella' (m)
  • Skimmia japonica 'Temptation' (PBR) (f)
  • Skimmia japonica 'Veitchii' (f)
  • Skimmia japonica 'White Bella' (m)
  • Skimmia × confusa 'Kew Green' (m)
  • Solanum crispum 'Glasnevin'
  • Solanum laxum
  • Solanum laxum 'Album'
  • Solanum lycopersicum 'Alicante'
  • Solanum lycopersicum 'Balconi Red'
  • Solanum lycopersicum 'Balconi Yellow'
  • Solanum lycopersicum 'Black Cherry'
  • Solanum lycopersicum 'Blackbell'
  • Solanum lycopersicum 'Chocolate Cherry'
  • Solanum lycopersicum 'Dombito'
  • Solanum lycopersicum 'Ferrari'
  • Solanum lycopersicum 'Gardener's Delight'
  • Solanum lycopersicum 'Golden Sunrise'
  • Solanum lycopersicum 'Golden Sweet'
  • Solanum lycopersicum 'Lilliput'
  • Solanum lycopersicum 'Linda'
  • Solanum lycopersicum 'Losetto'
  • Solanum lycopersicum 'Maestria'
  • Solanum lycopersicum 'Ortiga'
  • Solanum lycopersicum 'Outdoor Girl'
  • Solanum lycopersicum 'Pomona'
  • Solanum lycopersicum 'Red Alert'
  • Solanum lycopersicum 'San Marzano'
  • Solanum lycopersicum 'Shirley'
  • Solanum lycopersicum 'Sun Belle'
  • Solanum lycopersicum 'Sungold'
  • Solanum lycopersicum 'Super Marmande'
  • Solanum lycopersicum 'Supersteak'
  • Solanum lycopersicum 'Supersweet 100'
  • Solanum lycopersicum 'Sweet Million'
  • Solanum lycopersicum 'Sweet 'n' Neat Scarlet'
  • Solanum lycopersicum 'Titania'
  • Solanum lycopersicum 'Totem'
  • Solanum lycopersicum 'Tumbler'
  • Solanum lycopersicum 'Tumbling Tiger'
  • Solanum lycopersicum 'Tumbling Tom Red'
  • Solanum lycopersicum 'Tumbling Tom Yellow'
  • Solanum melongena 'Moneymaker'
  • Solanum tuberosum 'Venus'
  • Solidago flexicaulis 'Variegata' (v)
  • Solidago Sweety = 'Barseven' (PBR)
  • Solidago 'Crown of Rays'
  • Solidago 'Goldkind'
  • Solidago 'Ledsham'
  • Sollya heterophylla
  • Sollya heterophylla 'Alba'
  • Sophora Sun King = 'Hilsop' (PBR)
  • Sorbus aucuparia
  • Sorbus aucuparia 'Aspleniifolia'
  • Sorbus vilmorinii
  • Sorbus 'Joseph Rock'
  • Spinacia oleracea 'Galaxy'
  • Spinacia oleracea 'Space'
  • Spinacia oleracea 'Tetona'
  • Spiraea japonica Magic Carpet = 'Walbuma' (PBR) (v)
  • Spiraea japonica 'Albiflora'
  • Spiraea japonica 'Goldflame'
  • Spiraea japonica 'Little Princess'
  • Spiraea japonica 'White Gold' (PBR)
  • Stachys byzantina
  • Stachys byzantina 'Big Ears'
  • Stachys byzantina 'Primrose Heron'
  • Stachys byzantina 'Silver Carpet'
  • Stachyurus chinensis 'Celina'
  • Sternbergia lutea
  • Stewartia pseudocamellia
  • Stipa calamagrostis
  • Stipa gigantea
  • Stipa gigantea 'Goldilocks'
  • Stipa gigantea 'Pixie'
  • Stipa ichu
  • Stipa tenuissima
  • Stokesia laevis
  • Stokesia laevis 'Blue Star'
  • Stokesia laevis 'Mary Gregory'
