• 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

Langthorns Plantery

  • × Alcalthaea suffrutescens 'Parkallee' (d)
  • × Alcalthaea suffrutescens 'Parkrondell' (d)
  • × Alcalthaea suffrutescens 'Poetry'
  • × Amarine tubergenii 'Anastasia' (PBR) (Belladiva Series)
  • × Amarine tubergenii Belladiva Series
  • × Amarine tubergenii 'Emanuelle' (PBR) (Belladiva Series)
  • × Chitalpa tashkentensis Summer Bells = 'Minsum'
  • × Cuprocyparis leylandii 'Gold Rider'
  • × Fatshedera lizei 'Annemieke' (v)
  • × Fatshedera lizei 'Variegata' (v)
  • × Halimiocistus sahucii
  • × Halimiocistus wintonensis
  • × Halimiocistus wintonensis 'Merrist Wood Cream'
  • × Halimiocistus 'Ingwersenii'
  • × Heucherella 'Alabama Sunrise' (PBR)
  • × Heucherella 'Copper Cascade' (PBR) (Cascade Series)
  • × Heucherella 'Gold Cascade' (PBR) (Cascade Series)
  • × Heucherella 'Kimono' (PBR)
  • × Heucherella 'Solar Power' (PBR)
  • × Heucherella 'Stoplight' (PBR)
  • × Heucherella 'Sweet Tea' (PBR)
  • × Heucherella 'Tapestry' (PBR)
  • × Mukgenia 'Flame'
  • × Rhaphiobotrya 'Coppertone'
  • Abelia chinensis R. Br.
  • Abelia mosanensis
  • Abelia × grandiflora Confetti = 'Conti' (PBR) (v)
  • Abelia × grandiflora 'Francis Mason' (v)
  • Abelia × grandiflora 'Hopleys' (PBR) (v)
  • Abelia × grandiflora 'Kaleidoscope' (PBR) (v)
  • Abelia × grandiflora 'Sparkling Silver' (v)
  • Abelia 'Edward Goucher'
  • Abeliophyllum distichum
  • Abeliophyllum distichum Roseum Group
  • Abies balsamea (Hudsonia Group) 'Nana'
  • Abies koreana
  • Abies nordmanniana
  • Abies pinsapo 'Aurea'
  • Abies pinsapo 'Glauca'
  • Abies procera (Glauca Group) 'Glauca'
  • Abutilon megapotamicum
  • Abutilon 'Ashford Red'
  • Abutilon 'Kentish Belle'
  • Abutilon 'Nabob'
  • Abutilon 'Tango'
  • Abutilon 'Waltz'
  • Acacia baileyana
  • Acacia baileyana 'Purpurea'
  • Acacia dealbata
  • Acacia longifolia
  • Acacia pravissima
  • Acacia verticillata
  • Acaena inermis 'Purpurea'
  • Acaena microphylla 'Kupferteppich'
  • Acanthus hungaricus
  • Acanthus mollis
  • Acanthus mollis 'Hollard's Gold'
  • Acanthus spinosus L.
  • Acanthus 'Morning's Candle'
  • Acanthus 'Whitewater' (v)
  • Acca sellowiana (F)
  • Acer campestre
  • Acer campestre 'Carnival' (v)
  • Acer campestre 'Postelense'
  • Acer capillipes
  • Acer cappadocicum 'Aureum'
  • Acer cappadocicum 'Rubrum'
  • Acer davidii 'George Forrest'
  • Acer griseum
  • Acer grosseri var. hersii
  • Acer japonicum 'Aconitifolium'
  • Acer japonicum 'Vitifolium'
  • Acer negundo 'Flamingo' (v)
  • Acer negundo 'Kelly's Gold'
  • Acer negundo var. violaceum
  • Acer palmatum 'Atropurpureum' (A)
  • Acer palmatum 'Aureum' (P)
  • Acer palmatum 'Bi Ho' (P)
  • Acer palmatum 'Bloodgood' (A)
  • Acer palmatum 'Burgundy Lace' (M)
  • Acer palmatum 'Butterfly' (P/v)
  • Acer palmatum 'Crimson Queen' (D)
  • Acer palmatum Dissectum Viride Group
  • Acer palmatum 'Garnet' (D)
  • Acer palmatum 'Inaba-shidare' (D)
  • Acer palmatum 'Katsura' (P)
  • Acer palmatum 'Koto-no-ito' (L)
  • Acer palmatum 'Orange Dream' (P)
  • Acer palmatum 'Oridono-nishiki' (P/v)
  • Acer palmatum 'Osakazuki' (A)
  • Acer palmatum 'Pévé Dave'
  • Acer palmatum 'Red Pygmy' (L)
  • Acer palmatum 'Sango-kaku' (P)
  • Acer palmatum 'Seiryu' (D)
  • Acer palmatum 'Skeeter's Broom' (Dw)
  • Acer palmatum 'Trompenburg' (M)
  • Acer platanoides Princeton Gold = 'Prigo' (PBR)
  • Acer platanoides 'Crimson King'
  • Acer platanoides 'Crimson Sentry'
  • Acer platanoides 'Drummondii' (v)
  • Acer pseudoplatanus 'Brilliantissimum'
  • Acer pseudoplatanus f. variegatum 'Esk Sunset' (v)
  • Acer rubrum 'October Glory'
  • Acer rubrum 'Scanlon'
  • Acer shirasawanum 'Aureum'
  • Acer shirasawanum 'Jordan'
  • Achillea ageratifolia
  • Achillea filipendulina 'Cloth of Gold'
  • Achillea filipendulina 'Gold Plate'
  • Achillea millefolium 'Apricot Delight' (Tutti Frutti Series)
  • Achillea millefolium 'Cerise Queen'
  • Achillea millefolium 'Red Velvet'
  • Achillea millefolium 'Summer Fruits Carmine' (Summer Fruits Series)
  • Achillea millefolium 'Summer Fruits Lemon' (Summer Fruits Series)
  • Achillea millefolium 'Summer Fruits Salmon' (Summer Fruits Series)
  • Achillea millefolium 'Wonderful Wampee' (Tutti Frutti Series)
  • Achillea ptarmica (The Pearl Group) 'Boule de Neige' (clonal) (d)
  • Achillea ptarmica The Pearl Group seed-raised (d)
  • Achillea × lewisii 'King Edward'
  • Achillea 'Apfelblüte' (Galaxy Series)
  • Achillea 'Coronation Gold'
  • Achillea 'Credo'
  • Achillea 'Fanal'
  • Achillea 'Lachsschönheit' (Galaxy Series)
  • Achillea 'Moonshine'
  • Achillea 'Paprika' (Galaxy Series)
  • Achillea 'Saucy Seduction' (Seduction Series)
  • Achillea 'Taygetea'
  • Achillea 'Terracotta'
  • Achillea 'Walther Funcke'
  • Acis autumnalis
  • Acis autumnalis 'September Snow'
  • Aconitum carmichaelii
  • Aconitum carmichaelii (Arendsii Group) 'Arendsii'
  • Aconitum 'Bressingham Spire'
  • Aconitum 'Newry Blue'
  • Aconitum 'Spark's Variety'
  • Acorus gramineus 'Ogon' (v)
  • Acorus gramineus 'Variegatus' (v)
  • Actaea matsumurae 'White Pearl'
  • Actaea pachypoda Misty Blue = 'Lk05' (PBR)
  • Actaea racemosa
  • Actaea rubra
  • Actaea simplex (Atropurpurea Group) 'Black Negligee'
  • Actaea simplex (Atropurpurea Group) 'Brunette'
  • Actaea simplex (Atropurpurea Group) 'Carbonella'
  • Actaea simplex Atropurpurea Group
  • Actaea 'Chocoholic'
  • Actinidia deliciosa 'Jenny' (s-p/F)
  • Actinidia kolomikta
  • Actinidia pilosula (Finet & Gagnep.) Stapf ex Hand.-Mazz.
  • Adiantum aleuticum 'Imbricatum'
  • Adiantum pedatum L.
  • Aeonium arboreum
  • Aeonium arboreum 'Atropurpureum'
  • Aeonium arboreum 'Tip Top'
  • Aeonium simsii × 'Zwartkop'
  • Aeonium 'Voodoo'
  • Aesculus hippocastanum
  • Aesculus hippocastanum 'Baumannii' (d)
  • Aesculus indica
  • Aesculus indica 'Sydney Pearce'
  • Aesculus parviflora
  • Aesculus pavia var. discolor 'Koehnei'
  • Aesculus × carnea 'Briotii'
  • Aethionema 'Warley Rose'
  • Agapanthus campanulatus
  • Agapanthus campanulatus 'Cobalt Blue'
  • Agapanthus campanulatus var. albidus
  • Agapanthus Queen Mum = 'Pmn06' (PBR)
  • Agapanthus Silver Moon = 'Notfred' (PBR) (v)
  • Agapanthus 'Arctic Star'
  • Agapanthus 'B in B' (PBR)
  • Agapanthus 'Black Magic'
  • Agapanthus 'Black Pantha' (PBR)
  • Agapanthus 'Blue Baby' Rom.
  • Agapanthus 'Blue Giant'
  • Agapanthus 'Charlotte' (PBR)
  • Agapanthus 'Gayle's Lilac'
  • Agapanthus Headbourne hybrids
  • Agapanthus 'Jack's Blue'
  • Agapanthus 'Lilliput'
  • Agapanthus 'Midnight Blue' ambig.
  • Agapanthus 'Midnight Star'
  • Agapanthus 'Northern Star' (PBR)
  • Agapanthus 'Peter Pan' ambig.
  • Agapanthus 'Purple Cloud'
  • Agapanthus 'Summer Clouds'
  • Agapanthus 'Timaru'
  • Agapanthus 'Tinkerbell' (v)
  • Agapanthus 'White Umbrella'
  • Agapanthus 'Windsor Grey'
  • Agastache foeniculum (Pursh) Kuntze
  • Agastache mexicana 'Red Fortune' (PBR)
  • Agastache rugosa f. albiflora 'Liquorice White'
  • Agastache rugosa 'Golden Jubilee'
  • Agastache rugosa 'Liquorice Blue'
  • Agastache 'Firebird'
  • Agastache 'Kudos Ambrosia' (PBR) (Kudos Series)
  • Agastache 'Kudos Coral' (PBR) (Kudos Series)
  • Agastache 'Kudos Gold' (PBR) (Kudos Series)
  • Agastache 'Kudos Mandarin' (PBR) (Kudos Series)
  • Agastache 'Kudos Silver Blue' (Kudos Series)
  • Agastache 'Kudos Yellow' (PBR) (Kudos Series)
  • Agave americana 'Mediopicta Alba' (v)
  • Agave americana 'Variegata' (v)
  • Ageratina altissima 'Chocolate'
  • Ageratina ligustrina
  • Agrostemma githago
  • Ajuga pyramidalis 'Metallica Crispa'
  • Ajuga reptans Black Scallop = 'Binblasca' (PBR)
  • Ajuga reptans 'Atropurpurea'
  • Ajuga reptans 'Braunherz'
  • Ajuga reptans 'Burgundy Glow' (v)
  • Ajuga reptans 'Catlin's Giant'
  • Ajuga reptans 'Golden Glow' (v)
  • Ajuga reptans 'Multicolor' (v)
  • Ajuga Sugar Plum = 'Binsugplu' (PBR) (v)
  • Ajuga 'Pink Lightning' (v)
  • Akebia quinata
  • Akebia quinata 'Amethyst Glow'
  • Akebia trifoliata
  • Akebia × pentaphylla
  • Albizia julibrissin Chocolate Fountain = 'Ncaj1'
  • Albizia julibrissin Ombrella = 'Boubri' (PBR)
  • Albizia julibrissin 'Evy's Purple'
  • Albizia julibrissin f. rosea
  • Albizia julibrissin 'Shidare'
  • Albizia julibrissin 'Summer Chocolate' (PBR)
  • Albuca humilis
  • Alcea rosea 'Blacknight' (Spotlight Series)
  • Alcea rosea Chater's Double Group pink-flowered (d)
  • Alcea rosea Chater's Double Group red-flowered (d)
  • Alcea rosea Chater's Double Group white-flowered (d)
  • Alcea rosea 'Crème de Cassis'
  • Alcea rosea 'Mars Magic' (Spotlight Series)
  • Alcea rosea 'Nigra'
  • Alcea rosea 'Polarstar' (Spotlight Series)
  • Alcea rosea 'Radiant Rose' (Spotlight Series)
  • Alchemilla alpina L.
  • Alchemilla conjuncta
  • Alchemilla epipsila
  • Alchemilla erythropoda
  • Alchemilla mollis
  • Alchemilla sericata 'Gold Strike'
  • Allium ampeloprasum 'White Cloud'
  • Allium amplectens 'Graceful Beauty'
  • Allium atropurpureum
  • Allium cernuum
  • Allium cernuum 'White Dwarf'
  • Allium cristophii
  • Allium giganteum
  • Allium hollandicum 'Purple Sensation'
  • Allium hookeri 'Zorami'
  • Allium karataviense
  • Allium schubertii
  • Allium siculum
  • Allium sphaerocephalon
  • Allium triquetrum
  • Allium vineale 'Hair'
  • Allium 'Ambassador'
  • Allium 'Beau Regard'
  • Allium 'Globemaster'
  • Allium 'Mont Blanc'
  • Allium 'Powder Puff'
  • Allium 'Purple Rain'
  • Alnus cordata
  • Alnus glutinosa 'Imperialis'
  • Alnus incana 'Aurea'
  • Alnus rubra
  • Aloe vera
  • Aloysia citrodora
  • Aloysia citrodora 'Spilsbury Mint'
  • Alstroemeria aurea 'Orange King'
  • Alstroemeria Indian Summer = 'Tesronto' (PBR) (Summer Paradise Series)
  • Alstroemeria Rock 'n' Roll = 'Alsdun01' (PBR) (v)
  • Alstroemeria 'Apollo'
  • Alstroemeria 'Avanti'
  • Alstroemeria 'Christina' (PBR) (Little Miss Series)
  • Alstroemeria 'Friendship'
  • Alstroemeria 'Gloria'
  • Alstroemeria 'Golden Delight'
  • Alstroemeria 'Red Beauty'
  • Alstroemeria 'Rhubarb and Custard'
  • Alstroemeria 'Roselind' (Little Miss Series)
  • Alstroemeria 'Sophie' (PBR) (Little Miss Series)
  • Alstroemeria 'Sweet Laura' (PBR)
  • Alstroemeria 'Tara' (PBR) (Little Miss Series)
  • Althaea cannabina
  • Althaea officinalis
  • Alyogyne Magic Moments = 'Hutwow'
  • Alyssum montanum 'Berggold'
  • Amelanchier alnifolia 'Obelisk' (PBR)
  • Amelanchier canadensis (L.) Medik.