  • Stokesia laevis 'Mel's' (PBR)
  • Stokesia laevis 'Purple Parasols'
  • Stokesia laevis 'Silver Moon'
  • Stokesia laevis 'Träumerei'
  • Strobilanthes attenuata
  • Symphoricarpos Magical Candy = 'Kolmcan' (PBR)
  • Symphoricarpos Magical Galaxy = 'Kolmgala' (PBR)
  • Symphoricarpos Magical Sweet = 'Kolmaswet' (PBR)
  • Symphyotrichum ericoides 'Herbstmyrte'
  • Symphyotrichum lateriflorum 'Lady in Black'
  • Symphyotrichum lateriflorum 'Prince'
  • Symphyotrichum novae-angliae 'Andenken an Alma Pötschke'
  • Symphyotrichum novae-angliae 'Andenken an Paul Gerber'
  • Symphyotrichum novae-angliae 'Barr's Pink'
  • Symphyotrichum novae-angliae 'Harrington's Pink'
  • Symphyotrichum novae-angliae 'Purple Dome'
  • Symphyotrichum novae-angliae 'Vibrant Dome'
  • Symphyotrichum novae-angliae 'Violetta'
  • Symphyotrichum novi-belgii Bahamas = 'Dasone' (Island Series)
  • Symphyotrichum novi-belgii Barbados = 'Dastwo' (Island Series)
  • Symphyotrichum novi-belgii Samoa = 'Dasthree' (Island Series)
  • Symphyotrichum novi-belgii Tonga = 'Dasfour' (Island Series)
  • Symphyotrichum novi-belgii 'Ada Ballard'
  • Symphyotrichum novi-belgii 'Alice Haslam'
  • Symphyotrichum novi-belgii 'Apollo'
  • Symphyotrichum novi-belgii 'Chatterbox'
  • Symphyotrichum novi-belgii 'Crimson Brocade'
  • Symphyotrichum novi-belgii 'Dandy'
  • Symphyotrichum novi-belgii 'Fellowship'
  • Symphyotrichum novi-belgii 'Freda Ballard'
  • Symphyotrichum novi-belgii 'Herbstgruss vom Bresserhof'
  • Symphyotrichum novi-belgii 'Jenny'
  • Symphyotrichum novi-belgii 'Kristina'
  • Symphyotrichum novi-belgii 'Lady in Blue'
  • Symphyotrichum novi-belgii 'Little Pink Beauty'
  • Symphyotrichum novi-belgii 'Marie Ballard'
  • Symphyotrichum novi-belgii 'Norman's Jubilee'
  • Symphyotrichum novi-belgii 'Patricia Ballard' (d)
  • Symphyotrichum novi-belgii 'Peter Harrison'
  • Symphyotrichum novi-belgii 'Professor Anton Kippenberg'
  • Symphyotrichum novi-belgii 'Schneekissen'
  • Symphyotrichum novi-belgii 'Snowsprite'
  • Symphyotrichum novi-belgii 'White Ladies'
  • Symphyotrichum novi-belgii 'Winston S. Churchill'
  • Symphyotrichum 'Aqua Compact' (Autumn Jewels Series)
  • Symphyotrichum 'Little Carlow' (cordifolium hybrid)
  • Symphyotrichum 'Photograph'
  • Symphyotrichum 'Pink Star'
  • Symphyotrichum 'Wood's Blue'
  • Symphyotrichum 'Wood's Pink'
  • Symphytum ibericum
  • Symphytum ibericum 'All Gold'
  • Symphytum 'Hidcote Blue'
  • Symphytum 'Hidcote Pink'
  • Symphytum 'Rubrum'
  • Synthyris missurica subsp. stellata
  • Syringa meyeri 'Palibin'
  • Syringa pubescens subsp. patula
  • Syringa × josiflexa 'Bellicent'
  • Syringa Bloomerang Purple = 'Penda'
  • Syringa 'Pink Perfume' (PBR)