  • Amelanchier lamarckii
  • Amelanchier × grandiflora 'Ballerina'
  • Amelanchier × grandiflora 'Robin Hill'
  • Ampelopsis brevipedunculata
  • Ampelopsis brevipedunculata 'Elegans' (v)
  • Amsonia orientalis
  • Amsonia tabernaemontana
  • Amsonia 'Blue Ice'
  • Anacyclus pyrethrum var. depressus
  • Anaphalis triplinervis
  • Anchusa azurea 'Feltham Pride'
  • Anchusa azurea 'Loddon Royalist'
  • Andromeda polifolia 'Blue Ice'
  • Andromeda polifolia 'Compacta'
  • Androsace carnea × pyrenaica
  • Androsace sempervivoides
  • Androsace septentrionalis 'Stardust'
  • Anemanthele lessoniana
  • Anemone blanda blue-flowered
  • Anemone blanda 'White Splendour'
  • Anemone hupehensis 'Hadspen Abundance'
  • Anemone hupehensis var. japonica 'Bressingham Glow'
  • Anemone hupehensis var. japonica 'Pamina'
  • Anemone hupehensis var. japonica 'Prinz Heinrich'
  • Anemone hupehensis var. japonica 'Splendens'
  • Anemone nemorosa
  • Anemone nemorosa 'Gerda Ramusen'
  • Anemone sylvestris
  • Anemone × hybrida 'Andrea Atkinson'
  • Anemone × hybrida 'Honorine Jobert'
  • Anemone × hybrida 'Königin Charlotte'
  • Anemone × hybrida 'Margarete' Kayser & Seibert
  • Anemone × hybrida 'Montrose'
  • Anemone × hybrida 'September Charm'
  • Anemone × hybrida 'Serenade'
  • Anemone × hybrida 'Whirlwind'
  • Anemone Dreaming Swan = 'Macane004' (PBR)
  • Anemonella thalictroides f. rosea
  • Angelica archangelica
  • Angelica gigas
  • Angelica sylvestris 'Vicar's Mead'
  • Angelica taiwaniana
  • Anisodontea capensis
  • Anisodontea 'El Rayo'
  • Anthemis punctata subsp. cupaniana
  • Anthemis tinctoria 'E.C. Buxton'
  • Anthemis tinctoria 'Sauce Hollandaise'
  • Anthemis tinctoria 'Wargrave Variety'
  • Anthemis 'Tetworth'
  • Anthericum liliago
  • Anthriscus sylvestris 'Golden Fleece'
  • Anthriscus sylvestris 'Ravenswing'
  • Anthyllis hermanniae 'Minor'
  • Anthyllis vulneraria var. coccinea
  • Antirrhinum majus 'Black Prince'
  • Aquilegia canadensis
  • Aquilegia skinneri 'Tequila Sunrise'
  • Aquilegia vulgaris 'Nivea'
  • Aquilegia vulgaris var. stellata 'Black Barlow' (Barlow Series) (d)
  • Aquilegia vulgaris var. stellata 'Nora Barlow' (Barlow Series) (d)
  • Aquilegia vulgaris var. stellata 'Ruby Port' (d)
  • Aquilegia vulgaris 'William Guiness'
  • Aquilegia 'Blue Star' (Star Series)
  • Aquilegia 'Crimson Star'
  • Aquilegia 'Dragonfly'
  • Aquilegia 'Hensol Harebell'
  • Aquilegia McKana Group
  • Aquilegia 'Red Hobbit'
  • Aquilegia 'White Star' (Star Series)
  • Arabis alpina subsp. caucasica 'Flore Pleno' (d)
  • Arabis alpina subsp. caucasica 'Variegata' (v)
  • Arabis blepharophylla 'Frühlingszauber'
  • Arabis blepharophylla 'Rote Sensation'
  • Arabis ferdinandi-coburgi 'Aureovariegata' (v)
  • Arabis procurrens 'Variegata' (v)
  • Aralia elata
  • Aralia elata 'Aureovariegata' (v)
  • Aralia elata 'Variegata' (v)
  • Araucaria araucana
  • Arbutus unedo
  • Arbutus unedo Roselily = 'Minlily' (PBR)
  • Arbutus unedo 'Compacta'
  • Arbutus unedo 'Elfin King'
  • Arbutus unedo f. rubra
  • Arbutus unedo 'Quercifolia'
  • Arbutus × andrachnoides
  • Arbutus × reyorum 'Marina'
  • Arctostaphylos uva-ursi 'Vancouver Jade'
  • Argemone mexicana
  • Argyrocytisus battandieri
  • Argyrocytisus battandieri 'Yellow Tail'
  • Armeria juniperifolia
  • Armeria juniperifolia 'Alba'
  • Armeria juniperifolia 'Bevan's Variety'
  • Armeria maritima
  • Armeria maritima 'Alba'
  • Armeria maritima 'Bloodstone'
  • Armeria maritima 'Düsseldorfer Stolz'
  • Armeria maritima 'Nifty Thrifty' (v)
  • Armeria 'Joystick Lilac Shades' (Joystick Series)
  • Armeria 'Joystick Red' (Joystick Series)
  • Armeria 'Joystick White' (Joystick Series)
  • Armoracia rusticana
  • Armoracia rusticana 'Variegata' (v)
  • Aronia arbutifolia 'Erecta'
  • Aronia melanocarpa
  • Aronia × prunifolia 'Autumn Magic'
  • Aronia × prunifolia 'Brilliant'
  • Aronia × prunifolia 'Nero' (F)
  • Arrhenatherum elatius var. bulbosum 'Variegatum' (v)
  • Artemisia absinthium
  • Artemisia absinthium 'Lambrook Mist'
  • Artemisia absinthium 'Lambrook Silver'
  • Artemisia lactiflora Guizhou Group
  • Artemisia ludoviciana 'Silver Queen'
  • Artemisia ludoviciana 'Valerie Finnis'
  • Artemisia schmidtiana 'Nana'
  • Artemisia vulgaris 'Variegata' (v)
  • Artemisia 'Powis Castle'
  • Arum italicum subsp. italicum 'Marmoratum'
  • Aruncus aethusifolius
  • Aruncus dioicus (m)
  • Aruncus dioicus 'Kneiffii'
  • Aruncus 'Horatio'
  • Aruncus 'Misty Lace'
  • Aruncus 'Sparkles'
  • Arundo donax
  • Arundo donax var. versicolor (v)
  • Asarum caudatum
  • Asarum epigynum 'Silver Web'
  • Asarum europaeum
  • Asarum maximum 'Silver Panda'
  • Asarum splendens
  • Asparagus officinalis 'Connover's Colossal'
  • Asperula daphneola
  • Asperula gussonei
  • Asperula lilaciflora subsp. lilaciflora
  • Asperula nitida
  • Asphodeline lutea
  • Asplenium scolopendrium Crispum Group
  • Asplenium scolopendrium Cristatum Group
  • Asplenium scolopendrium 'Furcatum'
  • Asplenium scolopendrium 'Muricatum'
  • Asplenium trichomanes
  • Astelia chathamica
  • Aster alpinus 'Goliath'
  • Aster alpinus 'Pinkie'
  • Aster alpinus var. albus
  • Aster amellus 'King George'
  • Aster amellus 'Rosa Erfüllung'
  • Aster amellus 'Rudolph Goethe'
  • Aster amellus 'Veilchenkönigin'
  • Aster × frikartii 'Jungfrau'
  • Aster × frikartii 'Mönch'
  • Astilbe chinensis var. pumila
  • Astilbe chinensis var. taquetii
  • Astilbe chinensis 'Vision in Pink' (PBR)
  • Astilbe chinensis 'Vision in Red' (PBR)
  • Astilbe chinensis 'Visions'
  • Astilbe simplicifolia 'White Sensation' (PBR)
  • Astilbe 'Bressingham Beauty' (× arendsii)
  • Astilbe 'Ellie' (× arendsii)
  • Astilbe 'Fanal' (× arendsii)
  • Astilboides tabularis
  • Astrantia major
  • Astrantia major 'Star of Beauty' (PBR) (Sparkling Stars Series)
  • Astrantia major 'Star of Billion' (PBR)
  • Astrantia major 'Sunningdale Variegated' (v)
  • Astrantia maxima
  • Astrantia 'Buckland'
  • Astrantia 'Moulin Rouge' (PBR)
  • Astrantia 'Roma' (PBR)
  • Astrantia 'Snow Star' (PBR)
  • Astrantia 'Star of Passion' (PBR)
  • Astrantia 'Star of Treasure' (PBR)
  • Astrantia 'Superstar' (PBR)
  • Athyrium filix-femina
  • Athyrium filix-femina Cristatum Group
  • Athyrium filix-femina 'Frizelliae'
  • Athyrium filix-femina 'Minutissimum'
  • Athyrium filix-femina subsp. angustum f. rubellum 'Lady in Red'
  • Athyrium filix-femina 'Victoriae'
  • Athyrium niponicum var. pictum
  • Athyrium niponicum var. pictum 'Red Beauty'
  • Athyrium niponicum var. pictum 'Ursula's Red'
  • Athyrium otophorum var. okanum
  • Atriplex hortensis var. rubra
  • Aubrieta gracilis 'Kitte'
  • Aubrieta gracilis 'Kitte Blue'
  • Aubrieta gracilis 'Kitte Blue Blush Bicolour'
  • Aubrieta gracilis 'Kitte Purple'
  • Aubrieta gracilis 'Kitte Rose Blush Bicolour'
  • Aubrieta gracilis 'Kitte Rose Red'
  • Aubrieta 'Doctor Mules Variegata' (v)
  • Aubrieta double pink-flowered (d)
  • Aubrieta 'Hamburger Stadtpark'
  • Aubrieta 'Red Cascade' (Cascade Series)
  • Aubrieta 'Royal Blue' (Royal Series)
  • Aubrieta 'Royal Red' (Royal Series)
  • Aubrieta 'Royal Violet' (Royal Series)
  • Aubrieta 'Somerfield Silver'
  • Aubrieta 'Somerford Lime' (v)
  • Aucuba japonica 'Crotonifolia' (f/v)
  • Aucuba japonica 'Golden King' (m/v)
  • Aucuba japonica 'Picturata' (m/v)
  • Aucuba japonica 'Rozannie' (f)
  • Aucuba japonica 'Variegata' (f/v)
  • Aurinia saxatilis
  • Azara microphylla
  • Azara microphylla 'Variegata' (v)
  • Azara serrata
  • Ballota pseudodictamnus
  • Baptisia australis
  • Baptisia 'Dutch Chocolate' (Decadence Series)
  • Baptisia 'Lemon Meringue'
  • Begonia grandis subsp. evansiana
  • Begonia luxurians
  • Begonia 'Lucerna' (C)
  • Berberidopsis corallina
  • Berberis darwinii
  • Berberis darwinii 'Compacta'
  • Berberis dictyophylla
  • Berberis julianae
  • Berberis thunbergii Bonanza Gold = 'Bogozam' (PBR)
  • Berberis thunbergii 'Aurea'
  • Berberis thunbergii f. atropurpurea
  • Berberis thunbergii f. atropurpurea 'Admiration' (PBR)
  • Berberis thunbergii f. atropurpurea 'Bagatelle'
  • 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 'Pink Queen' (v)
  • Berberis thunbergii f. atropurpurea 'Red Chief'
  • Berberis thunbergii f. atropurpurea 'Red Pillar'
  • Berberis thunbergii f. atropurpurea 'Rose Glow' (v)
  • Berberis thunbergii f. atropurpurea 'Rosy Rocket' (PBR) (v)
  • Berberis thunbergii 'Golden Rocket' (PBR)
  • Berberis thunbergii 'Golden Torch'
  • Berberis thunbergii 'Orange Rocket' (PBR)
  • Berberis thunbergii 'Pow-wow'
  • Berberis thunbergii 'Tiny Gold' (PBR)
  • Berberis trigona 'Orange King'
  • Berberis wilsoniae
  • Berberis × lologensis 'Stapehill'
  • Berberis × ottawensis f. purpurea 'Superba'
  • Berberis × stenophylla 'Claret Cascade'
  • Berberis × stenophylla 'Corallina Compacta'
  • Berberis × stenophylla 'Etna'
  • Bergenia cordifolia
  • Bergenia cordifolia 'Purpurea'
  • Bergenia 'Abendglut'
  • Bergenia 'Angel Kiss' (Dragonfly Series)
  • Bergenia 'Bressingham White'
  • Bergenia 'Eden's Dark Margin'
  • Bergenia 'Eden's Magic Giant'
  • Bergenia 'Eroica'
  • Bergenia 'Harzkristall'
  • Bergenia 'Ice Queen'
  • Bergenia 'Overture'
  • Bergenia 'Silberlicht'
  • Bergenia 'Wintermärchen'
  • Betonica macrantha 'Robusta'
  • Betonica macrantha 'Rosea'
  • Betula ermanii
  • Betula nigra
  • Betula papyrifera
  • Betula pendula
  • Betula pendula subsp. pendula Fastigiata Joes = 'Jolep 1' (PBR)
  • Betula pendula subsp. pendula 'Fastigiata'
  • Betula pendula subsp. pendula 'Laciniata'
  • Betula pendula subsp. pendula 'Purpurea'
  • Betula pendula subsp. pendula 'Spider Alley' (PBR)
  • Betula pendula subsp. pendula 'Tristis'
  • Betula pendula subsp. pendula 'Youngii'
  • Betula utilis subsp. albosinensis (Burkill) Ashburner & McAll.
  • Betula utilis subsp. jacquemontii
  • Betula utilis subsp. jacquemontii 'Doorenbos'
  • Betula utilis subsp. jacquemontii 'Grayswood Ghost'
  • Betula utilis subsp. jacquemontii 'Silver Shadow'
  • Betula utilis subsp. jacquemontii 'Trinity College'
  • Betula utilis subsp. utilis 'Nepalese Orange'
  • Bidens aurea 'Hannay's Lemon Drop'
  • Billbergia nutans 'Variegata' (v)
  • Blechnum chilense
  • Blechnum penna-marina
  • Blechnum spicant
  • Bletilla striata 'Albostriata'
  • Bletilla striata f. gebina
  • Boltonia asteroides var. latisquama 'Snowbank'
  • Brachyglottis monroi
  • Brachyglottis rotundifolia
  • Brachyglottis (Dunedin Group) 'Drysdale'
  • Brachyglottis (Dunedin Group) 'Sunshine'
  • Brachyglottis Walberton's Silver Dormouse = 'Walbrach' (PBR)
  • Briza media
  • Briza media 'Russells' (PBR)
  • Broussonetia papyrifera
  • Brugmansia arborea 'Rosea' variegated (v)
  • Brugmansia arborea variegated (v)
  • Brugmansia × candida 'Angels Sunbeam' (d)
  • Brugmansia 'Yellow Trumpet'
  • Brunnera macrophylla
  • Brunnera macrophylla 'Alexanders Great' (PBR)
  • Brunnera macrophylla 'Dawson's White' (v)
  • Brunnera macrophylla 'Hadspen Cream' (v)
  • Brunnera macrophylla 'Jack Frost' (PBR)
  • Brunnera macrophylla 'Looking Glass' (PBR)
  • Buddleja alternifolia
  • Buddleja alternifolia 'Argentea'
  • Buddleja auriculata
  • Buddleja colvilei
  • Buddleja colvilei 'Kewensis'
  • Buddleja crispa
  • Buddleja davidii Buzz Candy Pink = 'Tobudsopin' (Buzz Series)
  • Buddleja davidii Buzz Hot Raspberry (Buzz Series)
  • Buddleja davidii Buzz Indigo (Buzz Series)
  • Buddleja davidii Buzz Ivory = 'Tobudivory' (PBR) (Buzz Series)
  • Buddleja davidii Buzz Lilac (Buzz Series)
  • Buddleja davidii Buzz Magenta = 'Tobudpipur' (PBR) (Buzz Series)
  • Buddleja davidii Buzz Velvet = 'Tobudvelve' (PBR) (Buzz Series)
  • Buddleja davidii Buzz Violet = 'Tobudviole' (Buzz Series)
  • Buddleja davidii 'Black Knight'
  • Buddleja davidii 'Dartmoor'
  • Buddleja davidii 'Harlequin' (v)
  • Buddleja davidii 'Royal Red'
  • Buddleja davidii 'White Ball'
  • Buddleja davidii 'White Profusion'
  • Buddleja fallowiana var. alba
  • Buddleja globosa
  • Buddleja × weyeriana 'Moonlight'
  • Buddleja × weyeriana 'Sungold'
  • Buddleja 'Lochinch'
  • Buddleja 'Pink Delight'
  • Buphthalmum salicifolium
  • Bupleurum fruticosum
  • Bupleurum longifolium 'Bronze Beauty'
  • Buxus sempervirens
  • Buxus sempervirens 'Elegantissima' (v)
  • Buxus sempervirens 'Rotundifolia'
  • Buxus sempervirens 'Suffruticosa'
  • Calamagrostis brachytricha
  • Calamagrostis × acutiflora 'Karl Foerster'
  • Calamagrostis × acutiflora 'Overdam' (v)
  • Calamintha nepeta subsp. glandulosa 'White Cloud'
  • Calamintha nepeta subsp. nepeta
  • Calceolaria integrifolia
  • Calceolaria (Fruticohybrida Group) 'Kentish Hero'
  • Callicarpa bodinieri var. giraldii 'Profusion'
  • Callicarpa japonica 'Leucocarpa'
  • Callistemon citrinus 'Splendens'
  • Callistemon citrinus 'White Anzac'
  • Callistemon linearis
  • Callistemon pallidus
  • Callistemon pityoides
  • Callistemon rigidus
  • Callistemon 'Mauve Mist'
  • Callistemon 'Perth Pink'
  • Callistemon 'Red Clusters'
  • Calluna vulgaris 'County Wicklow' (d)
  • Calluna vulgaris 'Dark Beauty' (PBR) (d)
  • Calluna vulgaris 'Elsie Purnell' (d)
  • Calluna vulgaris 'Ralph Purnell'
  • Calluna vulgaris 'Silver Knight'
  • Calluna vulgaris 'White Coral' (d)
  • Calluna vulgaris 'Wickwar Flame'
  • Caltha palustris
  • Caltha palustris 'Flore Pleno' (d)
  • Caltha palustris var. alba
  • Calycanthus × raulstonii 'Hartlage Wine'
  • Calycanthus 'Aphrodite'
  • Calycanthus 'Venus'
  • Camassia cusickii
  • Camassia leichtlinii subsp. leichtlinii
  • Camassia leichtlinii subsp. suksdorfii Caerulea Group
  • Camassia quamash
  • Camassia 'Blue Heaven'
  • Camellia japonica 'Brushfield's Yellow'
  • Camellia japonica 'Margaret Davis'
  • Camellia japonica 'Nuccio's Cameo'
  • Camellia rosthorniana 'Elina' (PBR)
  • Camellia sasanqua 'Hugh Evans'
  • Camellia sasanqua 'Rainbow'
  • Camellia × williamsii 'Donation'
  • Camellia × williamsii 'E.G. Waterhouse'
  • Camellia 'Black Lace'
  • Camellia 'Spring Festival' (cuspidata hybrid)
  • Campanula alliariifolia
  • Campanula cochlearifolia
  • Campanula cochlearifolia 'Elizabeth Oliver' (d)
  • Campanula cochlearifolia 'Tubby'
  • Campanula cochlearifolia var. alba
  • Campanula garganica 'Dickson's Gold'
  • Campanula glomerata 'Superba'
  • Campanula glomerata var. alba
  • Campanula lactiflora 'Alba'
  • Campanula lactiflora 'Loddon Anna'
  • Campanula lactiflora 'Prichard's Variety'
  • Campanula latifolia var. macrantha 'Alba'
  • Campanula latiloba 'Hidcote Amethyst'
  • Campanula makaschvilii
  • Campanula persicifolia 'Takion Blue' (Takion Series)
  • Campanula persicifolia 'Takion White' (Takion Series)
  • Campanula portenschlagiana
  • Campanula portenschlagiana 'Resholdt's Variety'
  • Campanula poscharskyana
  • Campanula poscharskyana 'E.H. Frost'
  • Campanula poscharskyana 'Stella'
  • Campanula pulla
  • Campanula punctata f. rubriflora
  • Campanula pyramidalis
  • Campanula pyramidalis 'Alba'
  • Campanula rotundifolia
  • Campanula rotundifolia 'White Gem'
  • Campanula takesimana
  • Campanula trachelium 'Bernice' (d)
  • Campanula trachelium f. alba
  • Campanula zangezura
  • Campanula × haylodgensis 'Yvonne'
  • Campanula 'Birch Hybrid'
  • Campanula 'Pink Octopus' (PBR)
  • Campanula 'Ringsabell Indigo Blue' (Ringsabell Series)
  • Campanula 'Ringsabell Mulberry Rose' (Ringsabell Series)
  • Campanula 'Ringsabell Opal White' (Ringsabell Series)
  • Campanula 'Sarastro'
  • Campanula 'Summertime Blues' (PBR)
  • Campsis grandiflora
  • Campsis radicans
  • Campsis radicans f. flava
  • Campsis radicans 'Flamenco'
  • Campsis × tagliabuana 'Madame Galen'
  • Canna Tropicanna Black = 'Lon01' (PBR)
  • Canna 'E. Neubert'
  • Canna 'Happy Carmen' (CannaSol Series)
  • Canna 'Phasion' (v)
  • Caragana arborescens
  • Caragana arborescens 'Pendula'
  • Caragana arborescens 'Walker'
  • Carex buchananii
  • Carex comans bronze-leaved
  • Carex comans 'Frosted Curls'
  • Carex conica 'Snowline' (v)
  • Carex elata 'Aurea'
  • Carex flacca 'Blue Zinger'
  • Carex flagellifera
  • Carex morrowii 'Variegata' (v)
  • Carex muskingumensis
  • Carex oshimensis 'Evergold' (v)
  • Carex pendula
  • Carex siderosticta 'Variegata' (v)
  • Carex testacea
  • Carex Milk Chocolate = 'Milchoc' (PBR) (v)
  • Carex 'Ice Dance' (v)
  • Carpenteria californica
  • Carpenteria californica 'Bodnant'
  • Carpinus betulus
  • Carpinus betulus 'Fastigiata'
  • Caryopteris incana 'Blue Cascade'
  • Caryopteris × clandonensis Grand Bleu = 'Inoveris' (PBR)
  • Caryopteris × clandonensis Hint of Gold = 'Lisaura' (PBR)
  • Caryopteris × clandonensis Pink Perfection = 'Lisspin' (PBR)
  • Caryopteris × clandonensis Stephi = 'Lissteph' (PBR)
  • Caryopteris × clandonensis 'Dark Knight'
  • Caryopteris × clandonensis 'Heavenly Blue'
  • Caryopteris × clandonensis 'Kew Blue'
  • Caryopteris × clandonensis 'Summer Sorbet' (PBR) (v)
  • Caryopteris × clandonensis weeping
  • Caryopteris × clandonensis 'Worcester Gold'
  • Castanea sativa
  • Castanea sativa 'Variegata' (v)
  • Catalpa bignonioides
  • Catalpa bignonioides 'Aurea'
  • Catalpa bignonioides 'Nana'
  • Catalpa × erubescens 'Purpurea'
  • Catananche caerulea
  • Catananche caerulea 'Alba'
  • Cautleya spicata 'Robusta'
  • Ceanothus arboreus 'Trewithen Blue'
  • Ceanothus thyrsiflorus 'Millerton Point'
  • Ceanothus thyrsiflorus 'Snow Flurry'
  • Ceanothus thyrsiflorus var. repens
  • Ceanothus × delileanus 'Gloire de Versailles'
  • Ceanothus × delileanus 'Henri Desfossé'
  • Ceanothus × delileanus 'Topaze'
  • Ceanothus × pallidus 'Marie Simon'
  • Ceanothus El Dorado = 'Perado' (v)
  • Ceanothus 'Autumnal Blue'
  • Ceanothus 'Blue Mound'
  • Ceanothus 'Burkwoodii'
  • Ceanothus 'Concha'
  • Ceanothus 'Dark Star'
  • Ceanothus 'Italian Skies'
  • Ceanothus 'Puget Blue'
  • Ceanothus 'Skylark'
  • Ceanothus 'Southmead'
  • Cedrus atlantica Glauca Group
  • Cedrus deodara
  • Cedrus deodara 'Feelin' Blue'
  • Cedrus deodara 'Golden Horizon'
  • Cedrus libani
  • Cedrus libani Nana Group
  • Cenolophium denudatum
  • Centaurea atropurpurea
  • Centaurea macrocephala
  • Centaurea montana
  • Centaurea montana 'Alba'
  • Centaurea montana 'Amethyst Dream' (PBR)
  • Centaurea montana 'Amethyst in Snow'
  • Centaurea montana 'Black Sprite'
  • Centaurea nigra
  • Centaurea 'Caramia'
  • Centaurea 'John Coutts'
  • Centranthus ruber
  • Centranthus ruber 'Albus'
  • Centranthus ruber var. coccineus
  • Cephalaria alpina
  • Cephalaria gigantea
  • Cerastium tomentosum
  • Ceratostigma abyssinicum
  • Ceratostigma griffithii
  • Ceratostigma plumbaginoides
  • Ceratostigma willmottianum
  • Ceratostigma willmottianum Forest Blue = 'Lice' (PBR)
  • Ceratostigma willmottianum Sapphire Ring = 'Lissbrill' (PBR)
  • Cercidiphyllum japonicum
  • Cercidiphyllum japonicum 'Boyd's Dwarf'
  • Cercidiphyllum japonicum f. pendulum
  • Cercidiphyllum japonicum 'Rotfuchs'
  • Cercis canadensis Lavender Twist = 'Covey'
  • Cercis canadensis 'Forest Pansy'
  • Cercis canadensis 'Hearts of Gold' (PBR)
  • Cercis canadensis 'Ruby Falls' (PBR)
  • Cercis canadensis var. texensis 'Oklahoma'
  • Cercis canadensis var. texensis 'Texas White'
  • Cercis chinensis 'Avondale'
  • Cercis siliquastrum
  • Cercis siliquastrum f. albida
  • Cerinthe major 'Purpurascens'
  • Cestrum parqui
  • Cestrum × cultum 'Cretan Purple'
  • Cestrum 'Newellii'
  • Chaenomeles speciosa Mango Storm = 'Mincha01' (PBR)
  • Chaenomeles speciosa 'Geisha Girl' (d)
  • Chaenomeles speciosa 'Moerloosei'
  • Chaenomeles speciosa 'Nivalis'
  • Chaenomeles speciosa 'Orange Storm' (PBR)
  • Chaenomeles speciosa 'Pink Storm' (PBR)
  • Chaenomeles × superba 'Crimson and Gold'
  • Chaenomeles × superba 'Jet Trail'
  • Chaenomeles × superba 'Knap Hill Scarlet'
  • Chaenomeles × superba 'Lemon and Lime'
  • Chaenomeles × superba 'Pink Lady'
  • Chaenomeles Madame Butterfly = 'Whitice'
  • Chaenorhinum origanifolium 'Blue Dream'
  • Chaerophyllum azoricum
  • Chaerophyllum creticum
  • Chaerophyllum hirsutum 'Roseum'
  • Chamaecyparis lawsoniana 'Ellwoodii'
  • Chamaecyparis lawsoniana 'Ellwood's Gold'
  • Chamaecyparis lawsoniana 'Filip's Golden Tears'
  • Chamaecyparis lawsoniana 'Pygmaea Argentea' (v)
  • Chamaecyparis lawsoniana 'Stardust'
  • Chamaecyparis obtusa 'Aurora'
  • Chamaecyparis obtusa 'Kosteri'
  • Chamaecyparis obtusa 'Nana Gracilis'
  • Chamaecyparis obtusa 'Nana Lutea'
  • Chamaecyparis obtusa 'Tsatsumi Gold'
  • Chamaecyparis pisifera 'Baby Blue'
  • Chamaecyparis pisifera 'Boulevard'
  • Chamaecyparis pisifera 'Filifera Aurea'
  • Chamaemelum nobile 'Treneague'
  • Chamaenerion angustifolium 'Album'
  • Chamaerops humilis
  • Chasmanthium latifolium
  • Chasmanthium latifolium 'River Mist' (v)
  • Chelone glabra
  • Chelone obliqua
  • Chimonanthus praecox
  • Chimonanthus praecox 'Grandiflorus'
  • Chimonanthus praecox 'Luteus'
  • Chionanthus virginicus
  • Chionochloa rubra
  • 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 Pearl'
  • Choisya Greenfingers = 'Lissfing'
  • Chrysanthemum 'Bronze Elegance' (21b)
  • Chrysanthemum 'Carmine Blush' (21d)
  • Chrysanthemum 'Clara Curtis' (21d)
  • Chrysanthemum 'Corinna' (21d)
  • Chrysanthemum 'Cottage Apricot' (21)
  • Chrysanthemum 'Cousin Joan' (21d)
  • Chrysanthemum 'Daniel Cooper' (21d)
  • Chrysanthemum 'Duchess of Edinburgh' (21d)
  • Chrysanthemum 'Early Yellow'
  • Chrysanthemum 'Fanfare Claret'
  • Chrysanthemum 'Fanfare Flame'
  • Chrysanthemum 'Innocence' (21d)
  • Chrysanthemum 'Mary Stoker' (21d)
  • Chrysanthemum 'Mei-Kyo' (28b)
  • Chrysanthemum 'Mrs Jessie Cooper' (21d)
  • Chrysanthemum 'Perry's Peach' (21d)
  • Cichorium intybus
  • Cichorium intybus 'Roseum'
  • Cirsium rivulare Frosted Magic = 'Lowcir' (PBR)
  • Cirsium rivulare 'Atropurpureum'
  • Cirsium rivulare 'Trevor's Felley Find' (PBR)
  • Cirsium 'Mount Etna'
  • Cistus creticus subsp. creticus
  • Cistus crispus L.
  • Cistus ladanifer L.
  • Cistus ladanifer var. sulcatus
  • Cistus salviifolius 'Prostratus'
  • Cistus × aguilarii 'Maculatus'
  • Cistus × argenteus 'Blushing Peggy Sammons'
  • Cistus × argenteus 'Peggy Sammons'
  • Cistus × argenteus 'Silver Pink' ambig.
  • Cistus × bornetianus 'Jester'
  • Cistus × cyprius
  • Cistus × cyprius var. ellipticus 'Elma'
  • Cistus × dansereaui 'Decumbens'
  • Cistus × dansereaui 'Jenkyn Place'
  • Cistus × lenis 'Grayswood Pink'
  • Cistus × obtusifolius ambig.
  • Cistus × pulverulentus 'Sunset'
  • Cistus × purpureus
  • Cistus × purpureus 'Alan Fradd'
  • Cistus × skanbergii
  • Cistus 'Gordon Cooper'
  • Cistus 'Snow Fire'
  • Citrus hystrix
  • Citrus japonica (F)
  • Citrus trifoliata
  • Citrus × latifolia (F/S)
  • Citrus × limon 'Garey's Eureka' (F)
  • Citrus × limon 'Meyer' (F)
  • Citrus × limon 'Variegata' (F/v)
  • Cladrastis kentukea
  • Clematis alpina 'Pamela Jackman' (A)
  • Clematis armandi
  • Clematis armandi 'Little White Charm' (Ar)
  • Clematis armandi 'Snowdrift' (Ar)
  • Clematis cirrhosa 'Jingle Bells' (C)
  • Clematis cirrhosa var. balearica
  • Clematis cirrhosa var. purpurascens 'Freckles' (C)
  • Clematis cirrhosa 'Wisley Cream' (C)
  • Clematis flammula
  • Clematis florida var. florida 'Sieboldiana' (d)
  • Clematis florida var. normalis Pistachio = 'Evirida' (PBR) (LL)
  • Clematis heracleifolia
  • Clematis heracleifolia 'Cassandra' (H)
  • Clematis integrifolia (I)
  • Clematis koreana Amber = 'Wit141205' (PBR) (A)
  • Clematis macropetala (d)
  • Clematis montana Buch.-Ham. ex DC. var. rubens E.H. Wilson
  • Clematis montana var. grandiflora (M)
  • Clematis montana var. rubens 'Pink Perfection' (M)
  • Clematis montana var. rubens 'Tetrarose' (M)
  • Clematis montana var. wilsonii
  • Clematis napaulensis
  • Clematis recta 'Purpurea' (F)
  • Clematis rehderiana
  • Clematis tangutica
  • Clematis tubulosa 'Wyevale' (H)
  • Clematis urophylla 'Winter Beauty'
  • Clematis viticella 'Flore Pleno' (Vt/d)
  • Clematis 'Étoile Rose' (Vt)
  • Clematis 'Étoile Violette' (Vt)
  • Clematis × aromatica
  • Clematis × cartmanii 'Avalanche' (PBR) (Fo/m)
  • Clematis × cartmanii 'Joe' (Fo/m)
  • Clematis × durandii
  • Clematis × triternata 'Rubromarginata'
  • Clematis Abilene = 'Evipo027' (PBR) (EL)
  • Clematis Acropolis = 'Evipo078' (PBR) (Boulevard Series)
  • Clematis Angelique = 'Evipo017' (EL)
  • Clematis Avant-garde = 'Evipo033' (PBR) (Vt)
  • Clematis Blue Pirouette = 'Zobluepi' (PBR) (I)
  • Clematis Blue River = 'Zoblueriver' (PBR) (I)
  • Clematis Bourbon = 'Evipo018' (PBR) (EL)
  • Clematis Cézanne = 'Evipo023' (PBR) (EL)
  • Clematis Chantilly = 'Evipo021' (PBR) (EL)
  • Clematis Crystal Fountain = 'Evipo038' (PBR) (EL)
  • Clematis Empress = 'Evipo011' (PBR) (EL)
  • Clematis Hyde Hall = 'Evipo009' (PBR) (EL)
  • Clematis I am Happy = 'Zoiamha' (Vt)
  • Clematis I am Lady J = 'Zoiamlj' (Vt)
  • Clematis Ice Blue = 'Evipo003' (PBR) (Prairie Series) (EL)
  • Clematis Kingfisher = 'Evipo037' (PBR) (EL)
  • Clematis Peppermint = 'Evipo005' (PBR) (d)
  • Clematis Rebecca = 'Evipo016' (PBR) (EL)
  • Clematis Sally = 'Evipo077' (PBR) (EL)
  • Clematis Sarah Elizabeth = 'Evipo098'
  • Clematis Star River = 'Zostarri' (PBR) (I)
  • Clematis Super Nova = 'Zo09088' (PBR) (Vt)
  • Clematis Sweetheart = 'Witswe' (PBR) (I)
  • Clematis 'Abundance' (Vt)
  • Clematis 'Alba Luxurians' (Vt)
  • Clematis 'Alionushka' (I)
  • Clematis 'Apple Blossom' (Ar)
  • Clematis 'Arabella' (I)
  • Clematis 'Beauty of Worcester' (EL)
  • Clematis 'Bees' Jubilee' (EL)
  • Clematis 'Betty Corning' (Vt)
  • Clematis 'Bill MacKenzie' (Ta)
  • Clematis 'Black Prince' (Vt)
  • Clematis 'Blue Bird' (A/d)
  • Clematis 'Blue Light' (PBR) (EL/d)
  • Clematis 'Broughton Star' (M/d)
  • Clematis 'Brunette' (A)
  • Clematis 'Côte d'Azur' (H)
  • Clematis 'Carnaby' (EL)
  • Clematis 'Comtesse de Bouchaud' (LL)
  • Clematis 'Daniel Deronda' (EL)
  • Clematis 'Duchess of Albany' (1897) (T)
  • Clematis 'Duchess of Edinburgh' (EL)
  • Clematis 'Early Sensation' (Fo/f)
  • Clematis 'Elsa Späth' (EL)
  • Clematis 'Ernest Markham' (LL)
  • Clematis 'Frances Rivis' (A)
  • Clematis 'Frankie' (A)
  • Clematis 'Freda' (M)
  • Clematis 'General Sikorski' (EL)
  • Clematis 'Gillian Blades' (EL)
  • Clematis 'Gipsy Queen' (LL)
  • Clematis 'Gravetye Beauty' (T)
  • Clematis 'Hågelby Pink' (Vt)
  • Clematis 'Hågelby White' (Vt)
  • Clematis 'H.F. Young' (EL)
  • Clematis 'Hagley Hybrid' (LL)
  • Clematis 'Helsingborg' (A)
  • Clematis 'Henryi' (EL)
  • Clematis 'Huldine' (LL)
  • Clematis 'Jackmanii Alba' (EL)
  • Clematis 'Jackmanii Superba' ambig. (LL)
  • Clematis 'Jacqueline du Pré' (A)
  • Clematis 'Jan Pawel II' (EL)
  • Clematis 'Kermesina' (Vt)
  • Clematis 'Lasurstern' (EL)
  • Clematis 'Little Bas' (Vt)
  • Clematis 'Little Nell' (Vt)
  • Clematis 'Louise Rowe' (EL)
  • Clematis 'Madame Julia Correvon' (Vt)
  • Clematis 'Marie Boisselot' (EL)
  • Clematis 'Marjorie' (M/d)
  • Clematis 'Markham's Pink' (A/d)
  • Clematis 'Miss Bateman' (EL)
  • Clematis 'Miss Christine' (M)
  • Clematis 'Mrs Cholmondeley' (EL)
  • Clematis 'Mrs N. Thompson' (EL)
  • Clematis 'Multi Blue' (EL)
  • Clematis 'My Angel' (PBR) (Ta)
  • Clematis 'Nelly Moser' (EL)
  • Clematis 'Niobe' (EL)
  • Clematis 'Perle d'Azur' (LL)
  • Clematis 'Piilu' (EL)
  • Clematis 'Pink Flamingo' (A)
  • Clematis 'Pixie' (Fo/m)
  • Clematis 'Polish Spirit' (LL)
  • Clematis 'Prince Charles' (LL)
  • Clematis 'Princess Diana' (T)
  • Clematis 'Proteus' (EL)
  • Clematis 'Purpurea Plena Elegans' (Vt/d)
  • Clematis 'Romantika' (LL)
  • Clematis 'Rosy Pagoda' (A)
  • Clematis 'Rouge Cardinal' (LL)
  • Clematis 'Royal Velours' (Vt)
  • Clematis 'Royalty' (EL)
  • Clematis 'Ruby' (A)
  • Clematis 'Star of India' (LL)
  • Clematis 'Taiga' (PBR) (d)
  • Clematis 'The President' (EL)
  • Clematis 'The Vagabond' (EL)
  • Clematis 'Tie Dye' (LL)
  • Clematis 'Venosa Violacea' (Vt)
  • Clematis 'Veronica's Choice' (EL)
  • Clematis 'Ville de Lyon' (LL)
  • Clematis 'Voluceau' (Vt)
  • Clematis 'Vyvyan Pennell' (EL)
  • Clematis 'Warszawska Nike' (EL)
  • Clematis 'Warwickshire Rose' (M)
  • Clematis 'White Columbine' (A)
  • Clematis 'Will Goodwin' (EL)
  • Clematis 'Willy' (A)
  • Clerodendrum bungei
  • Clerodendrum bungei 'Pink Diamond' (v)
  • Clerodendrum trichotomum var. fargesii
  • Clerodendrum trichotomum var. fargesii 'Carnival' (v)
  • Clethra alnifolia 'Hummingbird'
  • Clethra alnifolia 'Ruby Spice'
  • Cobaea scandens f. alba
  • Colchicum autumnale 'Alboplenum'
  • Colchicum autumnale 'Album'
  • Colchicum speciosum
  • Colchicum × byzantinum Ker Gawl.
  • Colchicum 'Lilac Wonder'
  • Colchicum 'Waterlily' (d)
  • Coleonema pulchellum 'Pink Fountain'
  • Coleonema 'Sunset Gold'
  • Colletia paradoxa
  • Colutea arborescens
  • Colutea × media 'Copper Beauty'
  • Commelina dianthifolia 'Electric Blue'
  • Convallaria majalis
  • Convallaria majalis 'Bordeaux'
  • Convallaria majalis var. rosea
  • Convolvulus althaeoides
  • Convolvulus cneorum
  • Convolvulus sabatius
  • Coprosma repens Pacific Sunset = 'Jwncopps' (m/v)
  • Coprosma × kirkii 'Variegata' (f/v)
  • Coprosma 'Beatson's Gold' (f/v)
  • Cordyline australis
  • Cordyline australis Purpurea Group
  • Cordyline australis 'Torbay Dazzler' (v)
  • Cordyline banksii Electric Pink = 'Sprilecpink'
  • Cordyline Pink Passion = 'Seipin' (PBR)
  • Cordyline 'Southern Splendour' (v)
  • Coreopsis auriculata 'Elfin Gold'
  • Coreopsis grandiflora 'Mayfield Giant'
  • Coreopsis grandiflora 'Presto' (d)
  • Coreopsis grandiflora 'Rising Sun'
  • Coreopsis grandiflora 'Sunburst'
  • Coreopsis pubescens 'Sunshine Superman'
  • Coreopsis rosea 'American Dream'
  • Coreopsis tripteris
  • Coreopsis verticillata Crème Brûlée = 'Crembru' (PBR)
  • Coreopsis verticillata 'Bengal Tiger' (PBR)
  • Coreopsis verticillata 'Grandiflora'
  • Coreopsis verticillata 'Moonbeam'
  • Coreopsis verticillata 'Zagreb'
  • Coreopsis 'Center Stage'
  • Coreopsis 'Cosmic Evolution' (Big Bang Series)
  • Coreopsis 'Cosmic Eye' (Big Bang Series)
  • Coreopsis 'Full Moon' (PBR) (Big Bang Series)
  • Coreopsis 'Galaxy' (Big Bang Series)
  • Coreopsis 'Imperial Sun' (PBR)
  • Coreopsis 'Show Stopper' (PBR)
  • Coreopsis 'Sienna Sunset'
  • Coreopsis 'Star Cluster' (Big Bang Series)
  • Cornus alba Baton Rouge = 'Minbat' (PBR)
  • Cornus alba 'Aurea'
  • Cornus alba 'Elegantissima' (v)
  • Cornus alba 'Siberian Pearls'
  • Cornus alba 'Sibirica'
  • Cornus alba 'Spaethii' (v)
  • Cornus alternifolia 'Argentea' (v)
  • Cornus canadensis
  • Cornus controversa 'Variegata' (v)
  • Cornus florida f. rubra
  • Cornus florida 'Sunset' (v)
  • Cornus kousa 'Gold Star' (v)
  • Cornus kousa 'Miss Satomi'
  • Cornus kousa 'Teutonia'
  • Cornus kousa var. chinensis
  • Cornus kousa var. chinensis 'China Girl'
  • Cornus kousa 'Wolf Eyes' (v)
  • Cornus mas
  • Cornus sanguinea 'Anny's Winter Orange'
  • Cornus sanguinea 'Midwinter Fire'
  • Cornus sericea 'Flaviramea'
  • Cornus sericea 'Hedgerows Gold' (v)
  • Cornus × elwinortonii Venus = 'Kn30 8' (PBR) (Jersey Star Series)
  • Cornus 'Eddie's White Wonder'
  • Cornus 'Norman Hadden'
  • Corokia buddlejoides
  • Corokia cotoneaster
  • Corokia × virgata
  • Corokia × virgata 'Bronze King'
  • Corokia × virgata 'Frosted Chocolate'
  • Corokia × virgata 'Pink Delight'
  • Corokia × virgata 'Red Wonder'
  • Corokia × virgata 'Sunsplash' (v)
  • Corokia × virgata 'Yellow Wonder'
  • Coronilla valentina subsp. glauca
  • Coronilla valentina subsp. glauca 'Citrina'
  • Coronilla valentina subsp. glauca 'Variegata' (v)
  • Correa backhouseana
  • Correa 'Dusky Bells'
  • Correa 'Marian's Marvel'
  • Cortaderia araucana
  • Cortaderia selloana 'Aureolineata' (v)
  • Cortaderia selloana 'Evita' (PBR)
  • Cortaderia selloana 'Pumila'
  • Cortaderia selloana 'Silver Fountain' (v)
  • Cortaderia selloana 'Sunningdale Silver'
  • Corydalis flexuosa 'China Blue'
  • Corydalis flexuosa 'Père David'
  • Corydalis flexuosa 'Purple Leaf'
  • Corydalis ophiocarpa
  • Corylus avellana 'Aurea'
  • Corylus avellana 'Contorta'
  • Corylus avellana 'Red Majestic' (PBR)
  • Corylus avellana 'Webb's Prize Cob' (F)
  • Corylus colurna
  • Corylus maxima 'Halle'sche Riesennuss' (F)
  • Corylus maxima 'Kentish Cob' (F)
  • Corylus maxima 'Purpurea' (F)
  • Corylus 'Te Terra Red'
  • Corynabutilon × suntense
  • Corynabutilon × suntense white-flowered
  • Cosmos atrosanguineus
  • Cotinus coggygria
  • Cotinus coggygria Golden Spirit = 'Ancot' (PBR)
  • Cotinus coggygria 'Royal Purple'
  • Cotinus coggygria 'Young Lady' (PBR)
  • Cotinus Dusky Maiden = 'Londus' (PBR)
  • Cotinus 'Flame'
  • Cotinus 'Grace'
  • Cotoneaster atropurpureus 'Variegatus' (v)
  • Cotoneaster beimashanensis
  • Cotoneaster congestus
  • Cotoneaster dammeri
  • Cotoneaster franchetii
  • Cotoneaster horizontalis
  • Cotoneaster huahongdongensis
  • Cotoneaster hylmoei
  • Cotoneaster integrifolius
  • Cotoneaster lacteus
  • Cotoneaster procumbens 'Queen of Carpets'
  • Cotoneaster prostratus 'Arnold-Forster'
  • Cotoneaster rhytidophyllus
  • Cotoneaster salicifolius 'Gnom'
  • Cotoneaster shannanensis
  • Cotoneaster simonsii
  • Cotoneaster splendens
  • Cotoneaster vandelaarii
  • Cotoneaster 'Cornubia'
  • Cotoneaster 'Rothschildianus'
  • Cotoneaster 'Saint Andrews Blaze'
  • Crambe cordifolia
  • Crambe maritima
  • Crassula sarcocaulis
  • Crassula socialis
  • Crataegus laevigata 'Paul's Scarlet' (d)
  • Crataegus laevigata 'Plena' (d)
  • Crataegus laevigata 'Punicea'
  • Crataegus laevigata 'Rosea Flore Pleno' (d)
  • Crataegus monogyna
  • Crataegus orientalis
  • Crataegus persimilis 'Prunifolia'
  • Crataegus wattiana
  • Crataegus × grignonensis
  • Crinodendron hookerianum
  • Crinodendron patagua
  • Crinum × powellii
  • Crinum × powellii 'Album'
  • Crinum 'Ellen Bosanquet'
  • Crocosmia masoniorum
  • Crocosmia × crocosmiiflora (Lemoine) N.E. Br. 'George Davison' Davison
  • Crocosmia × crocosmiiflora 'Babylon'
  • Crocosmia × crocosmiiflora 'Emily McKenzie'
  • Crocosmia × crocosmiiflora 'Golden Glory' ambig.