  • Syringa 'Red Pixie'
  • Tamarix parviflora
  • Tanacetum coccineum 'Duro'
  • Tanacetum coccineum 'Laurin'
  • Tanacetum coccineum Robinson's crimson-flowered
  • Tanacetum coccineum Robinson's giant-flowered
  • Tanacetum poteriifolium
  • Tecophilaea cyanocrocus
  • Tecophilaea cyanocrocus 'Leichtlinii'
  • Tecophilaea cyanocrocus 'Violacea'
  • Telekia speciosa
  • Tellima grandiflora
  • Tellima grandiflora 'Forest Frost'
  • Tellima grandiflora 'Purpurteppich'
  • Teucrium fruticans
  • Teucrium scorodonia 'Crispum'
  • Thalictrum aquilegiifolium
  • Thalictrum aquilegiifolium 'Album'
  • Thalictrum aquilegiifolium 'Thundercloud'
  • Thalictrum cultratum
  • Thalictrum delavayi
  • Thalictrum delavayi 'Album'
  • Thalictrum delavayi 'Ankum'
  • Thalictrum delavayi 'Hewitt's Double' (d)
  • Thalictrum dipterocarpum Franch.
  • Thalictrum flavum subsp. glaucum
  • Thalictrum isopyroides
  • Thalictrum morisonii
  • Thalictrum pubescens Pursh
  • Thalictrum rochebruneanum
  • Thalictrum rugosum
  • Thalictrum 'Elin'
  • Thalictrum 'Splendide'
  • Thelypteris ovata var. lindheimeri
  • Thermopsis chinensis
  • Thermopsis lanceolata
  • Thermopsis montana var. montana
  • Thymus pulegioides 'Archer's Gold'
  • Thymus serpyllum 'Annie Hall'
  • Thymus serpyllum 'Goldstream' (v)
  • Thymus serpyllum 'Minor'
  • Thymus serpyllum 'Pink Chintz'
  • Thymus serpyllum var. albus
  • Thymus serpyllum 'Vey'
  • Thymus vulgaris
  • Thymus (Coccineus Group) 'Purple Beauty'
  • Thymus 'Alan Bloom'
  • Thymus 'Bressingham'
  • Thymus 'Coccineus Major'
  • Thymus 'Doone Valley' (v)
  • Thymus 'Hartington Silver' (v)
  • Thymus 'Silver Posie'
  • Tiarella cordifolia
  • Tiarella 'Spring Symphony' (PBR)
  • Tiarella 'Sugar and Spice' (PBR)
  • Toona sinensis 'Flamingo' (v)
  • Trachelospermum asiaticum 'Golden Memories'
  • Trachelospermum jasminoides
  • Trachelospermum jasminoides Star of Toscana = 'Selbra' (PBR)
  • Trachelospermum jasminoides 'Variegatum' (v)
  • Tradescantia (Andersoniana Group) 'Bilberry Ice'
  • Tradescantia (Andersoniana Group) 'Blue and Gold'
  • Tradescantia (Andersoniana Group) 'Charlotte'
  • Tradescantia (Andersoniana Group) 'Concord Grape'
  • Tradescantia (Andersoniana Group) 'Innocence'
  • Tradescantia (Andersoniana Group) 'Isis'
  • Tradescantia (Andersoniana Group) 'Little Doll'
  • Tradescantia (Andersoniana Group) 'Osprey'
  • Tradescantia (Andersoniana Group) 'Perinne's Pink'
  • Tradescantia (Andersoniana Group) 'Pink Chablis'
  • Tradescantia (Andersoniana Group) 'Purewell Giant'
  • Tradescantia (Andersoniana Group) 'Purple Dome'
  • Tradescantia (Andersoniana Group) 'Red Grape'
  • Tradescantia (Andersoniana Group) 'Sunshine Charm' (PBR) (Charm Series)