  • Crocosmia × crocosmiiflora 'Solfatare'
  • Crocosmia × crocosmiiflora 'Star of the East'
  • Crocosmia × crocosmiiflora 'Zeal Tan'
  • Crocosmia Lucifer's Children
  • Crocosmia 'Anna Marie'
  • Crocosmia 'Buttercups'
  • Crocosmia 'Lucifer'
  • Crocosmia 'Spitfire'
  • Crocus sativus
  • Crocus speciosus 'Conqueror'
  • Crocus speciosus 'Oxonian'
  • Crocus tommasinianus
  • Crocus 'Snow Bunting'
  • Cryptomeria japonica 'Cristata'
  • Cryptomeria japonica 'Elegans Aurea'
  • Cryptomeria japonica 'Elegans Compacta'
  • Cryptomeria japonica Elegans Group
  • Cryptomeria japonica 'Sekkan-sugi'
  • Cryptomeria japonica 'Spiralis'
  • Cryptomeria japonica 'Vilmoriniana'
  • Cuphea ignea
  • Cuphea viscosissima
  • Cupressus macrocarpa 'Goldcrest'
  • Cupressus macrocarpa 'Wilma'
  • Cupressus sempervirens 'Totem Pole'
  • Cyclamen coum
  • Cyclamen hederifolium
  • Cydonia oblonga 'Champion' (F)
  • Cydonia oblonga 'Lusitanica' (F)
  • Cydonia oblonga 'Meech's Prolific' (F)
  • Cydonia oblonga 'Serbian Gold' (F)
  • Cydonia oblonga 'Vranja' Nenadovic (F)
  • Cynara cardunculus
  • Cynara cardunculus (Scolymus Group) 'Gros Vert de LÂon'
  • Cytisus nigricans 'Cyni'
  • Cytisus scoparius 'Cornish Cream'
  • Cytisus × beanii
  • Cytisus × boskoopii 'Apricot Gem'
  • Cytisus × boskoopii 'Boskoop Ruby'
  • Cytisus × boskoopii 'Hollandia'
  • Cytisus × boskoopii 'Windlesham Ruby'
  • Cytisus × boskoopii 'Zeelandia'
  • Cytisus × praecox 'Albus'
  • Cytisus × praecox 'Allgold'
  • Cytisus 'Burkwoodii'
  • Cytisus 'Golden Cascade'
  • Cytisus 'Goldfinch'
  • Cytisus 'Lena'
  • Dahlia Dreamy Fantasy (Dreamy Series) (Misc)
  • Dahlia Mystic Spirit = 'Hamspirit' (PBR) (Sin)
  • Dahlia 'Akita' (Misc)
  • Dahlia 'Arabian Night' (D)
  • Dahlia 'Bednall Beauty' (Misc/DwB)
  • Dahlia 'Bishop of Auckland' (PBR) (Misc)
  • Dahlia 'Bishop of Canterbury' (PBR) (P)
  • Dahlia 'Bishop of Dover' (Sin)
  • Dahlia 'Bishop of Leicester' (Misc)
  • Dahlia 'Bishop of Llandaff' (P)
  • Dahlia 'Bishop of York' (Misc)
  • Dahlia 'Blue Boy' (D)
  • Dahlia 'Café au Lait' (D)
  • Dahlia 'Cameo' (WL)
  • Dahlia 'David Howard' (D)
  • Dahlia 'Duet' (D)
  • Dahlia 'Dutch Explosion' (S-c)
  • Dahlia 'Hillcrest Royal' (C)
  • Dahlia 'Jive' (Anem)
  • Dahlia 'Lambada' (Anem)
  • Dahlia 'Moonfire' (Sin)
  • Dahlia 'Myama Fubuki' (Fim)
  • Dahlia 'Mystic Enchantment' (PBR) (Sin)
  • Dahlia 'Mystic Wonder' (Sin)
  • Dahlia 'Natal' (Ba)
  • Dahlia 'Nuit d'Eté' (S-c)
  • Dahlia 'Playa Blanca' (C/DwB)
  • Dahlia 'Roxy' (Sin/DwB)
  • Dahlia 'Stolz von Berlin' (Ba)
  • Dahlia 'Suffolk Punch' (D)
  • Dahlia 'Tomo' (D)
  • Daphne bholua 'Jacqueline Postill'
  • Daphne mezereum var. rubra
  • Daphne odora Rebecca = 'Hewreb' (v)
  • Daphne odora 'Aureomarginata' (v)
  • Daphne × burkwoodii 'Somerset'
  • Daphne × transatlantica Eternal Fragrance = 'Blafra' (PBR)
  • Daphne × transatlantica Pink Fragrance = 'Blapink' (PBR)
  • Daphne Perfume Princess = 'Dapjur01'
  • Daphniphyllum macropodum
  • Darmera peltata
  • Davidia involucrata
  • Davidia involucrata var. vilmoriniana
  • Decaisnea fargesii
  • Delosperma cooperi
  • Delosperma nubigenum
  • Delphinium elatum 'Double Innocence' (New Millennium Series) (d)
  • Delphinium Highlander Bolero = 'Coadelbol' (PBR) (d)
  • Delphinium Astolat Group
  • Delphinium Black Knight Group
  • Delphinium 'Black-eyed Angels' (New Millennium Series)
  • Delphinium Blue Bird Group
  • Delphinium Cameliard Group
  • Delphinium 'Crystal Delight' (Highlander Series) (d)
  • Delphinium Dusky Maidens Group
  • Delphinium Galahad Group
  • Delphinium King Arthur Group
  • Delphinium 'Pink Punch' (New Millennium Series)
  • Delphinium 'Purple Passion' (New Millennium Series)
  • Delphinium 'Royal Aspirations' (New Millennium Series)
  • Delphinium Summer Skies Group
  • Delphinium 'Sunny Skies' (New Millennium Series)
  • Delphinium 'Sweet Sensation' (PBR) (Highlander Series) (d)
  • Deschampsia cespitosa 'Bronzeschleier'
  • Deschampsia cespitosa 'Goldtau'
  • Deschampsia cespitosa 'Northern Lights' (v)
  • Deschampsia flexuosa 'Tatra Gold'
  • Desfontainia spinosa
  • Desmodium elegans
  • Deutzia compacta 'Lavender Time'
  • Deutzia crenata 'Pride of Rochester' (d)
  • Deutzia gracilis
  • Deutzia gracilis 'Nikko'
  • Deutzia monbeigii
  • Deutzia ningpoensis
  • Deutzia pulchra
  • Deutzia setchuenensis var. corymbiflora
  • Deutzia × elegantissima 'Fasciculata'
  • Deutzia × elegantissima 'Rosealind'
  • Deutzia × hybrida 'Magicien' Lemoine
  • Deutzia × hybrida 'Mont Rose'
  • Deutzia × hybrida 'Strawberry Fields'
  • Deutzia × kalmiiflora
  • Deutzia 'Rosea Plena' (d)
  • Dianella tasmanica
  • Dianella tasmanica Destiny = 'Tas100'
  • Dianella tasmanica Tasred = 'Tr20' (PBR)
  • Dianthus carthusianorum
  • Dianthus cruentus
  • Dianthus Coconut Sundae = 'Wp 05 Yves' (PBR) (Scent First Series) (p)
  • Dianthus Fizzy = 'Wp08 Ver03' (PBR) (Early Bird Series) (p)
  • Dianthus Iced Gem = 'Wp06 Fatima' (PBR) (Scent First Series) (p)
  • Dianthus Lady in Red = 'Wp04 Xanthe' (PBR) (p)
  • Dianthus Memories = 'WP11 Gwe04' (PBR) (Scent First Series) (p)
  • Dianthus Mendlesham Minx = 'Russmin' (PBR) (p)
  • Dianthus Mystic Star = 'WP 05 Saphire' (p)
  • Dianthus Passion = 'Wp Passion' (PBR) (Scent First Series) (p)
  • Dianthus Rebekah = 'Wp09 Mar05' (PBR) (Early Bird Series) (p)
  • Dianthus Shooting Star = 'Wp04 Flores' (PBR) (p)
  • Dianthus Sugar Plum = 'Wp08 Ian04' (PBR) (Scent First Series) (p)
  • Dianthus Tickled Pink = 'Devon Pp 11' (PBR) (Scent First Series) (p)
  • Dianthus 'Coral Reef' (PBR) (Scent First Series) (p)
  • Dianthus 'Cranmere Pool' (p)
  • Dianthus 'Devon Arctic Star' (Early Bird Series) (p)
  • Dianthus 'Devon Cream' (p)
  • Dianthus 'Devon Dove' (PBR) (p)
  • Dianthus 'Firestar' (p)
  • Dianthus 'Gran's Favourite' (p)
  • Dianthus 'Laced Monarch' (p)
  • Dianthus 'Letitia Wyatt' (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 'Starry Eyes' (p)
  • Dianthus 'Whatfield Cancan' (p)
  • Dianthus 'Whatfield Gem' (p)
  • Dianthus 'Whatfield Joy' (p)
  • Dianthus 'Whatfield Magenta' (p)
  • Diascia Breezee Snow = 'Inndiabzsno' (PBR) (Breezee Series)
  • Diascia Ice Cracker = 'Hecrack'
  • Diascia Little Dancer = 'Pendan' (PBR)
  • Diascia 'Aurora Cherry Blossom' (Towers of Flowers Series)
  • Diascia 'Aurora Dark Pink' (Towers of Flowers Series)
  • Diascia 'Aurora Light Pink' (Towers of Flowers Series)
  • Diascia 'Lilac Belle'
  • Dicentra formosa
  • Dicentra formosa 'Bacchanal'
  • Dicentra 'Candy Hearts' (PBR)
  • Dicentra 'Ivory Hearts' (PBR)
  • Dicentra 'Luxuriant'
  • Dicksonia antarctica
  • Dictamnus albus
  • Dierama pulcherrimum
  • Dierama pulcherrimum 'Blackbird'
  • Dierama 'Blackberry Bells'
  • Dierama 'Miranda'
  • Digitalis ferruginea
  • Digitalis ferruginea 'Gigantea'
  • Digitalis grandiflora
  • Digitalis grandiflora 'Carillon'
  • Digitalis lanata
  • Digitalis lutea
  • Digitalis parviflora 'Milk Chocolate'
  • Digitalis purpurea
  • Digitalis purpurea 'Camelot Cream' (Camelot Series)
  • Digitalis purpurea 'Camelot Lavender' (Camelot Series)
  • Digitalis purpurea 'Camelot Rose' (Camelot Series)
  • Digitalis purpurea 'Camelot White' (Camelot Series)
  • Digitalis purpurea 'Dalmatian Peach' (Dalmatian Series)
  • Digitalis purpurea 'Dalmatian Purple' (Dalmatian Series)
  • Digitalis purpurea 'Dalmatian Rose' (Dalmatian Series)
  • Digitalis purpurea 'Dalmatian White' (Dalmatian Series)
  • Digitalis purpurea f. albiflora
  • Digitalis purpurea 'Pam's Choice'
  • Digitalis purpurea 'Snow Thimble'
  • Digitalis purpurea 'Sutton's Apricot'
  • Digitalis × mertonensis
  • Digitalis × mertonensis 'Summer King'
  • Disporum bodinieri
  • Disporum cantoniense 'Moonlight' (PBR) (v)
  • Disporum longistylum 'Green Giant'
  • Disporum megalanthum
  • Disporum sessile 'Variegatum' (v)
  • Dodecatheon meadia
  • Dodecatheon meadia f. album
  • Dodecatheon pulchellum subsp. pulchellum 'Red Wings'
  • Doronicum orientale
  • Doronicum 'Little Leo'
  • Dregea sinensis
  • Drimys winteri
  • Drosanthemum hispidum
  • Dryopteris affinis 'Crispa Gracilis'
  • Dryopteris affinis 'Cristata'
  • Dryopteris affinis 'Cristata Angustata'
  • Dryopteris atrata (Wall. ex Kunze) Ching
  • Dryopteris championii
  • Dryopteris crassirhizoma
  • Dryopteris cycadina
  • Dryopteris dilatata
  • Dryopteris dilatata 'Crispa Whiteside'
  • Dryopteris dilatata 'Lepidota Cristata'
  • Dryopteris erythrosora
  • Dryopteris erythrosora var. prolifica
  • Dryopteris filix-mas
  • Dryopteris filix-mas 'Barnesii'
  • Dryopteris filix-mas 'Crispa Cristata'
  • Dryopteris filix-mas 'Cristata'
  • Dryopteris filix-mas 'Linearis'
  • Dryopteris filix-mas 'Linearis Polydactyla'
  • Dryopteris goldieana
  • Dryopteris wallichiana
  • Eccremocarpus scaber
  • Echeveria coccinea
  • Echeveria secunda f. secunda
  • Echeveria 'Black Prince'
  • Echinacea pallida
  • Echinacea paradoxa
  • Echinacea purpurea 'Baby Swan White'
  • Echinacea purpurea 'Doubledecker'
  • Echinacea purpurea 'Fatal Attraction' (PBR)
  • Echinacea purpurea 'Kim's Knee High' (PBR)
  • Echinacea purpurea 'Leuchtstern'
  • Echinacea purpurea 'Lucky Star'
  • Echinacea purpurea 'Magnus'
  • Echinacea purpurea 'Primadonna Deep Rose' (Primadonna Series)
  • Echinacea purpurea 'Rubinstern'
  • Echinacea purpurea 'Ruby Giant'
  • Echinacea purpurea 'Southern Belle' (PBR) (Cone-fections Series) (d)
  • Echinacea purpurea 'Vintage Wine' (PBR)
  • Echinacea purpurea 'White Swan'
  • Echinacea Cheyenne Spirit (mixed)
  • Echinacea 'Green Envy' (PBR)
  • Echinacea 'Hot Papaya' (PBR) (Cone-fections Series) (d)
  • Echinacea 'Summer Cocktail' (PBR)
  • Echinacea 'Sunrise' (PBR) (Big Sky Series)
  • Echinacea 'Sunset' (PBR) (Big Sky Series)
  • Echinacea 'Tomato Soup' (PBR)
  • Echinops bannaticus 'Blue Globe'
  • Echinops bannaticus 'Star Frost'
  • Echinops bannaticus 'Taplow Blue'
  • Echinops ritro L.
  • Echinops ritro subsp. ruthenicus 'Platinum Blue'
  • Echinops sphaerocephalus 'Arctic Glow'
  • Echium candicans
  • Echium pininana
  • Echium pininana 'Snow Tower'
  • Echium russicum
  • Echium vulgare
  • Echium wildpretii
  • Echium 'Pink Fountain'
  • Edgeworthia chrysantha
  • Elaeagnus parvifolia
  • Elaeagnus pungens 'Frederici' (v)
  • Elaeagnus pungens 'Hosoba-fukurin' (v)
  • Elaeagnus pungens 'Maculata' (v)
  • Elaeagnus × submacrophylla
  • Elaeagnus × submacrophylla 'Compacta'
  • Elaeagnus × submacrophylla 'Gilt Edge' (v)
  • Elaeagnus × submacrophylla 'Limelight' (v)
  • Elaeagnus × submacrophylla 'Viveleg' (PBR) (v)
  • Elaeagnus 'Quicksilver'
  • Elsholtzia stauntonii
  • Elymus magellanicus
  • Elymus magellanicus 'Blue Sword'
  • Enkianthus campanulatus
  • Ensete ventricosum 'Maurelii'
  • Epimedium grandiflorum
  • Epimedium grandiflorum 'Lilafee'
  • Epimedium grandiflorum 'Purple Pixie' (PBR)
  • Epimedium grandiflorum 'Rose Queen'
  • Epimedium pinnatum subsp. colchicum
  • Epimedium × perralchicum 'Fröhnleiten'
  • Epimedium × rubrum
  • Epimedium × versicolor 'Sulphureum'
  • Epimedium × warleyense
  • Epimedium creeping yellow
  • Epipactis gigantea
  • Epipactis palustris
  • Equisetum hyemale var. affine
  • Eragrostis curvula 'Totnes Burgundy'
  • Eragrostis spectabilis
  • Eranthis hyemalis
  • Eremurus himalaicus
  • Eremurus robustus
  • Eremurus × isabellinus Ruiter hybrids
  • Eremurus × isabellinus Shelford hybrids
  • Erica arborea 'Estrella Gold'
  • Erica arborea var. alpina f. aureifolia 'Albert's Gold'
  • Erica carnea 'Ann Sparkes'
  • Erica carnea 'Challenger'
  • Erica carnea 'December Red'
  • Erica carnea f. alba 'Ice Princess'
  • Erica carnea f. alba 'Springwood White'
  • Erica carnea f. alba 'Winter Snow'
  • Erica lusitanica f. aureifolia 'George Hunt'
  • Erica × darleyensis 'Darley Dale'
  • Erica × darleyensis 'Jenny Porter'
  • Erica × darleyensis 'Kramer's Rote'
  • Erica × veitchii 'Exeter'
  • Erigeron aurantiacus
  • Erigeron glaucus 'Elstead Pink'
  • Erigeron karvinskianus
  • Erigeron 'Azurfee'
  • Erigeron 'Dignity'
  • Erigeron 'Dunkelste Aller'
  • Erigeron 'Four Winds'
  • Erigeron 'Rosa Juwel'
  • Erigeron 'Schneewittchen'
  • Erigeron 'Wayne Roderick'
  • Eriobotrya japonica (F)
  • Eriolarynx australis
  • Erodium chrysanthum
  • Erodium manescavii
  • Erodium pelargoniiflorum
  • Erodium reichardii 'Bianca'
  • Erodium × kolbianum 'Natasha'
  • Erodium × variabile 'Flore Pleno' (d)
  • Erodium × variabile 'Roseum'
  • Erodium 'Purple Haze'
  • Erodium 'Stephanie'
  • Eryngium agavifolium
  • Eryngium alpinum 'Blue Star'
  • Eryngium bourgatii
  • Eryngium bourgatii Graham Stuart Thomas's selection
  • Eryngium bourgatii 'Picos Blue' (PBR)
  • Eryngium ebracteatum var. poterioides
  • Eryngium eburneum
  • Eryngium giganteum
  • Eryngium pandanifolium
  • Eryngium pandanifolium 'Physic Purple'
  • Eryngium planum
  • Eryngium planum 'Blaukappe'
  • Eryngium planum 'Blue Hobbit'
  • Eryngium planum 'Jade Frost' (PBR) (v)
  • Eryngium planum 'White Glitter'
  • Eryngium variifolium
  • Eryngium × oliverianum
  • Erysimum linifolium 'Variegatum' (v)
  • Erysimum Winter Sorbet = 'Inneryws' (PBR)
  • Erysimum 'Apricot Twist'
  • Erysimum 'Bowles's Mauve'
  • Erysimum 'Constant Cheer'
  • Erysimum 'Red Jep'
  • Erysimum 'Winter Joy'
  • Erythrina crista-galli
  • Erythronium dens-canis
  • Erythronium 'Pagoda'
  • Escallonia bifida
  • Escallonia laevis Pink Elle = 'Lades' (PBR)
  • Escallonia laevis 'Gold Ellen' (v)
  • Escallonia rubra var. macrantha
  • Escallonia Golden Carpet = 'Alcaura' (PBR)
  • Escallonia 'Apple Blossom'
  • Escallonia 'C.F. Ball'
  • Escallonia 'Donard Seedling'
  • Escallonia 'Iveyi'
  • Escallonia 'Peach Blossom'
  • Escallonia 'Red Elf'
  • Escallonia 'Red Hedger'
  • Eucalyptus archeri
  • Eucalyptus gunnii
  • Eucalyptus johnstonii
  • Eucalyptus pauciflora subsp. niphophila
  • Eucalyptus perriniana
  • Eucomis bicolor
  • Eucomis comosa 'Sparkling Burgundy'
  • Eucomis vandermerwei 'Octopus'
  • Eucryphia lucida 'Ballerina'
  • Eucryphia lucida 'Pink Cloud'
  • Eucryphia × intermedia 'Rostrevor'
  • Eucryphia × nymansensis 'Nymans Silver' (v)
  • Eucryphia × nymansensis 'Nymansay'
  • Euonymus alatus
  • Euonymus alatus 'Compactus'
  • Euonymus cornutus var. quinquecornutus
  • Euonymus europaeus
  • Euonymus europaeus 'Red Cascade'
  • Euonymus fortunei Blondy = 'Interbolwi' (v)
  • Euonymus fortunei 'Dart's Blanket'
  • Euonymus fortunei 'Emerald Gaiety' (v)
  • Euonymus fortunei 'Emerald 'n' Gold' (v)
  • Euonymus fortunei 'Harlequin' (v)
  • Euonymus fortunei 'Kewensis'
  • Euonymus fortunei 'Silver Queen' (v)
  • Euonymus fortunei 'Wolong Ghost'
  • Euonymus hamiltonianus
  • Euonymus japonicus 'Chollipo' (v)
  • Euonymus japonicus 'Duc d'Anjou' Carrière (v)
  • Euonymus japonicus 'Golden Maiden' (v)
  • Euonymus japonicus 'Green Rocket'
  • Euonymus japonicus 'Kathy' (PBR)
  • Euonymus japonicus 'Latifolius Albomarginatus' (v)
  • Euonymus japonicus 'Microphyllus Albovariegatus' (v)
  • Euonymus japonicus 'Microphyllus Aureovariegatus' (v)
  • Euonymus japonicus 'Ovatus Aureus' (v)
  • Euonymus japonicus 'Président Gauthier' (v)
  • Euonymus oxyphyllus
  • Euonymus phellomanus
  • Euonymus planipes
  • Eupatorium cannabinum f. cannabinum 'Flore Pleno' (d)
  • Eupatorium dubium 'Baby Joe' (PBR)
  • Eupatorium maculatum Atropurpureum Group
  • Euphorbia amygdaloides 'Purpurea'
  • Euphorbia amygdaloides var. robbiae
  • Euphorbia characias Silver Swan = 'Wilcott' (PBR) (v)
  • Euphorbia characias 'Black Pearl'
  • Euphorbia characias 'Glacier Blue' (PBR) (v)
  • Euphorbia characias 'Portuguese Velvet'
  • Euphorbia characias 'Silver Edge' (v)
  • Euphorbia characias subsp. characias 'Humpty Dumpty'
  • Euphorbia characias subsp. wulfenii
  • Euphorbia cyparissias
  • Euphorbia cyparissias 'Fens Ruby'
  • Euphorbia cyparissias 'Orange Man'
  • Euphorbia epithymoides
  • Euphorbia griffithii 'Dixter'
  • Euphorbia griffithii 'Fireglow'
  • Euphorbia mellifera
  • Euphorbia myrsinites
  • Euphorbia oblongata
  • Euphorbia palustris
  • Euphorbia pithyusa
  • Euphorbia schillingii
  • Euphorbia stygiana
  • Euphorbia × martini
  • Euphorbia × martini 'Ascot Rainbow' (PBR) (v)
  • Euphorbia × martini 'Rudolph' (PBR)
  • Euphorbia × pasteurii 'Roundway Titan'
  • Euphorbia Excalibur = 'Froeup' (PBR)
  • Euphorbia Redwing = 'Charam' (PBR)
  • Euphorbia 'Whistleberry Garnet'
  • Eurybia divaricata
  • Eurybia macrophylla
  • Eurybia × herveyi
  • Euryops acraeus
  • Euryops pectinatus
  • Exochorda giraldii var. wilsonii
  • Exochorda serratifolia
  • Exochorda × macrantha 'The Bride'
  • Fabiana imbricata f. violacea hort.
  • Fagus sylvatica
  • Fagus sylvatica (Atropurpurea Group) 'Purpurea Pendula'
  • Fagus sylvatica (Atropurpurea Group) 'Riversii'
  • Fagus sylvatica Atropurpurea Group
  • Fagus sylvatica 'Black Swan'
  • Fagus sylvatica 'Dawyck'
  • Fagus sylvatica 'Dawyck Gold'
  • Fagus sylvatica 'Dawyck Purple'
  • Fagus sylvatica 'Pendula'
  • Fagus sylvatica 'Purple Fountain'
  • Fallopia baldschuanica
  • Fargesia murielae
  • Fargesia nitida
  • Fargesia nitida 'Great Wall'
  • Fargesia robusta
  • Fargesia rufa
  • Fascicularia bicolor
  • Fatsia japonica
  • Fatsia japonica 'Tsumugi-shibori' (v)
  • Fatsia japonica 'Variegata' (v)
  • Fatsia polycarpa Green Fingers
  • Ferula communis
  • Festuca glauca Intense Blue = 'Casblue' (PBR)
  • Festuca glauca 'Blaufuchs'
  • Festuca glauca 'Elijah Blue'
  • Festuca glauca 'Golden Toupee'
  • Ficaria verna 'Brazen Hussy'
  • Ficaria verna 'Collarette' (d)
  • Ficaria verna Flore Pleno Group (d)
  • Ficinia truncata 'Ice Crystal' (v)
  • Ficus carica 'Brown Turkey' (F)
  • Ficus carica 'Brunswick' (F)
  • Ficus carica 'Dalmatie' (F)
  • Ficus carica 'Ice Crystal' (F)
  • Filipendula camtschatica
  • Filipendula rubra 'Venusta'
  • Filipendula ulmaria 'Aurea'
  • Filipendula ulmaria 'Variegata' (v)
  • Filipendula vulgaris 'Multiplex' (d)
  • Foeniculum vulgare
  • Foeniculum vulgare 'Purpureum'
  • Forsythia × intermedia Minigold = 'Flojor'
  • Forsythia × intermedia Week End = 'Courtalyn'
  • Forsythia × intermedia 'Lynwood Variety'
  • Forsythia 'Golden Nugget'
  • Fothergilla gardenii 'Blue Mist'
  • Fothergilla major
  • Fragaria vesca (F)
  • Fragaria × ananassa Pink Panda = 'Frel' (F)
  • Fragaria × ananassa 'Samba' (PBR) (F)
  • Fragaria × ananassa 'Sonata' (PBR) (F)
  • Francoa sonchifolia
  • Frangula alnus 'Ron Williams'
  • Fremontodendron californicum
  • Fritillaria imperialis 'Maxima Lutea'
  • Fritillaria imperialis 'Rubra Maxima'
  • Fritillaria meleagris
  • Fritillaria persica 'Green Dreams'
  • Fuchsia magellanica var. gracilis 'Aurea'
  • Fuchsia magellanica var. gracilis 'Versicolor' (v)
  • Fuchsia magellanica var. molinae
  • Fuchsia magellanica var. molinae 'Sharpitor' (v)
  • Fuchsia 'Alice Hoffman' (d)
  • Fuchsia 'Army Nurse' (d)
  • Fuchsia 'Baby Blue Eyes'
  • Fuchsia 'Chillerton Beauty'
  • Fuchsia 'David'
  • Fuchsia 'Flash'
  • Fuchsia 'Genii'
  • Fuchsia 'Hawkshead'
  • Fuchsia 'Lady Boothby'
  • Fuchsia 'Lady in Black' (d)
  • Fuchsia 'Lottie Hobby' (E)
  • Fuchsia 'Madame Cornélissen' (d)
  • Fuchsia 'Mrs Popple'
  • Fuchsia 'Riccartonii'
  • Fuchsia 'Tom Thumb'
  • Fuchsia 'Walz Jubelteen'
  • Gaillardia × grandiflora 'Amber Wheels'
  • Gaillardia × grandiflora 'Burgunder'
  • Gaillardia × grandiflora 'Dazzler'
  • Gaillardia × grandiflora 'Kobold'
  • Gaillardia × grandiflora 'Tokajer'
  • Galanthus elwesii
  • Galanthus nivalis
  • Galanthus nivalis f. pleniflorus 'Flore Pleno' (d)
  • Galega officinalis
  • Galega officinalis 'Alba'
  • Galium odoratum
  • Galtonia candicans
  • Gardenia jasminoides 'Kleim's Hardy'
  • Garrya elliptica 'James Roof' (m)
  • Garrya × issaquahensis 'Glasnevin Wine' (m)
  • Gaultheria mucronata 'Bell's Seedling' (f/m)
  • Gaultheria mucronata 'Mulberry Wine' (f)
  • Gaultheria mucronata 'Signaal' (f)
  • Gaultheria mucronata 'Sneeuwwitje' (f)
  • Gaultheria mucronata 'Thymifolia' (m)
  • Gaultheria procumbens
  • Gazania Tiger Eye = 'Gazte' (v)
  • Gazania Totonaca = 'Suga212' (Sunbathers Series)
  • Gazania 'Katua' (Sunbathers Series)
  • Gazania 'Magic'
  • Genista hispanica
  • Genista lydia
  • Genista pilosa 'Vancouver Gold'
  • Gentiana asclepiadea
  • Gentiana cruciata
  • Geranium clarkei 'Kashmir White'
  • Geranium dalmaticum
  • Geranium himalayense
  • Geranium himalayense 'Gravetye'
  • Geranium himalayense 'Plenum' (d)
  • Geranium macrorrhizum 'Bevan's Variety'
  • Geranium macrorrhizum 'Czakor'
  • Geranium macrorrhizum 'Ingwersen's Variety'
  • Geranium macrorrhizum 'Spessart'
  • Geranium macrorrhizum 'Variegatum' (v)
  • Geranium macrorrhizum 'White-Ness'
  • Geranium maculatum 'Beth Chatto'
  • Geranium maculatum 'Espresso'
  • Geranium maculatum f. albiflorum
  • Geranium maderense
  • Geranium nodosum
  • Geranium nodosum 'Silverwood'
  • 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 phaeum 'Variegatum' (v)
  • Geranium pratense (Victor Reiter Group) 'Midnight Reiter'
  • Geranium pratense 'Algera Double'
  • Geranium pratense 'Black 'n' White'
  • Geranium pratense 'Hocus Pocus'
  • Geranium pratense 'Mrs Kendall Clark'
  • Geranium pratense 'Plenum Violaceum' (d)
  • Geranium pratense 'Striatum'
  • Geranium pratense var. pratense f. albiflorum 'Plenum Album' (d)
  • Geranium psilostemon
  • Geranium pyrenaicum 'Bill Wallis'
  • Geranium sanguineum 'Album'
  • Geranium sanguineum 'Elsbeth'
  • Geranium sanguineum 'Max Frei'
  • Geranium sanguineum var. striatum
  • Geranium subcaulescens
  • Geranium sylvaticum 'Album'
  • Geranium sylvaticum 'Amy Doncaster'
  • Geranium sylvaticum 'Mayflower'
  • Geranium wallichianum 'Buxton's Variety'
  • Geranium wallichianum 'Rise and Shine' (PBR)
  • Geranium × cantabrigiense 'Biokovo'
  • Geranium × cantabrigiense 'Cambridge'
  • Geranium × johnsonii 'Johnson's Blue'
  • Geranium × magnificum
  • Geranium × magnificum 'Rosemoor'
  • Geranium × oxonianum 'A.T. Johnson'
  • Geranium × oxonianum 'Claridge Druce'
  • Geranium × oxonianum f. thurstonianum 'Southcombe Double' (d)
  • Geranium × oxonianum 'Rebecca Moss'
  • Geranium × oxonianum 'Rose Clair'
  • Geranium × oxonianum 'Wargrave Pink'
  • Geranium × riversleaianum 'Russell Prichard'
  • Geranium (Cinereum Group) 'Ballerina'
  • Geranium (Cinereum Group) 'Purple Pillow'
  • Geranium Blue Sunrise = 'Blogold' (PBR)
  • Geranium Dragon Heart = 'Bremdra' (PBR)
  • Geranium Patricia = 'Brempat'
  • Geranium Rozanne = 'Gerwat' (PBR)
  • Geranium Summer Skies = 'Gernic' (PBR) (d)
  • Geranium 'Ann Folkard'
  • Geranium 'Blushing Turtle' (PBR)
  • Geranium 'Brookside'
  • Geranium 'Dilys'
  • Geranium 'Dusky Crûg'
  • Geranium 'Elke'
  • Geranium 'Kashmir Blue'
  • Geranium 'Kashmir Pink'
  • Geranium 'Mavis Simpson'
  • Geranium 'Nimbus'
  • Geranium 'Sue Crûg'
  • Geranium 'Tanya Rendall' (PBR)
  • Geum rivale
  • Geum rivale 'Album'
  • Geum rivale 'Leonard's Variety'
  • Geum 'Alabama Slammer' (Cocktails Series)
  • Geum 'Banana Daiquiri' (Cocktails Series)
  • Geum 'Blazing Sunset' (d)
  • Geum 'Borisii'
  • Geum 'Coppertone'
  • Geum 'Cosmopolitan' (Cocktails Series)
  • Geum 'Flames of Passion' (PBR)
  • Geum 'Lady Stratheden' (d)
  • Geum 'Lionel Cox'
  • Geum 'Mrs J. Bradshaw' (d)
  • Geum 'Prinses Juliana'
  • Geum 'Tequila Sunrise' (Cocktails Series)
  • Geum 'Totally Tangerine' (PBR)
  • Gillenia trifoliata
  • Ginkgo biloba
  • Ginkgo biloba 'Autumn Gold' (m)
  • Ginkgo biloba 'Mariken'
  • Ginkgo biloba 'Menhir' (PBR)
  • Ginkgo biloba 'Princeton Sentry' (m)
  • Gladiolus communis subsp. byzantinus
  • Gladiolus papilio
  • Glandora prostrata 'Grace Ward'
  • Glandora prostrata 'Heavenly Blue'
  • Glandora prostrata 'Star' (PBR)
  • Glandularia 'Claret'
  • Glandularia 'Homestead Purple'
  • Gleditsia triacanthos f. inermis 'Sunburst'
  • Gleditsia triacanthos 'Rubylace'
  • Glyceria maxima var. variegata (v)
  • Glycyrrhiza uralensis
  • Gomphostigma virgatum
  • Grevillea rosmarinifolia
  • Grevillea rosmarinifolia 'Jenkinsii'
  • Grevillea 'Canberra Gem'
  • Griselinia littoralis
  • Griselinia littoralis Green Horizon = 'Whenuapai' (PBR)
  • Griselinia littoralis 'Bantry Bay' (v)
  • Griselinia littoralis 'Dixon's Cream' (v)
  • Griselinia littoralis 'Variegata' (v)
  • Gunnera magellanica
  • Gunnera manicata
  • Gymnocladus dioica
  • Gypsophila paniculata 'Bristol Fairy' (d)
  • Gypsophila repens 'Rosea'
  • Gypsophila repens 'Silver Carpet' (v)
  • Gypsophila 'Rosenschleier' (d)
  • Gypsophila 'Rosenschleier Variegata' (v)
  • Haberlea rhodopensis
  • Haemanthus albiflos
  • Hakonechloa macra
  • Hakonechloa macra 'Alboaurea' (v)
  • Hakonechloa macra 'All Gold'
  • Hakonechloa macra 'Aureola'
  • Hakonechloa macra 'Beni-kaze'
  • Hakonechloa macra 'Naomi' (v)
  • Hakonechloa macra 'Nicolas'
  • Halesia carolina
  • Halesia carolina Monticola Group
  • Halimium calycinum
  • Halimium lasianthum subsp. formosum 'Sandling'
  • Halimium 'Susan'
  • Haloragis erecta 'Wellington Bronze'
  • Hamamelis mollis
  • Hamamelis mollis 'Wisley Supreme'
  • Hamamelis × intermedia 'Arnold Promise'
  • Hamamelis × intermedia 'Diane'
  • Hamamelis × intermedia 'Jelena'
  • Hamamelis × intermedia 'Pallida'
  • Hamamelis × intermedia 'Robert'
  • Hamamelis 'Yamina'
  • Hardenbergia violacea
  • Hardenbergia violacea f. alba
  • Hebe albicans
  • Hebe cupressoides 'Boughton Dome'
  • Hebe ochracea 'James Stirling'
  • Hebe odora
  • Hebe pimeleoides 'Quicksilver'
  • Hebe pinguifolia 'Pagei'
  • Hebe rakaiensis
  • Hebe salicifolia
  • Hebe × franciscana 'Blue Gem' ambig.
  • Hebe Blue Elegance = 'Lowgeko' (PBR) (Garden Elegance Series)
  • Hebe Blush Elegance = 'Lowele' (Garden Elegance Series)
  • Hebe Leopard = 'Lowand' (Garden Beauty Series)
  • Hebe 'Autumn Glory'
  • Hebe 'Baby Marie'
  • Hebe 'Caledonia'
  • Hebe 'Champagne'
  • Hebe 'Emerald Gem'
  • Hebe 'Frozen Flame' (v)
  • Hebe 'Great Orme'
  • Hebe 'Heartbreaker' (PBR) (v)
  • Hebe 'Joan Mac'
  • Hebe 'Kirkii'
  • Hebe 'Marjorie'
  • Hebe 'Mrs Winder'
  • Hebe 'Pascal'
  • Hebe 'Pink Lady' (PBR)
  • Hebe 'Pink Paradise' (PBR)
  • Hebe 'Red Edge'
  • Hebe 'Silver Queen' (v)
  • Hebe 'Wiri Dawn'
  • Hebe 'Wiri Mist'
  • Hebe 'Youngii'
  • Hedera algeriensis 'Gloire de Marengo' (v)
  • Hedera colchica 'Dentata Variegata' (v)
  • Hedera colchica 'Sulphur Heart' (v)
  • Hedera helix 'Buttercup'
  • Hedera helix 'Conglomerata'
  • Hedera helix 'Dyinnii'
  • Hedera helix 'Erecta'
  • Hedera helix 'Glacier' (v)
  • Hedera helix 'Golden Starlight' (v)
  • Hedera helix 'Green Ripple'
  • Hedera helix 'Little Diamond' (v)
  • Hedera helix 'Manda's Crested'
  • Hedera helix 'Midas Touch' (v)
  • Hedera helix 'Parsley Crested'
  • Hedychium aurantiacum
  • Hedychium coronarium
  • Hedychium flavescens
  • Hedysarum coronarium
  • Helenium autumnale 'Salsa' (PBR) (Mariachi Series)
  • Helenium autumnale 'Short and Sassy' (PBR)
  • Helenium Mardi Gras = 'Helbro'
  • Helenium 'Chelsey'
  • Helenium 'Kupferzwerg'
  • Helenium 'Moerheim Beauty'
  • Helenium 'Pumilum Magnificum'
  • Helenium 'Rubinzwerg'
  • Helenium 'Ruby Thuesday'
  • Helenium 'Sahin's Early Flowerer'
  • Helenium 'Waltraut'
  • Helenium 'Wyndley'
  • Helianthemum 'Ben Fhada'
  • Helianthemum 'Ben Hope'
  • Helianthemum 'Ben Ledi'
  • Helianthemum 'Ben More'
  • Helianthemum 'Fairy'
  • Helianthemum 'Fire Dragon'
  • Helianthemum 'Henfield Brilliant'
  • Helianthemum 'Mrs C.W. Earle' (d)
  • Helianthemum 'Prima Donna'
  • Helianthemum 'Raspberry Ripple'
  • Helianthemum 'Rhodanthe Carneum'
  • Helianthemum 'Supreme'
  • Helianthemum 'The Bride'
  • Helianthemum 'Wisley Primrose'
  • Helianthemum 'Wisley White'
  • Helianthus maximiliani
  • Helianthus salicifolius
  • Helianthus 'Lemon Queen'
  • Helianthus 'Loddon Gold'
  • Helichrysum italicum 'Korma' (PBR)
  • Helichrysum 'Icicles'
  • Helictotrichon sempervirens
  • Heliopsis helianthoides var. scabra 'Sommersonne'
  • Heliopsis helianthoides var. scabra 'Summer Nights'
  • Helleborus argutifolius
  • Helleborus argutifolius 'Silver Lace'
  • Helleborus foetidus
  • Helleborus niger
  • Helleborus niger HGC Goldmarie = 'Coseh 2020' (PBR)
  • Helleborus niger HGC Jasper = 'Coseh 1010' (PBR)
  • Helleborus niger HGC Jesko = 'Coseh 1000' (PBR)
  • Helleborus niger 'HGC Jacob' (PBR)
  • Helleborus × hybridus
  • Helleborus × hybridus Ashwood Garden hybrids
  • Helleborus × hybridus 'Smokey Blue'
  • Helleborus × hybridus spotted, primrose
  • Helleborus × sternii
  • Helleborus × sternii 'Boughton Beauty'
  • Helleborus HGC Madame Lemonnier = 'Lem 100' (PBR)
  • Hemerocallis fulva 'Flore Pleno' (d)
  • Hemerocallis lilioasphodelus
  • Hemerocallis Golden Zebra = 'Malja' (PBR) (v)
  • Hemerocallis 'African Chant'
  • Hemerocallis 'Bridget'
  • Hemerocallis 'Brocaded Gown'
  • Hemerocallis 'Carolina Cranberry'
  • Hemerocallis 'Catherine Woodbery'
  • Hemerocallis 'Cherry Cheeks'
  • Hemerocallis 'Chicago Knockout'
  • Hemerocallis 'Corky'
  • Hemerocallis 'Dot Paul'
  • Hemerocallis 'George Cunningham'
  • Hemerocallis 'Giant Moon'
  • Hemerocallis 'Golden Chimes'
  • Hemerocallis 'Grumbly'
  • Hemerocallis 'Happy Returns'
  • Hemerocallis 'Her Majesty's Wizard'
  • Hemerocallis 'Holiday Mood'
  • Hemerocallis 'Hot Town'
  • Hemerocallis 'Joan Senior'
  • Hemerocallis 'Look at Me'
  • Hemerocallis 'Lullaby Baby'
  • Hemerocallis 'Luxury Lace'
  • Hemerocallis 'Marion Vaughn'
  • Hemerocallis 'Morocco Red'
  • Hemerocallis 'Nashville'
  • Hemerocallis 'Pandora's Box'
  • Hemerocallis 'Pardon Me'
  • Hemerocallis 'Pink Damask'
  • Hemerocallis 'Rocket City'