  • Tradescantia (Andersoniana Group) 'Sweet Kate'
  • Tradescantia (Andersoniana Group) 'Valour'
  • Tradescantia (Andersoniana Group) 'Zwanenburg Blue'
  • Tricyrtis formosana Stolonifera Group
  • Tricyrtis hirta
  • Tricyrtis hirta 'Albomarginata' (v)
  • Tricyrtis hirta 'Miyazaki'
  • Tricyrtis hirta 'Taiwan Atrianne'
  • Tricyrtis hirta 'Variegata' (v)
  • Tricyrtis Hototogisu
  • Tricyrtis 'Tojen'
  • Tricyrtis 'White Towers'
  • Trillium albidum
  • Trillium chloropetalum
  • Trillium cuneatum
  • Trillium erectum f. albiflorum
  • Trillium flexipes 'Harvington Dusky Pink'
  • Trillium flexipes 'Harvington Select'
  • Trillium grandiflorum
  • Trillium grandiflorum f. polymerum 'Flore Pleno' (d)
  • Trillium grandiflorum f. roseum
  • Trillium grandiflorum pale pink-flowered
  • Trillium kurabayashii
  • Trillium simile
  • Trillium sulcatum
  • Trillium vaseyi
  • Tritonia disticha subsp. rubrolucens
  • Trollius altaicus
  • Trollius chinensis 'Golden Queen'
  • Trollius europaeus
  • Trollius europaeus 'Lemon Supreme'
  • Trollius pumilus
  • Trollius yunnanensis
  • Trollius × cultorum 'Alabaster'
  • Trollius × cultorum 'New Moon'
  • Trollius × cultorum 'Orange Princess'
  • Trollius × cultorum 'Taleggio'
  • Trollius 'Dancing Flame'
  • Tropaeolum speciosum
  • Tulipa clusiana var. chrysantha (15)
  • Tulipa humilis (15)
  • Tulipa humilis 'Lilliput' (15)
  • Tulipa humilis 'Odalisque' (15)
  • Tulipa humilis Violacea Group (15)
  • Tulipa tarda (15)
  • Tulipa turkestanica (15)
  • Tulipa 'Calypso' (14)
  • Tulipa 'Candy Prince' (PBR) (1)
  • Tulipa 'Couleur Cardinal' (3)
  • Tulipa 'Fabio' (7)
  • Tulipa 'Flair' (1)
  • Tulipa 'Giuseppe Verdi' (12)
  • Tulipa 'Kikomachi' (3)
  • Tulipa 'Little Beauty' (15)
  • Tulipa 'Little Princess' (15)
  • Tulipa 'Peach Blossom' (2)
  • Tulipa 'Pinocchio' (14)
  • Tulipa 'Prinses Irene' (3)
  • Tulipa 'Purple Prince' (1)
  • Tulipa 'Red Riding Hood' (14)
  • Tulipa 'Stresa' (12)
  • Ugni molinae 'Flambeau' (v)
  • Umbilicus oppositifolius
  • Uncinia rubra
  • Uvularia grandiflora
  • Uvularia grandiflora var. pallida
  • Uvularia sessilifolia
  • Vaccinium corybosum Blue Suede = 'Th682' (F)
  • Vaccinium corymbosum 'Bluecrop' (F)
  • Vaccinium corymbosum 'Bluegold' (F)
  • Vaccinium corymbosum 'Darrow' (F)
  • Vaccinium corymbosum 'Jersey' (F)
  • Vaccinium corymbosum 'Legacy' (F)
  • Vaccinium corymbosum 'Patriot' (F)
  • Vaccinium corymbosum 'Stanley' (F)
  • Vaccinium glaucoalbum
  • Vaccinium macrocarpon (F)
  • Vaccinium ovatum 'Thundercloud' (F)
  • Vaccinium 'Bluejay' (F)
  • Vaccinium 'Brigitta' (F)
  • Vaccinium 'Earliblue' (F)
  • Vaccinium 'Northland' (F)