  • Hemerocallis 'Serene Madonna'
  • Hemerocallis 'Siloam June Bug'
  • Hemerocallis 'Stafford'
  • Hemerocallis 'Stella de Oro'
  • Hemerocallis 'Vintage Bordeaux'
  • Hemerocallis 'Whichford'
  • Hepatica transsilvanica 'Blue Jewel'
  • Heptacodium miconioides
  • Hesperaloe parviflora
  • Hesperantha coccinea f. alba
  • Hesperantha coccinea 'Fenland Daybreak'
  • Hesperantha coccinea 'Major'
  • Hesperantha coccinea 'Sunrise'
  • Hesperantha coccinea 'Wilfred H. Bryant'
  • Hesperis matronalis
  • Hesperis matronalis var. albiflora
  • Heuchera cylindrica 'Greenfinch'
  • Heuchera sanguinea 'Snow Storm' (v)
  • Heuchera villosa 'Palace Purple'
  • Heuchera Carnival Limeade = 'Balcarmade' (PBR) (Carnival Series)
  • Heuchera Crème Brûlée = 'Tnheu041' (Dolce Series)
  • Heuchera Sugar Frosting = 'Pwheu0104' (PBR)
  • Heuchera 'Autumn Leaves' (PBR)
  • Heuchera 'Beauty Colour'
  • Heuchera 'Berry Smoothie' (PBR)
  • Heuchera 'Binoche' (PBR)
  • Heuchera 'Blackberry Jam'
  • Heuchera 'Boysenberry' (PBR) (Indian Summer Series)
  • Heuchera 'Cajun Fire' (PBR)
  • Heuchera 'Can-can'
  • Heuchera 'Cappuccino'
  • Heuchera 'Caramel' (PBR)
  • Heuchera 'Cherry Cola' (PBR)
  • Heuchera 'Chocolate Ruffles' (PBR)
  • Heuchera 'Coralberry' (PBR) (Indian Summer Series)
  • Heuchera 'Cranberry' (Indian Summer Series)
  • Heuchera 'Crimson Curls'
  • Heuchera 'Electric Lime'
  • Heuchera 'Fire Alarm' (PBR)
  • Heuchera 'Fire Chief' (PBR)
  • Heuchera 'Georgia Peach' (PBR)
  • Heuchera 'Georgia Plum'
  • Heuchera 'Ginger Ale' (PBR)
  • Heuchera 'Green Spice'
  • Heuchera 'Lime Marmalade'
  • Heuchera 'Marmalade' (PBR)
  • Heuchera 'Midnight Bayou'
  • Heuchera 'Midnight Rose'
  • Heuchera 'Milan' (PBR)
  • Heuchera 'Mint Frost' (PBR)
  • Heuchera 'Obsidian' (PBR)
  • Heuchera 'Peach Flambé' (PBR)
  • Heuchera 'Plum Pudding' (PBR)
  • Heuchera 'Plum Royale' (PBR)
  • Heuchera 'Prince'
  • Heuchera 'Purple Petticoats'
  • Heuchera 'Rave On' (PBR)
  • Heuchera 'Sparkling Burgundy'
  • Heuchera 'Stormy Seas'
  • Heuchera 'Strawberry Swirl'
  • Heuchera 'Sugar Plum' (PBR)
  • Hibiscus moscheutos 'Old Yella' (PBR)
  • Hibiscus moscheutos 'Royal Gems' (PBR)
  • Hibiscus syriacus Blue Chiffon = 'Notwood3' (PBR) (Chiffon Series) (d)
  • Hibiscus syriacus Lavender Chiffon = 'Notwoodone' (PBR) (Chiffon Series) (d)
  • Hibiscus syriacus Pink Chiffon = 'Jwnwood4' (PBR) (Chiffon Series) (d)
  • Hibiscus syriacus White Chiffon = 'Notwoodtwo' (PBR) (Chiffon Series) (d)
  • Hibiscus syriacus 'Diana'
  • Hibiscus syriacus 'Hamabo'
  • Hibiscus syriacus 'Marina'
  • Hibiscus syriacus 'Oiseau Bleu'
  • Hibiscus syriacus 'Red Heart'
  • Hibiscus syriacus 'Woodbridge'
  • Hibiscus trionum 'Sunny Day'
  • Hibiscus 'Cranberry Crush' (PBR)
  • Hibiscus 'Jazzberry Jam' (PBR)
  • Hippocrepis emerus
  • Hippophae rhamnoides
  • Hippophae rhamnoides 'Leikora' (f/F)
  • Hippophae rhamnoides 'Pollmix' (m)
  • Hoheria sexstylosa 'Stardust'
  • Hoheria 'Ace of Spades'
  • Hoheria 'Borde Hill'
  • Hoheria 'Glory of Amlwch'
  • Holboellia latifolia
  • Holodiscus discolor
  • Hormathophylla spinosa 'Roseum'
  • Hosta fortunei var. albopicta (v)
  • Hosta fortunei var. aureomarginata (v)
  • Hosta sieboldiana var. elegans
  • Hosta (Tardiana Group) 'Hadspen Blue'
  • Hosta (Tardiana Group) 'Halcyon'
  • Hosta 'August Moon'
  • Hosta 'Aureomarginata' (montana) (v)
  • Hosta 'Big Daddy' (sieboldiana hybrid) (v)
  • Hosta 'Blue Angel' (sieboldiana)
  • Hosta 'Blue Mouse Ears'
  • Hosta 'Blue Umbrellas' (sieboldiana hybrid)
  • Hosta 'Celebration' (v)
  • Hosta 'Devon Green'
  • Hosta 'Empress Wu' (PBR)
  • Hosta 'Fantabulous' (v)
  • Hosta 'Fire and Ice' (v)
  • Hosta 'Fire Island'
  • Hosta 'First Frost' (v)
  • Hosta 'Fragrant Blue'
  • Hosta 'Fragrant Bouquet' (v)
  • Hosta 'Francee' (fortunei) (v)
  • Hosta 'Frances Williams' (sieboldiana) (v)
  • Hosta 'Ginko Craig' (v)
  • Hosta 'Golden Prayers' (tokudama)
  • Hosta 'Golden Tiara' (v)
  • Hosta 'Great Expectations' (sieboldiana) (v)
  • Hosta 'Ground Master' (v)
  • Hosta 'Honeybells'
  • Hosta 'Krossa Regal'
  • Hosta 'Orange Marmalade' (v)
  • Hosta 'Patriot' (v)
  • Hosta 'Powder Blue' (v)
  • Hosta 'Praying Hands' (v)
  • Hosta 'Regal Splendor' (v)
  • Hosta 'Remember Me' (PBR)
  • Hosta 'Royal Standard'
  • Hosta 'Shade Fanfare' (v)
  • Hosta 'So Sweet' (v)
  • Hosta 'Sum and Substance'
  • Hosta 'Whirlwind' (fortunei) (v)
  • Hosta 'Wide Brim' (v)
  • Houttuynia cordata 'Chameleon' (v)
  • Houttuynia cordata 'Joker's Gold'
  • Humulus lupulus 'Aureus'
  • Humulus lupulus 'Golden Tassels' (f)
  • Humulus lupulus 'Prima Donna'
  • Hyacinthoides non-scripta
  • Hydrangea anomala subsp. anomala 'Winter Glow'
  • Hydrangea anomala subsp. petiolaris
  • Hydrangea anomala subsp. petiolaris 'Mirranda' (v)
  • Hydrangea arborescens Pink Annabelle = 'Ncha1' (PBR)
  • Hydrangea arborescens Strong Annabelle = 'Abetwo' (PBR)
  • Hydrangea arborescens 'Annabelle'
  • Hydrangea arborescens 'Hayes Starburst' (PBR)
  • Hydrangea aspera Hot Chocolate = 'Haopr012' (PBR)
  • Hydrangea aspera 'Macrophylla'
  • Hydrangea aspera Villosa Group
  • Hydrangea macrophylla Endless Summer = 'Bailmer' (H)
  • Hydrangea macrophylla 'All Summer Beauty' (H)
  • Hydrangea macrophylla 'Ami Pasquier' (H)
  • Hydrangea macrophylla 'Dark Angel' (Black Diamonds Series) (L)
  • Hydrangea macrophylla 'Générale Vicomtesse de Vibraye' (H)
  • Hydrangea macrophylla 'Izu-no-hana' (L/d)
  • Hydrangea macrophylla 'Lanarth White' (L)
  • Hydrangea macrophylla 'Libelle' (Teller Series) (L)
  • Hydrangea macrophylla 'Madame Emile Mouillère' (H)
  • Hydrangea macrophylla 'Mariesii' (L)
  • Hydrangea macrophylla 'Mariesii Perfecta' (L)
  • Hydrangea macrophylla 'Nigra' (H)
  • Hydrangea macrophylla 'Sweet Fantasy' (Hovaria Series) (H)
  • Hydrangea macrophylla 'Taube' (Teller Series) (L)
  • Hydrangea macrophylla 'Zebra' (PBR) (Black Steel Series) (H)
  • Hydrangea macrophylla 'Zorro' (PBR) (L)
  • Hydrangea paniculata Diamant Rouge = 'Rendia' (PBR)
  • Hydrangea paniculata Magical Candle = 'Bokraflame' (PBR) (Magical Series)
  • Hydrangea paniculata Magical Flame = 'Bokratorch' (PBR) (Magical Series)
  • Hydrangea paniculata Pink Diamond = 'Interhydia'
  • Hydrangea paniculata Vanille Fraise = 'Renhy' (PBR)
  • Hydrangea paniculata 'Floribunda'
  • Hydrangea paniculata 'Grandiflora'
  • Hydrangea paniculata 'Kyushu'
  • Hydrangea paniculata 'Limelight' (PBR)
  • Hydrangea paniculata 'Phantom'
  • Hydrangea paniculata 'Unique'
  • Hydrangea paniculata 'Wim's Red' (PBR)
  • Hydrangea quercifolia
  • Hydrangea quercifolia Ice Crystal = 'Hqopr010' (PBR)
  • Hydrangea quercifolia Snow Queen = 'Flemygea'
  • Hydrangea quercifolia Snowflake = 'Brido' (d)
  • Hydrangea quercifolia 'Alice'
  • Hydrangea quercifolia 'Applause'
  • Hydrangea quercifolia 'Harmony'
  • Hydrangea quercifolia 'Pee Wee'
  • Hydrangea quercifolia 'Sike's Dwarf'
  • Hydrangea seemannii
  • Hydrangea serrata 'Bluebird' (L)
  • Hydrangea serrata 'Grayswood' (L)
  • Hydrangea 'Preziosa'
  • Hylomecon japonica
  • Hylotelephium erythrostictum 'Frosty Morn' (v)
  • Hylotelephium erythrostictum 'Mediovariegatum' (v)
  • Hylotelephium spectabile
  • Hylotelephium spectabile (Brilliant Group) 'Brilliant'
  • Hylotelephium spectabile (Brilliant Group) 'Hot Stuff'
  • Hylotelephium telephium (Atropurpureum Group) 'Purple Emperor'
  • Hylotelephium telephium Emperor's Waves Group
  • Hylotelephium telephium 'Strawberries and Cream'
  • Hylotelephium telephium subsp. maximum 'Gooseberry Fool'
  • Hylotelephium (Herbstfreude Group) 'Herbstfreude'
  • Hylotelephium 'Abbey Dore'
  • Hylotelephium 'Bertram Anderson'
  • Hylotelephium 'Carl'
  • Hylotelephium 'Joyce Henderson'
  • Hylotelephium 'Matrona'
  • Hylotelephium 'Red Cauli'
  • Hylotelephium 'Ruby Glow'
  • Hylotelephium 'Stewed Rhubarb Mountain'
  • Hylotelephium 'Vera Jameson'
  • Hypericum androsaemum
  • Hypericum androsaemum 'Albury Purple'
  • Hypericum balearicum
  • Hypericum calycinum
  • Hypericum olympicum
  • Hypericum × hidcoteense 'Hidcote'
  • Hypericum × inodorum Magical Cherry = 'Kolmcherrip' (PBR)
  • Hypericum × inodorum Magical White = 'Kolmawhi' (PBR) (Magical Series)
  • Hypericum × moserianum 'Tricolor' (v)
  • Hyssopus officinalis
  • Hyssopus officinalis f. albus
  • Hyssopus officinalis 'Roseus'
  • Iberis sempervirens
  • Iberis sempervirens 'Weisser Zwerg'
  • Iberis Absolutely Amethyst = 'Ib2401'
  • Iberis 'Masterpiece' (PBR)
  • Iberis 'Pink Ice'
  • Ilex aquifolium 'Argentea Marginata' (f/v)
  • Ilex aquifolium 'Argentea Marginata Pendula' (f/v)
  • Ilex aquifolium 'Bacciflava' (f)
  • Ilex aquifolium 'Ferox' (m)
  • Ilex aquifolium 'Ferox Argentea' (m/v)
  • Ilex aquifolium 'Golden van Tol' (f/v)
  • Ilex aquifolium 'Handsworth New Silver' (f/v)
  • Ilex aquifolium 'J.C. van Tol' (f)
  • Ilex aquifolium 'Madame Briot' (f/v)
  • Ilex aquifolium 'Myrtifolia' (m)
  • Ilex aquifolium 'Myrtifolia Aurea Maculata' (m/v)
  • Ilex aquifolium 'Pyramidalis' (f)
  • Ilex aquifolium 'Silver van Tol' (f/v)
  • Ilex crenata Dark Green = 'Icoprins11' (PBR)
  • Ilex crenata 'Golden Gem' (f/v)
  • Ilex crenata 'Shiro-fukurin' (f/v)
  • Ilex × altaclerensis 'Golden King' (f/v)
  • Ilex × koehneana 'Chestnut Leaf' (f)
  • Ilex × meserveae Blue Angel = 'Conang' (f)
  • Ilex × meserveae Blue Prince = 'Conablu' (m)
  • Ilex × meserveae Blue Princess = 'Conapri' (f)
  • Ilex 'Nellie R. Stevens' (f)
  • Impatiens omeiana
  • Imperata cylindrica 'Rubra'
  • Incarvillea delavayi
  • Incarvillea delavayi 'Snowtop'
  • Incarvillea olgae
  • Indigofera dielsiana
  • Indigofera heterantha
  • Indigofera himalayensis 'Silk Road'
  • Indigofera kirilowii
  • Indigofera pendula
  • Inula ensifolia
  • Inula hookeri
  • Inula magnifica
  • Ipheion uniflorum 'Wisley Blue'
  • Ipheion 'Alberto Castillo'
  • Ipheion 'Rolf Fiedler'
  • Iris chrysographes black-flowered
  • Iris ensata
  • Iris ensata 'Moonlight Waves'
  • Iris ensata 'Rose Queen'
  • Iris foetidissima
  • Iris lazica
  • Iris orchioides Carrière
  • Iris orientalis ambig.
  • Iris pallida Lam. 'Variegata' Hort. (v)
  • Iris pallida subsp. pallida
  • Iris pseudacorus
  • Iris pseudacorus 'Variegata' (v)
  • Iris reticulata
  • Iris sanguinea 'Snow Queen'
  • Iris unguicularis
  • Iris versicolor 'Kermesina'
  • Iris × robusta 'Gerald Darby'
  • Iris 'Before the Storm' (TB)
  • Iris 'Benton Dierdre' (TB)
  • Iris 'Benton Lorna' (TB)
  • Iris 'Benton Nigel' (TB)
  • Iris 'Benton Sheila' (TB)
  • Iris 'Berkeley Gold' (TB)
  • Iris 'Black Swan' (TB)
  • Iris 'Black Tie Affair' (TB)
  • Iris 'Blue King' (Sib)
  • Iris 'Blue Rhythm' (TB)
  • Iris 'Blue Shimmer' (TB)
  • Iris 'Braithwaite' (TB)
  • Iris 'Butter and Sugar' (Sib)
  • Iris 'Caesar's Brother' (Sib)
  • Iris 'Captive Sun' (SDB)
  • Iris 'Chartreuse Bounty' (Sib)
  • Iris 'Cherry Garden' (SDB)
  • Iris 'Deep Black' (TB)
  • Iris 'Ed's Blue' (DB)
  • Iris 'Edward of Windsor' (TB)
  • Iris 'Flight of Butterflies' (Sib)
  • Iris 'Frost and Flame' (TB)
  • Iris 'Gypsy Beauty' (Dut)
  • Iris 'Harpswell Happiness' (Sib)
  • Iris 'Holden Clough' (SpH)
  • Iris 'Imperator' (TB)
  • Iris 'Indian Chief' (TB)
  • Iris 'Jane Phillips' (TB)
  • Iris 'Kent Pride' (TB)
  • Iris 'Knick Knack' (MDB)
  • Iris 'Matinata' (TB)
  • Iris 'Memphis Memory' (Sib)
  • Iris 'Nibelungen' (TB)
  • Iris 'October Sun' (TB)
  • Iris 'Papillon' (Sib)
  • Iris 'Party Dress' (TB)
  • Iris 'Pink Charm' (TB)
  • Iris 'Pixie' (Reticulata)
  • Iris 'Rajah' (TB)
  • Iris 'Red Orchid' (IB)
  • Iris 'Rimfire' (TB)
  • Iris 'Ruffled Velvet' (Sib)
  • Iris 'Sable' (TB)
  • Iris 'Senlac' (TB)
  • Iris 'Silver Edge' (Sib)
  • Iris 'Silvery Beauty' (Dut)
  • Iris 'Sparkling Rose' (Sib)
  • Iris 'Storrington' (TB)
  • Iris 'Superstition' (TB)
  • Iris 'Susan Bliss' (TB)
  • Iris 'Symphony' (Dut)
  • Iris 'Top Flight' (TB)
  • Iris 'Tropic Night' (Sib)
  • Iris 'Winter Olympics' (TB)
  • Itea ilicifolia
  • Itea ilicifolia 'Rubrifolia'
  • Jasminum beesianum
  • Jasminum humile 'Revolutum'
  • Jasminum nudiflorum
  • Jasminum nudiflorum 'Aureum'
  • Jasminum nudiflorum 'Mystique' (v)
  • Jasminum officinale Fiona Sunrise = 'Frojas' (PBR)
  • Jasminum officinale 'Argenteovariegatum' (v)
  • Jasminum officinale 'Aureum' (v)
  • Jasminum officinale 'Devon Cream' (PBR)
  • Jasminum officinale f. affine
  • Jasminum officinale 'Inverleith'
  • Jasminum polyanthum
  • Jasminum × stephanense
  • Juglans nigra (F)
  • Juglans regia (F)
  • Juglans regia 'Apollo' (F)
  • Juglans regia 'Broadview' (F)
  • Juglans regia 'Buccaneer' (F)
  • Juglans regia 'Jupiter' (F)
  • Juglans regia 'Mars' (F)
  • Juglans regia 'Saturn' (F)
  • Juniperus communis
  • Juniperus communis 'Gold Cone'
  • Juniperus communis 'Green Carpet'
  • Juniperus communis 'Hibernica'
  • Juniperus horizontalis Icee Blue = 'Monber'
  • Juniperus horizontalis 'Blue Chip'
  • Juniperus horizontalis 'Golden Carpet'
  • Juniperus horizontalis 'Limeglow'
  • Juniperus scopulorum 'Blue Arrow'
  • Juniperus squamata 'Blue Star'
  • Kalanchoe beharensis
  • Kalanchoe beharensis 'Fang'
  • Kerria japonica 'Golden Guinea'
  • Kerria japonica 'Pleniflora' (d)
  • Kirengeshoma palmata
  • Kirengeshoma palmata Koreana Group
  • Knautia arvensis
  • Knautia macedonica
  • Knautia macedonica 'Mars Midget'
  • Knautia macedonica Melton pastels
  • Knautia macedonica 'Thunder and Lightning' (PBR) (v)
  • Kniphofia caulescens
  • Kniphofia northiae
  • Kniphofia rooperi
  • Kniphofia 'Bees' Lemon'
  • Kniphofia 'Lemon Popsicle' (PBR) (Popsicle Series)
  • Kniphofia 'Little Maid'
  • Kniphofia 'Mango Popsicle' (PBR) (Popsicle Series)
  • Kniphofia 'Nobilis'
  • Kniphofia 'Papaya Popsicle' (PBR) (Popsicle Series)
  • Kniphofia 'Tawny King'
  • Kniphofia 'Wrexham Buttercup'
  • Koelreuteria paniculata
  • Koelreuteria paniculata 'Fastigiata'
  • Kolkwitzia amabilis
  • Kolkwitzia amabilis 'Pink Cloud'
  • Laburnum alpinum 'Pendulum'
  • Laburnum × watereri 'Vossii'
  • Lagerstroemia indica Petite Pinkie = 'Monkie'
  • Lagerstroemia indica Rhapsody in Pink = 'Whit VIII'
  • Lagerstroemia indica 'Coral Filli' (PBR) (Fleming Filigree Series)
  • Lagerstroemia indica 'Red Filli' (PBR) (Fleming Filigree Series)
  • Lagerstroemia indica 'Violet Filli' (PBR) (Fleming Filigree Series)
  • Lamium galeobdolon 'Hermann's Pride'
  • Lamium maculatum Golden Anniversary = 'Dellam' (PBR) (v)
  • Lamium maculatum 'Beacon Silver'
  • Lamium maculatum 'Pink Pewter'
  • Lamium maculatum 'Red Nancy'
  • Lamium maculatum 'Roseum'
  • Lamium maculatum 'White Nancy'
  • Lamium orvala
  • Lampranthus brownii
  • Lampranthus spectabilis 'Tresco Purple'
  • Lampranthus 'Pink'
  • Lamprocapnos spectabilis
  • Lamprocapnos spectabilis Valentine = 'Hordival' (PBR)
  • Lamprocapnos spectabilis 'Alba'
  • Lantana 'Dallas Red'
  • Lantana 'Miss Huff'
  • Lantana 'Radiation'
  • Larix decidua
  • Larix kaempferi
  • Lathyrus latifolius 'Red Pearl'
  • Lathyrus latifolius 'Rosa Perle'
  • Lathyrus latifolius 'White Pearl'
  • Lathyrus odoratus 'Matucana'
  • Lathyrus vernus
  • Lathyrus vernus 'Alboroseus'
  • Laurus nobilis
  • Laurus nobilis 'Aurea'
  • Lavandula angustifolia Blue Cushion = 'Schola'
  • Lavandula angustifolia Havana = 'Arbelpaso' (PBR)
  • Lavandula angustifolia 'Alba'
  • Lavandula angustifolia 'Coconut Ice'
  • Lavandula angustifolia 'Hidcote'
  • Lavandula angustifolia 'Imperial Gem'
  • Lavandula angustifolia 'Loddon Pink'
  • Lavandula angustifolia 'Munstead'
  • Lavandula angustifolia 'Nana Alba'
  • Lavandula angustifolia 'Peter Pan'
  • Lavandula angustifolia 'Rosea'
  • Lavandula angustifolia 'Twickel Purple'
  • Lavandula pedunculata subsp. pedunculata
  • Lavandula pinnata
  • Lavandula stoechas
  • Lavandula stoechas 'Anouk' (PBR) (Anouk Series)
  • Lavandula stoechas 'Blueberry Ruffles' (PBR) (Ruffles Series)
  • Lavandula stoechas 'Boysenberry Ruffles' (PBR) (Ruffles Series)
  • Lavandula stoechas 'Dark Royalty' (PBR)
  • Lavandula stoechas 'Mulberry Ruffles' (PBR) (Ruffles Series)
  • Lavandula stoechas subsp. stoechas 'Purple Wings'
  • Lavandula × chaytoriae Silver Sands = 'Fair 14' (PBR)
  • Lavandula × intermedia Walberton's Silver Edge = 'Walvera' (v)
  • Lavandula × intermedia 'Grosso'
  • Lavandula × intermedia 'Twickel Purple'
  • Lavandula Big Time Blue = 'Armtipp01'
  • Lavandula 'Fathead'
  • Lavandula 'Helmsdale' (PBR)
  • Lavandula 'Pretty Polly'
  • Lavandula 'Regal Splendour' (PBR)
  • Lavatera arborea 'Variegata' (v)
  • Lavatera olbia 'Lilac Lady'
  • Lavatera × clementii 'Barnsley'
  • Lavatera × clementii 'Barnsley Baby'
  • Lavatera × clementii 'Burgundy Wine'
  • Ledebouria cooperi
  • Leontodon rigens
  • Leontopodium nivale subsp. alpinum
  • Leptinella atrata subsp. luteola
  • Leptinella dendyi
  • Leptospermum scoparium (Nanum Group) 'Kiwi'
  • Leptospermum scoparium 'Red Damask' (d)
  • Leptospermum scoparium 'Ruby Wedding'
  • Leptospermum 'Silver Sheen'
  • Lespedeza thunbergii
  • Lespedeza thunbergii subsp. thunbergii 'Albiflora'
  • Lespedeza thunbergii subsp. thunbergii 'Edo-shibori'
  • Leucanthemum × superbum 'Alaska'
  • Leucanthemum × superbum 'Becky'
  • Leucanthemum × superbum 'Bishopstone'
  • Leucanthemum × superbum 'Brightside'
  • Leucanthemum × superbum 'Goldrausch' (PBR)
  • Leucanthemum × superbum 'Ice Star'
  • Leucanthemum × superbum 'Phyllis Smith'
  • 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 'Sonnenschein'
  • Leucanthemum × superbum 'Starburst' (d)
  • Leucanthemum × superbum 'Wirral Supreme' (d)
  • Leucanthemum 'Sante'
  • Leucojum aestivum 'Gravetye Giant'
  • Leucothoe axillaris 'Curly Red' (PBR)
  • Leucothoe Scarletta = 'Zeblid'
  • Leycesteria formosa
  • Leycesteria formosa Golden Lanterns = 'Notbruce' (PBR)
  • Leymus arenarius
  • Liatris spicata
  • Liatris spicata 'Alba'
  • Liatris spicata 'Kobold'
  • Libertia chilensis
  • Libertia chilensis Formosa Group
  • Libertia ixioides 'Goldfinger' (v)
  • Libertia ixioides 'Taupo Blaze'
  • Libertia peregrinans
  • Libertia peregrinans 'Gold Leaf'
  • Ligularia dentata 'Desdemona'
  • Ligularia dentata 'Midnight Lady'
  • Ligularia przewalskii
  • Ligularia 'Britt Marie Crawford' (PBR)
  • Ligularia 'The Rocket'
  • Ligularia 'Zepter'
  • Ligusticum scoticum
  • Ligustrum delavayanum
  • Ligustrum japonicum 'Rotundifolium'
  • Ligustrum lucidum
  • Ligustrum lucidum 'Excelsum Superbum' (v)
  • Ligustrum lucidum 'Tricolor' (v)
  • Ligustrum ovalifolium
  • Ligustrum ovalifolium 'Argenteum' (v)
  • Ligustrum ovalifolium 'Aureum' (v)
  • Ligustrum ovalifolium 'Lemon and Lime' (v)
  • Ligustrum ovalifolium 'Vicaryi'
  • Ligustrum quihoui
  • Ligustrum vulgare
  • Lilium candidum (IXb/a)
  • Lilium formosanum var. pricei (IXb/a)
  • Lilium regale (IXb/a)
  • Limnanthes douglasii
  • Limonium platyphyllum 'Violetta'
  • Linaria purpurea
  • Linaria purpurea 'Canon Went'
  • Liquidambar acalycina
  • Liquidambar acalycina 'Spinners'
  • Liquidambar styraciflua
  • Liquidambar styraciflua 'Gum Ball'
  • Liquidambar styraciflua 'Lane Roberts'
  • Liquidambar styraciflua 'Pasquali Fastigiata'
  • Liquidambar styraciflua 'Slender Silhouette'
  • Liquidambar styraciflua 'Thea'
  • Liquidambar styraciflua 'Variegata' Overeynder (v)
  • Liquidambar styraciflua 'Worplesdon'
  • Liriodendron tulipifera
  • Liriodendron tulipifera 'Aureomarginatum' (v)
  • Liriodendron tulipifera 'Fastigiatum'
  • Liriope muscari
  • Liriope muscari 'Big Blue'
  • Liriope muscari 'Kindi Pink'
  • Liriope muscari 'Monroe White'
  • Liriope muscari 'Variegata' (v)
  • Lobelia cardinalis 'Queen Victoria'
  • Lobelia siphilitica
  • Lobelia tupa
  • Lobelia × speciosa 'Fan Blau' (Fan Series)
  • Lobelia × speciosa 'Fan Burgundy' (Fan Series)
  • Lobelia × speciosa 'Fan Scharlach' (Fan Series)
  • Lobelia × speciosa 'Pink Elephant'
  • Lobelia × speciosa 'Pink Flamingo'
  • Lobelia × speciosa 'Ruby Slippers'
  • Lobelia × speciosa 'Russian Princess' purple-flowered
  • Lobelia × speciosa 'Tania'
  • Lonicera etrusca 'Michael Rosse'
  • Lonicera etrusca 'Superba'
  • Lonicera fragrantissima
  • Lonicera japonica 'Aureoreticulata' (v)
  • Lonicera japonica 'Halliana'
  • Lonicera japonica 'Hall's Prolific'
  • Lonicera japonica 'Mint Crisp' (PBR) (v)
  • Lonicera japonica 'Princess Kate'
  • Lonicera japonica var. repens
  • Lonicera ligustrina var. yunnanensis 'Baggesen's Gold'
  • Lonicera ligustrina var. yunnanensis 'Maigrün'
  • Lonicera periclymenum 'Belgica'
  • Lonicera periclymenum 'Graham Thomas'
  • Lonicera periclymenum 'Scentsation' (PBR)
  • Lonicera periclymenum 'Serotina'
  • Lonicera periclymenum 'Sweet Sue'
  • Lonicera similis var. delavayi
  • Lonicera standishii var. lancifolia 'Budapest'
  • Lonicera syringantha
  • Lonicera tatarica 'Hack's Red'
  • Lonicera tragophylla
  • Lonicera × brownii 'Dropmore Scarlet'
  • Lonicera × heckrottii 'Gold Flame' hort.
  • Lonicera × purpusii 'Winter Beauty'
  • Lonicera × tellmanniana
  • Lophomyrtus × ralphii 'Magic Dragon' (PBR) (v)
  • Lotus hirsutus
  • Luma apiculata
  • Luma apiculata 'Glanleam Gold' (v)
  • Lupinus arboreus
  • Lupinus arboreus 'Blue Boy'
  • Lupinus arboreus white-flowered
  • Lupinus arboreus yellow-flowered
  • Lupinus 'Beefeater'
  • Lupinus 'Blossom' (PBR)
  • Lupinus 'Chandelier' (Band of Nobles Series)
  • Lupinus 'Desert Sun' (PBR)
  • Lupinus 'Gallery Blue' (Gallery Series)
  • Lupinus 'Gallery Pink' (Gallery Series)
  • Lupinus 'Gallery Red' (Gallery Series)
  • Lupinus 'Gallery White' (Gallery Series)
  • Lupinus 'Gallery Yellow' (Gallery Series)
  • Lupinus 'Gladiator' (PBR)
  • Lupinus 'King Canute' (PBR)
  • Lupinus 'Manhattan Lights' (PBR)
  • Lupinus 'Masterpiece' (PBR)
  • Lupinus 'My Castle' (Band of Nobles Series)
  • Lupinus 'Noble Maiden' (Band of Nobles Series)
  • Lupinus 'Persian Slipper' (PBR)
  • Lupinus 'Polar Princess'
  • Lupinus 'Red Rum' (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 pilosa 'Igel'
  • Luzula sylvatica
  • Luzula sylvatica 'Marginata' (v)
  • Lychnis chalcedonica
  • Lychnis chalcedonica 'Carnea'
  • Lychnis coronaria
  • Lychnis coronaria Gardeners' World = 'Blych' (d)
  • Lychnis coronaria 'Alba'
  • Lychnis coronaria Oculata Group
  • Lychnis flos-cuculi 'Petite Jenny' (d)
  • Lychnis viscaria subsp. atropurpurea
  • Lycianthes rantonnetii
  • Lysimachia atropurpurea
  • Lysimachia ciliata 'Firecracker'
  • Lysimachia clethroides
  • Lysimachia ephemerum
  • Lysimachia punctata 'Alexander' (v)
  • Lythrum salicaria 'Blush'
  • Lythrum salicaria 'Feuerkerze'
  • Lythrum salicaria 'Morden Pink'
  • Lythrum salicaria 'Robert'
  • Lythrum salicaria 'Swirl'
  • Macleaya microcarpa 'Kelway's Coral Plume'
  • Magnolia denudata
  • Magnolia figo
  • Magnolia grandiflora 'Exmouth'
  • Magnolia grandiflora 'Ferruginea'
  • Magnolia grandiflora 'Goliath'
  • Magnolia grandiflora 'Kay Parris'
  • Magnolia grandiflora 'Little Gem'
  • Magnolia grandiflora 'Nannetensis' (d)
  • Magnolia grandiflora 'Victoria'
  • Magnolia liliiflora 'Nigra'
  • Magnolia salicifolia 'Wada's Memory'
  • Magnolia stellata
  • Magnolia stellata 'Jane Platt'
  • Magnolia stellata 'Rosea'
  • Magnolia stellata 'Water Lily'
  • Magnolia tripetala
  • Magnolia wilsonii
  • Magnolia yunnanensis
  • Magnolia × loebneri 'Leonard Messel'
  • Magnolia × loebneri 'Merrill'
  • Magnolia × soulangeana
  • Magnolia × soulangeana 'Lennei Alba'
  • Magnolia Black Tulip = 'Jurmag1' (PBR)
  • Magnolia Felix Jury = 'Jurmag2' (PBR)
  • Magnolia 'Butterflies'
  • Magnolia 'Daphne'
  • Magnolia 'Daybreak'
  • Magnolia 'Genie' (PBR)
  • Magnolia 'Heaven Scent'
  • Magnolia 'Joli Pompom'
  • Magnolia 'March til Frost'
  • Magnolia 'Rebecca's Perfume'
  • Magnolia 'Spectrum'
  • Magnolia 'Star Wars'
  • Magnolia 'Sunsation'
  • Magnolia 'Susan'
  • Magnolia 'Vulcan'
  • Magnolia 'Yellow Lantern'
  • Mahonia aquifolium 'Apollo'
  • Mahonia aquifolium 'Atropurpurea'
  • Mahonia aquifolium 'Smaragd'
  • Mahonia bealei
  • Mahonia eurybracteata subsp. ganpinensis 'Soft Caress'
  • Mahonia nitens
  • Mahonia oiwakensis subsp. lomariifolia
  • Mahonia × media 'Charity'
  • Mahonia × media 'Winter Sun'
  • Mahonia × wagneri 'Pinnacle'
  • Mahonia Blackfoot = 'Bokrafoot' (PBR)
  • Maianthemum racemosum
  • Malotigena frantiskae-niederlovae 'White Nugget'
  • Malus domestica 'Beauty of Bath' (D)
  • 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 'Egremont Russet' (D)
  • Malus domestica 'Golden Delicious' (D)
  • Malus domestica 'Greensleeves' (PBR) (D)
  • Malus domestica 'Jonagold' (D)
  • Malus domestica 'Lemon Pippin' (C)
  • Malus domestica 'Lord Lambourne' (D)
  • Malus domestica 'Red Windsor' (D)
  • Malus domestica 'Rosemary Russet' (D)
  • Malus domestica 'Saint Edmund's Pippin' (D)
  • Malus domestica 'Scrumptious' (PBR) (D)
  • Malus domestica 'Spartan' (D)
  • Malus toringo 'Aros' (PBR)
  • Malus toringo 'Scarlett'
  • Malus transitoria
  • Malus trilobata
  • Malus tschonoskii
  • Malus × floribunda
  • Malus × moerlandsii 'Profusion'
  • Malus × robusta 'Red Sentinel'
  • Malus × scheideckeri 'Red Jade'
  • Malus × zumi 'Golden Hornet'
  • Malus 'Adirondack'
  • Malus 'Evereste'
  • Malus 'John Downie' (C)
  • Malus 'Laura'
  • Malus 'Royalty'
  • Malus 'Sun Rival'
  • Malva moschata
  • Malva moschata f. alba
  • Malva sylvestris var. mauritiana 'Primley Blue'
  • Mandevilla laxa
  • Mathiasella bupleuroides 'Green Dream'
  • Matteuccia struthiopteris
  • Matthiola incana 'Alba'
  • Mazus reptans
  • Meconopsis (Fertile Blue Group) 'Lingholm'
  • Melanoselinum decipiens
  • Melianthus major
  • Melissa officinalis 'Aurea' (v)
  • Melittis melissophyllum 'Royal Velvet Distinction' (PBR)
  • Mertensia virginica
  • Mespilus germanica 'Bredase Reus' (F)
  • Mespilus germanica 'Nottingham' (F)
  • Metasequoia glyptostroboides
  • Metasequoia glyptostroboides 'Golden Oji'
  • Milium effusum 'Aureum'
  • Mimulus cardinalis
  • Mimulus 'Roter Kaiser'
  • Miscanthus sacchariflorus ambig.