  • Vaccinium 'Ozarkblue' (F)
  • Vaccinium 'Pink Lemonade' (F)
  • Vaccinium 'Rubel' (F)
  • Verbascum chaixii 'Album'
  • Verbascum olympicum
  • Verbascum (Cotswold Group) 'Cotswold Beauty'
  • Verbascum (Cotswold Group) 'Cotswold Queen'
  • Verbascum (Cotswold Group) 'Gainsborough'
  • Verbascum (Cotswold Group) 'Mont Blanc'
  • Verbascum (Cotswold Group) 'Pink Domino'
  • Verbascum (Cotswold Group) 'Royal Highland'
  • Verbascum 'Firedance'
  • Verbascum 'Helen Johnson'
  • Verbascum 'June Johnson'
  • Verbascum 'Kynaston'
  • Verbascum 'Letitia'
  • Verbascum 'Merlin' (PBR)
  • Verbascum 'Pink Kisses'
  • Verbena bonariensis
  • Verbena bonariensis 'Lollipop' (PBR)
  • Verbena hastata
  • Verbena officinalis var. grandiflora 'Bampton'
  • Verbena rigida
  • Verbena rigida f. lilacina 'Polaris'
  • Veronica austriaca subsp. teucrium 'Kapitän'
  • Veronica austriaca subsp. teucrium 'Royal Blue'
  • Veronica gentianoides
  • Veronica gentianoides 'Barbara Sherwood'
  • Veronica gentianoides 'Mountain Breeze'
  • Veronica gentianoides 'Tissington White'
  • Veronica longifolia 'Blaubündel'
  • Veronica longifolia 'Marietta' (PBR)
  • Veronica longifolia 'Schneeriesin'
  • Veronica prostrata 'Blue Sheen'
  • Veronica prostrata 'Lavender Mist'
  • Veronica prostrata 'Lilac Time'
  • Veronica prostrata 'Mrs Holt'
  • Veronica prostrata 'Rhapsody in Blue'
  • Veronica prostrata 'Spode Blue'
  • Veronica prostrata 'Trehane'
  • Veronica spicata
  • Veronica spicata 'Glory' (PBR)
  • Veronica spicata 'Ulster Blue Dwarf'
  • Veronica umbrosa 'Georgia Blue'
  • Veronica × media First Glory = 'Alllord' (PBR)
  • Veronica × media First Lady = 'Alllady' (PBR)
  • Veronica × media First Love = 'Alllove' (PBR)
  • Veronica Inspire Blue = 'Yabblu' (PBR)
  • Veronica Inspire Pink = 'Yabpin' (PBR)
  • Veronicastrum sibiricum
  • Veronicastrum virginicum 'Album'
  • Veronicastrum virginicum 'Apollo'
  • Veronicastrum virginicum f. roseum 'Pink Glow'
  • Veronicastrum virginicum 'Fascination'
  • Veronicastrum virginicum 'Lavendelturm'
  • Viburnum davidii
  • Viburnum nudum 'Pink Beauty'
  • Viburnum opulus 'Roseum'
  • Viburnum plicatum f. plicatum 'Rosace'
  • Viburnum plicatum f. tomentosum Kilimanjaro Sunrise = 'Jww5' (PBR)
  • Viburnum plicatum f. tomentosum Kilimanjaro = 'Jww1' (PBR)
  • Viburnum plicatum f. tomentosum 'Elizabeth Bullivant'
  • Viburnum plicatum f. tomentosum 'Mariesii'
  • Viburnum plicatum f. tomentosum 'Summer Snowflake'
  • Viburnum tinus
  • Viburnum tinus Spirit = 'Anvi' (PBR)
  • Viburnum tinus 'Eve Price'
  • Viburnum tinus 'Peter's Purple'
  • Viburnum tinus 'Variegatum' (v)
  • Viburnum × bodnantense 'Charles Lamont'
  • Viburnum × bodnantense 'Dawn'
  • Viburnum × burkwoodii
  • Viburnum × burkwoodii 'Anne Russell'
  • Viburnum × burkwoodii 'Mohawk'
  • Viburnum × hillieri 'Winton'
  • Vinca major 'Wojo's Jem' (v)
  • Vinca minor 'Atropurpurea'
  • Vinca minor 'Azurea Flore Pleno' (d)
  • Vinca minor 'Bowles's Variety'
  • Vinca minor f. alba
  • Vinca minor f. alba 'Gertrude Jekyll'
  • Vinca minor 'Illumination' (v)
  • Vinca minor 'Ralph Shugert' (v)
  • Viola cornuta Alba Group (C)
  • Viola 'Columbine' (Va)
  • Viola 'Etain' (Va)
  • Viola 'Huntercombe Purple' (Va)
  • Viola 'Molly Sanderson' (Va)
  • Viola 'Moonlight' (Va)
  • Viola 'Myfawnny' (Va)
  • Viola 'Rebecca' (Vtta)
  • Vitex agnus-castus f. alba
  • Vitex agnus-castus f. latifolia
  • Vitis coignetiae
  • Vitis vinifera 'Cabernet Sauvignon' (O/B)
  • Vitis vinifera 'Gewürztraminer' (O/R)
  • Vitis vinifera 'Lakemont' (O/W/S)
  • Vitis vinifera 'Madeleine Angevine' (O/W)
  • Vitis vinifera 'Madeleine Silvaner' (O/W)
  • Vitis vinifera 'Merlot' (G/B)
  • Vitis vinifera 'Muscat of Alexandria' (G/W)
  • Vitis vinifera 'Purpurea' (O/B)
  • Vitis vinifera 'Sauvignon Blanc' (O/W)
  • Vitis Claret Cloak = 'Frovit'
  • Vitis 'Brant' (O/B)
  • Vitis 'Phönix' (O/W)
  • Waldsteinia ternata
  • Weigela florida Magical Rainbow = 'Kolmagira' (PBR)
  • Weigela florida Monet = 'Verweig' (PBR) (v)
  • Weigela florida 'Wings of Fire' (PBR)
  • Weigela middendorffiana 'Mango'
  • Weigela All Summer Red = 'Slingco 1' (PBR)
  • Weigela Black and White = 'Courtacad1' (PBR)
  • Weigela Ebony and Ivory = 'Velda' (PBR)
  • Weigela Pink Poppet = 'Plangen' (PBR)
  • Weigela 'Florida Variegata' (v)
  • Weigela 'Nana Variegata' (v)
  • Weigela 'Praecox Variegata' (v)
  • Wisteria brachybotrys 'Okayama'
  • Wisteria brachybotrys 'Showa-beni'
  • Wisteria floribunda f. multijuga
  • Wisteria floribunda 'Geisha'
  • Wisteria floribunda 'Yae-kokuryu' (d)
  • Wisteria frutescens 'Longwood Purple'
  • Wisteria frutescens 'Nivea'
  • Wisteria sinensis 'Amethyst'
  • Wisteria sinensis 'Prolific'
  • Wisteria sinensis var. sinensis f. alba
  • Wisteria × formosa 'Caroline'
  • Woodwardia fimbriata
  • Woodwardia orientalis
  • Woodwardia unigemmata
  • Yucca gloriosa 'Variegata' (v)
  • Zantedeschia aethiopica 'Childsiana'
  • Zantedeschia aethiopica 'Crowborough'
  • Zantedeschia aethiopica 'Green Goddess'
  • Zantedeschia aethiopica 'Marshmallow'
  • Zantedeschia aethiopica 'White Sail'
  • Zantedeschia 'Cantor' (PBR)
  • Zantedeschia 'Captain Prado' (PBR) (Captain Series)
  • Zantedeschia 'Kiwi Blush'
  • Zantedeschia 'Mercedes' (PBR)
  • Zenobia pulverulenta 'Raspberry Ripple'
  • Zephyranthes candida
  • Zigadenus elegans

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.