  • Miscanthus sinensis 'Adagio'
  • Miscanthus sinensis 'Cute One'
  • Miscanthus sinensis 'Dixieland' (v)
  • Miscanthus sinensis 'Ferner Osten'
  • Miscanthus sinensis 'Flamingo'
  • Miscanthus sinensis 'Gold Bar' (PBR) (v)
  • Miscanthus sinensis 'Gracillimus'
  • Miscanthus sinensis 'Kleine Fontäne'
  • Miscanthus sinensis 'Malepartus'
  • Miscanthus sinensis 'Morning Light' (v)
  • Miscanthus sinensis 'Silberfeder'
  • Miscanthus sinensis 'Strictus' (v)
  • Miscanthus sinensis var. condensatus 'Cabaret' (v)
  • Miscanthus sinensis 'Variegatus' (v)
  • Miscanthus sinensis 'Yaku-jima'
  • Miscanthus sinensis 'Yakushima Dwarf'
  • Miscanthus sinensis 'Zebrinus' (v)
  • Miscanthus 'Purpurascens'
  • Modiolastrum lateritium
  • Molinia caerulea subsp. arundinacea 'Cordoba'
  • Molinia caerulea subsp. arundinacea 'Skyracer'
  • Molinia caerulea subsp. arundinacea 'Transparent'
  • Molinia caerulea subsp. caerulea 'Edith Dudszus'
  • Molinia caerulea subsp. caerulea 'Variegata' (v)
  • Molopospermum peloponnesiacum
  • Monarda 'Beauty of Cobham'
  • Monarda 'Cambridge Scarlet'
  • Monarda 'Croftway Pink'
  • Monarda 'Fishes'
  • Monarda 'Mahogany'
  • Monarda 'Pink Supreme' (PBR)
  • Monarda 'Prärienacht'
  • Monarda 'Schneewittchen'
  • Monarda 'Scorpion'
  • Monarda 'Squaw'
  • Monarda 'Violet Queen'
  • Morina longifolia
  • Morisia monanthos 'Fred Hemingway'
  • Morus alba
  • Morus alba 'Laciniata'
  • Morus alba 'Pendula'
  • Morus nigra (F)
  • Morus 'Carman' (F)
  • Morus 'Wellington' (F)
  • Muehlenbeckia astonii
  • Muehlenbeckia complexa
  • Muhlenbergia capillaris
  • Mukdenia rossii 'Karasuba'
  • Musa acuminata 'Dwarf Cavendish' (AAA Group) (F)
  • Musa basjoo
  • Muscari armeniacum 'Dark Eyes'
  • Muscari armeniacum 'Touch of Snow'
  • Muscari azureum
  • Muscari comosum 'Plumosum'
  • Muscari latifolium
  • Muscari latifolium 'Grape Ice'
  • Myosotidium hortensia
  • Myosotis sylvatica 'Indigo'
  • Myrrhis odorata
  • Myrtus communis
  • Myrtus communis subsp. tarentina
  • Myrtus communis 'Variegata' (v)
  • Nandina domestica
  • Nandina domestica Magical Lemon and Lime = 'Lemlim' (PBR)
  • Nandina domestica 'Fire Power'
  • Nandina domestica 'Gulf Stream'
  • Nandina domestica 'Richmond'
  • Narcissus papyraceus 'Ziva' (8)
  • Narcissus poeticus var. recurvus (13)
  • Narcissus 'Avalanche' (8)
  • Narcissus 'Cheerfulness' (4)
  • Narcissus 'February Gold' (6)
  • Narcissus 'Jack Snipe' (6)
  • Narcissus 'Lemon Silk' (6)
  • Narcissus 'Minnow' (8)
  • Narcissus 'Segovia' (3)
  • Narcissus 'Tahiti' (4)
  • Narcissus 'Thalia' (5)
  • Narcissus 'Yellow Cheerfulness' (4)
  • Neillia thibetica
  • Nepeta govaniana
  • Nepeta grandiflora 'Dawn to Dusk'
  • Nepeta nervosa
  • Nepeta racemosa 'Felix'
  • Nepeta racemosa 'Snowflake'
  • Nepeta racemosa 'Walker's Low'
  • Nepeta sibirica
  • Nepeta sibirica 'Souvenir d'André Chaudron'
  • Nepeta subsessilis
  • Nepeta subsessilis 'Pink Dreams'
  • Nepeta × faassenii
  • Nepeta × faassenii 'Alba'
  • Nepeta × faassenii 'Blue Wonder'
  • Nepeta 'Purple Haze' (PBR)
  • Nepeta 'Six Hills Giant'
  • Nerine bowdenii 'Bianca Perla'
  • Nerine bowdenii 'Isabel'
  • Nerine bowdenii 'Ostara'
  • Nerine bowdenii 'Stefanie'
  • Nerine 'Mr John'
  • Nerine 'Pink Triumph'
  • Nicandra physalodes
  • Nicotiana sylvestris
  • Nothofagus alpina
  • Nothofagus antarctica
  • Nyssa sinensis
  • Nyssa sylvatica
  • Nyssa sylvatica Red Rage = 'Haymanred'
  • Nyssa sylvatica 'Lakeside Weeper'
  • Nyssa sylvatica 'Wisley Bonfire' (m)
  • Oemleria cerasiformis
  • Oenanthe javanica 'Flamingo' (v)
  • Oenothera biennis
  • Oenothera lindheimeri (G)
  • Oenothera lindheimeri Cherry Brandy = 'Gauchebra' (PBR) (G)
  • Oenothera lindheimeri Karalee White = 'Nugauwhite' (PBR) (G)
  • Oenothera lindheimeri Rosyjane = 'Harrosy' (PBR) (G)
  • Oenothera lindheimeri 'Corrie's Gold' (G/v)
  • Oenothera lindheimeri 'Crimson Butterflies' (PBR) (G)
  • Oenothera lindheimeri 'Siskiyou Pink' (G)
  • Oenothera lindheimeri 'The Bride' (G)
  • Oenothera lindheimeri 'Whirling Butterflies' (G)
  • Oenothera macrocarpa
  • Oenothera macrocarpa subsp. fremontii 'Silver Wings'
  • Oenothera pilosella 'Yella Fella'
  • Oenothera speciosa Twilight = 'Turner01' (PBR) (v)
  • Oenothera speciosa 'Siskiyou'
  • Oenothera stricta 'Sulphurea'
  • Olea europaea (F)
  • Olearia macrodonta
  • Olearia macrodonta 'Minor'
  • Olearia nummularifolia
  • Olearia phlogopappa 'Comber's Blue'
  • Olearia phlogopappa 'Comber's Pink'
  • Olearia × haastii
  • Omphalodes cappadocica 'Cherry Ingram'
  • Omphalodes cappadocica 'Starry Eyes'
  • Omphalodes linifolia
  • Onoclea sensibilis
  • Onopordum acanthium
  • Onosma alborosea
  • Ophiopogon planiscapus 'Kokuryu'
  • Origanum vulgare 'Aureum'
  • Origanum vulgare 'Thumble's Variety'
  • Origanum 'Barbara Tingey'
  • Origanum 'Frank Tingey'
  • Orlaya grandiflora
  • Ornithogalum nutans
  • Ornithogalum umbellatum
  • Osmanthus delavayi
  • Osmanthus heterophyllus
  • Osmanthus heterophyllus all gold
  • Osmanthus heterophyllus 'Goshiki' (v)
  • Osmanthus heterophyllus 'Purple Shaft'
  • Osmanthus heterophyllus 'Variegatus' (v)
  • Osmanthus × burkwoodii
  • Osmunda cinnamomea
  • Osmunda regalis
  • Osmunda regalis 'Purpurascens'
  • Osteospermum jucundum var. compactum
  • Osteospermum 'Buttermilk'
  • Osteospermum 'Cannington Roy'
  • Osteospermum 'Lady Leitrim'
  • Osteospermum 'Nairobi Purple'
  • Osteospermum 'Snow Pixie'
  • Osteospermum 'Weetwood'
  • Ostrya carpinifolia
  • Oxalis adenophylla
  • Oxalis articulata
  • Oxalis articulata 'Alba'
  • Oxalis tetraphylla 'Iron Cross'
  • Ozothamnus ledifolius
  • Ozothamnus rosmarinifolius
  • Ozothamnus rosmarinifolius 'Silver Jubilee'
  • Ozothamnus selago
  • Ozothamnus 'Threave Seedling'
  • Pachysandra terminalis
  • Pachysandra terminalis 'Green Carpet'
  • Pachysandra terminalis 'Green Sheen'
  • Pachysandra terminalis 'Variegata' (v)
  • Paeonia daurica subsp. mlokosewitschii
  • Paeonia delavayi (S)
  • Paeonia lactiflora 'Bowl of Beauty'
  • Paeonia lactiflora 'Duchesse de Nemours'
  • Paeonia lactiflora 'Félix Crousse'
  • Paeonia lactiflora 'Festiva Maxima'
  • Paeonia lactiflora 'Florence Nicholls'
  • Paeonia lactiflora 'Kansas'
  • Paeonia lactiflora 'Monsieur Jules Elie'
  • Paeonia lactiflora 'Paul M. Wild'
  • Paeonia lactiflora 'Peter Brand'
  • Paeonia lactiflora 'Pillow Talk'
  • Paeonia lactiflora 'Raspberry Sundae'
  • Paeonia lactiflora 'Sarah Bernhardt'
  • Paeonia lactiflora 'White Wings'
  • Paeonia ludlowii (S)
  • Paeonia × festiva 'Alba Plena' (d)
  • Paeonia × festiva 'Rosea Plena' (d)
  • Paeonia × festiva 'Rubra Plena' (d)
  • Paeonia 'Bartzella' (d)
  • Paeonia 'Buckeye Belle' (d)
  • Paeonia 'Copper Kettle' (d)
  • Paeonia 'Cora Louise'
  • Paeonia 'Court Jester'
  • Paeonia 'Early Windflower'
  • Paeonia 'Lemon Dream' (PBR)
  • Paeonia 'Lollipop' (d)
  • Paeonia 'Love Affair'
  • Paeonia 'Old Rose Dandy'
  • Paeonia 'Pastel Splendor'
  • Paeonia 'Raggedy Ann'
  • Paeonia 'Scarlet Heaven'
  • Paeonia 'Sonoma Amethyst'
  • Paeonia 'White Emperor'
  • Panicum virgatum 'Dallas Blues'
  • Panicum virgatum 'Heavy Metal'
  • Panicum virgatum 'Rehbraun'
  • Panicum virgatum 'Rotstrahlbusch'
  • Panicum virgatum 'Shenandoah'
  • Panicum virgatum 'Squaw'
  • Panicum virgatum 'Warrior'
  • Papaver cambricum
  • Papaver (Oriental Group) 'Beauty of Livermere'
  • Papaver (Oriental Group) 'Goliath'
  • Papaver (Oriental Group) 'Patty's Plum'
  • Papaver (Oriental Group) 'Plum Pudding'
  • Papaver (Oriental Group) 'Prinzessin Victoria Louise'
  • Papaver (Oriental Group) 'Royal Chocolate Distinction'
  • Papaver (Oriental Group) 'Royal Wedding'
  • Papaver (Oriental Group) 'Ruffled Patty' (PBR)
  • Parahebe catarractae
  • Parahebe lyallii
  • Parahebe 'Snow Clouds'
  • Parrotia persica
  • Parrotia persica 'Summer Bronze'
  • Parrotia persica 'Vanessa'
  • Parthenocissus henryana
  • Parthenocissus himalayana var. rubrifolia
  • Parthenocissus quinquefolia
  • Parthenocissus tricuspidata 'Fenway Park'
  • Parthenocissus tricuspidata 'Green Spring'
  • Parthenocissus tricuspidata 'Lowii'
  • Parthenocissus tricuspidata 'Veitchii'
  • Passiflora caerulea
  • Passiflora caerulea White Lightning = 'Yanpas' (PBR)
  • Passiflora caerulea 'Clear Sky' (PBR)
  • Passiflora caerulea 'Constance Eliott'
  • Passiflora 'Betty Myles Young'
  • Passiflora 'Damsel's Delight'
  • Passiflora 'Party Animal'
  • Passiflora 'Purple Haze'
  • Passiflora 'Snow Queen' (PBR)
  • Passiflora 'Star of Surbiton'
  • Paulownia tomentosa
  • Pelargonium denticulatum 'Filicifolium' (Sc)
  • Pelargonium papilionaceum
  • Pelargonium quercifolium (Sc)
  • Pelargonium sidoides
  • Pelargonium Tommy = 'Pactommy' (I)
  • Pelargonium 'Ardens'
  • Pelargonium 'Berkswell Carnival' (A)
  • Pelargonium 'Chocolate Peppermint' (Sc)
  • Pelargonium 'Citriodorum' (Sc)
  • Pelargonium 'Cola Bottles'
  • Pelargonium 'Crimson Unique' (U)
  • Pelargonium 'Crocodile' (I/C/d)
  • Pelargonium 'Gartendirektor Herman' (Dec)
  • Pelargonium 'Lady Plymouth' (Sc/v)
  • Pelargonium 'Lord Bute' (R)
  • Pelargonium 'Mr Wren' (Z)
  • Pelargonium 'Mrs Pollock' (Z/v)
  • Pelargonium 'New Gypsy' (R)
  • Pelargonium 'Paton's Unique' (U/Sc)
  • Pelargonium 'Quantock Candy' (A)
  • Pelargonium 'Radula' (Sc)
  • Pelargonium 'Rimfire' (R)
  • Pelargonium 'Sweet Mimosa' (Sc)
  • Pennisetum alopecuroides 'Hameln'
  • Pennisetum alopecuroides 'Little Bunny'
  • Pennisetum alopecuroides 'Little Honey' (v)
  • Pennisetum alopecuroides 'Red Head'
  • Pennisetum villosum
  • Penstemon digitalis 'Husker Red'
  • Penstemon heterophyllus 'Heavenly Blue'
  • Penstemon pinifolius 'Mersea Yellow'
  • Penstemon × mexicanus 'Sunburst Amethyst'
  • Penstemon × mexicanus 'Sunburst Ruby'
  • Penstemon 'Alice Hindley'
  • Penstemon 'Apple Blossom'
  • Penstemon 'Beech Park'
  • Penstemon 'Blackbird' (Bird Series)
  • Penstemon 'Cathedral Rose'
  • Penstemon 'Charles Rudd'
  • Penstemon 'Evelyn'
  • Penstemon 'Hidcote Pink'
  • Penstemon 'King George V'
  • Penstemon 'Midnight'
  • Penstemon 'Mother of Pearl'
  • Penstemon 'Purple Bedder'
  • Penstemon 'Purple Passion'
  • Penstemon 'Rich Ruby'
  • Penstemon 'Rubicundus'
  • Penstemon 'Sour Grapes' M. Fish
  • Penstemon 'White Bedder'
  • Persicaria affinis 'Darjeeling Red'
  • Persicaria affinis 'Donald Lowndes'
  • Persicaria affinis 'Superba'
  • Persicaria alpina
  • Persicaria amplexicaulis Orange Field = 'Orangofield' (PBR)
  • Persicaria amplexicaulis 'Atrosanguinea'
  • Persicaria amplexicaulis 'Blackfield' (PBR)
  • Persicaria amplexicaulis 'Rosea'
  • Persicaria amplexicaulis 'White Eastfield'
  • Persicaria bistorta 'Superba'
  • Persicaria microcephala 'Red Dragon' (PBR)
  • Persicaria runcinata 'Purple Fantasy'
  • Petasites fragrans
  • Phalaris arundinacea var. picta 'Picta' (v)
  • Philadelphus coronarius 'Aureus'
  • Philadelphus coronarius 'Variegatus' (v)
  • Philadelphus maculatus 'Mexican Jewel'
  • Philadelphus microphyllus
  • Philadelphus 'Belle Étoile'
  • Philadelphus 'Erectus'
  • Philadelphus 'Innocence' (v)
  • Philadelphus 'Manteau d'Hermine' (d)
  • Philadelphus 'Silberregen'
  • Philadelphus 'Starbright' (PBR)
  • Philadelphus 'Virginal' (d)
  • Phillyrea angustifolia
  • Phillyrea latifolia
  • Phlomis chrysophylla
  • Phlomis fruticosa
  • Phlomis grandiflora 'Lloyd's Silver'
  • Phlomis italica
  • Phlomis purpurea
  • Phlomis purpurea 'Alba'
  • Phlomis russeliana
  • Phlomis tuberosa
  • Phlomis tuberosa 'Amazone'
  • Phlox divaricata subsp. laphamii 'Chattahoochee'
  • Phlox douglasii 'Boothman's Variety'
  • Phlox douglasii 'Crackerjack'
  • Phlox douglasii 'Ice Mountain'
  • Phlox douglasii 'Red Admiral'
  • Phlox douglasii 'Rosea'
  • Phlox douglasii 'White Admiral'
  • Phlox paniculata Famous Cerise (Famous Series)
  • Phlox paniculata Famous Pink Dark Eye = 'Appofapide' (Famous Series)
  • Phlox paniculata Famous Purple = 'Appotwpu' (PBR) (Famous Series)
  • Phlox paniculata Famous White Eye = 'Appofamwe' (PBR) (Famous Series)
  • Phlox paniculata Famous White (Famous Series)
  • Phlox paniculata 'Blue Boy'
  • Phlox paniculata 'Brigadier'
  • Phlox paniculata 'Europa'
  • Phlox paniculata 'Eva Cullum'
  • Phlox paniculata 'Franz Schubert'
  • Phlox paniculata 'Mardi Gras'
  • Phlox paniculata 'Norah Leigh' (v)
  • Phlox paniculata 'Starfire'
  • Phlox paniculata 'Uspekh'
  • Phlox paniculata 'White Admiral'
  • Phlox subulata 'Emerald Cushion Blue'
  • Phlox subulata 'McDaniel's Cushion'
  • Phlox subulata 'Tamaongalei'
  • Phlox subulata 'White Delight'
  • Phlox × arendsii 'Miss Jill' (Spring Pearl Series)
  • Phlox × arendsii 'Miss Mary' (Spring Pearl Series)
  • Phlox × arendsii 'Miss Wilma' (Spring Pearl Series)
  • Phormium cookianum subsp. hookeri 'Tricolor' (v)
  • Phormium tenax Purpureum Group
  • Phormium Black Velvet = 'Seivel' (PBR)
  • Phormium 'Bronze Baby'
  • Phormium 'Chocomint' (PBR)
  • Phormium 'Jester' (v)
  • Photinia davidiana
  • Photinia davidiana 'Palette' (v)
  • Photinia serratifolia Pink Crispy = 'Oploo5' (PBR)
  • Photinia × fraseri Pink Marble = 'Cassini' (v)
  • Photinia × fraseri 'Little Red Robin'
  • Photinia × fraseri 'Red Robin'
  • Photinia 'Redstart'
  • Phuopsis stylosa
  • Phygelius aequalis 'Trewidden Pink'
  • Phygelius aequalis 'Yellow Trumpet'
  • Phygelius × rectus Somerford Funfair Wine = 'Yapwin' (Somerford Funfair Series)
  • Phygelius × rectus 'African Queen'
  • Phygelius × rectus 'Moonraker'
  • Phygelius × rectus 'Salmon Leap'
  • Phyllostachys aurea
  • Phyllostachys aureosulcata f. spectabilis
  • Phyllostachys nigra
  • Physalis alkekengi var. franchetii
  • Physocarpus opulifolius Lady in Red = 'Tuilad' (PBR)
  • Physocarpus opulifolius Summer Wine = 'Seward' (PBR)
  • Physocarpus opulifolius 'Dart's Gold'
  • Physocarpus opulifolius 'Diabolo' (PBR)
  • Physostegia virginiana 'Summer Snow'
  • Physostegia virginiana var. speciosa 'Variegata' (v)
  • Physostegia virginiana 'Vivid'
  • Phyteuma scheuchzeri
  • Phytolacca americana
  • Picea abies 'Clanbrassiliana'
  • Picea abies 'Little Gem'
  • Picea abies 'Rydal'
  • Picea abies 'Wills Zwerg'
  • Picea glauca var. albertiana 'Alberta Globe'
  • Picea glauca var. albertiana 'Conica'
  • Picea glauca var. albertiana 'J.W. Daisy's White'
  • Pieris japonica 'Bonfire'
  • Pieris japonica 'Carnaval' (v)
  • Pieris japonica 'Katsura' (PBR)
  • Pieris japonica 'Little Heath' (v)
  • Pieris 'Flaming Silver' (v)
  • Pieris 'Forest Flame'
  • Pilea peperomioides
  • Pileostegia viburnoides
  • Pilosella aurantiaca
  • Pinus mugo 'Mops'
  • Pinus mugo 'Ophir'
  • Pinus mugo Pumilio Group
  • Pinus radiata
  • Pinus sylvestris
  • Pittosporum eugenioides
  • Pittosporum tenuifolium
  • Pittosporum tenuifolium 'Abbotsbury Gold' (f/v)
  • Pittosporum tenuifolium 'Atropurpureum'
  • Pittosporum tenuifolium 'Cratus'
  • Pittosporum tenuifolium 'French Lace'
  • Pittosporum tenuifolium 'Gold Star'
  • Pittosporum tenuifolium 'Golden Ball'
  • Pittosporum tenuifolium 'Golf Ball' (PBR)
  • Pittosporum tenuifolium 'Irene Paterson' (m/v)
  • Pittosporum tenuifolium 'Pompom'
  • Pittosporum tenuifolium 'Silver Ball' (v)
  • Pittosporum tenuifolium 'Silver Queen' (f/v)
  • Pittosporum tenuifolium 'Tandara Gold' (v)
  • Pittosporum tenuifolium 'Tom Thumb'
  • Pittosporum tenuifolium 'Warnham Gold' (m)
  • Pittosporum tobira
  • Pittosporum tobira 'Nanum'
  • Pittosporum tobira 'Variegatum' (v)
  • Pittosporum 'Garnettii' (v)
  • Pittosporum 'Trim's Hedger'
  • Platanus × hispanica
  • Pleioblastus pygmaeus
  • Pleioblastus variegatus (v)
  • Plumbago auriculata
  • Plumbago auriculata f. alba
  • Poa labillardierei
  • Podocarpus 'Chocolate Box' (f)
  • Podophyllum versipelle 'Spotty Dotty' (PBR) (v)
  • Podophyllum 'Kaleidoscope' (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 'Pink Beauty'
  • Polygala virgata
  • Polygala × dalmaisiana
  • Polygonatum biflorum
  • Polygonatum humile
  • Polygonatum odoratum var. pluriflorum 'Variegatum' (v)
  • Polygonatum × hybridum
  • Polygonatum 'Langthorn's Variegated' (v)
  • Polystichum aculeatum
  • Polystichum munitum
  • Polystichum polyblepharum
  • Polystichum setiferum
  • Polystichum setiferum (Congestum Group) 'Congestum'
  • Polystichum setiferum (Divisilobum Group) 'Dahlem'
  • Polystichum setiferum (Divisilobum Group) 'Herrenhausen'
  • Polystichum setiferum Divisilobum Group
  • Populus alba 'Raket'
  • Populus deltoides 'Purple Tower' (PBR)
  • Populus nigra 'Italica' (m)
  • Populus tremula
  • Populus ( × canadensis 'Aurea') × ( × jackii 'Aurora')
  • Potentilla alba
  • Potentilla atrosanguinea var. argyrophylla
  • Potentilla fruticosa Marian Red Robin = 'Marrob' (PBR)
  • Potentilla fruticosa Princess = 'Blink'
  • Potentilla fruticosa 'Abbotswood'
  • Potentilla fruticosa 'Daydawn'
  • Potentilla fruticosa 'Groneland'
  • Potentilla fruticosa 'Medicine Wheel Mountain'
  • Potentilla fruticosa 'Pink Beauty' (PBR)
  • Potentilla fruticosa 'Pretty Polly'
  • Potentilla fruticosa 'Primrose Beauty'
  • Potentilla fruticosa 'Red Ace'
  • Potentilla fruticosa 'Red Lady' (PBR)
  • Potentilla fruticosa 'Tilford Cream'
  • Potentilla fruticosa 'Vilmoriniana'
  • Potentilla megalantha
  • Potentilla nepalensis 'Miss Willmott'
  • Potentilla nepalensis 'Ron McBeath'
  • Potentilla nepalensis 'Roxana'
  • Potentilla thurberi 'Monarch's Velvet'
  • Potentilla × hopwoodiana
  • Potentilla × tonguei
  • Potentilla 'Arc-en-ciel'
  • Potentilla 'Etna'
  • Potentilla 'Gibson's Scarlet'
  • Potentilla 'William Rollisson'
  • Pratia angulata 'Treadwellii'
  • Pratia pedunculata 'County Park'
  • Primula auricula Kaleidoscope (mixed) (Au)
  • Primula auricula 'Alice Haysom' (Au/S)
  • Primula auricula 'Bartl' (Au/A)
  • Primula auricula 'Black Jack' (PBR) (Au/d)
  • Primula auricula 'Fridl' (Au)
  • Primula auricula 'Louis' (Au/d)
  • Primula auricula 'Purple Pip' (Au/d)
  • Primula beesiana (Pf)
  • Primula bulleyana (Pf)
  • Primula chungensis (Pf)
  • Primula florindae (Si)
  • Primula japonica 'Apple Blossom' (Pf)
  • Primula japonica 'Miller's Crimson' (Pf)
  • Primula japonica 'Postford White' (Pf)
  • Primula prolifera (Pf)
  • Primula pulverulenta (Pf)
  • Primula secundiflora (Pf)
  • Primula veris (Pr)
  • Primula vialii (So)
  • Primula vulgaris 'Dunbeg' (Kennedy Irish Series) (Pr/Prim)
  • Primula vulgaris subsp. sibthorpii (Pr/Prim)
  • Primula Gold-laced Group (Pr/Poly)
  • Primula Gold-laced Group red-flowered (Pr/Poly)
  • Primula 'Hall Barn Blue' (Pr/Prim)
  • Primula 'Iris Mainwaring' (Pr/Prim)
  • Primula 'Lady Greer' (Pr/Poly)
  • Primula 'Tawny Port' (Pr/Poly)
  • Primula 'Theodora' (Pr)
  • Primula 'Wanda' (Pr/Prim)
  • Prostanthera cuneata
  • Prostanthera ovalifolia 'Variegata' (v)
  • Prostanthera 'Poorinda Ballerina'
  • Prostanthera 'Poorinda Petite'
  • Prunella grandiflora 'Alba'
  • Prunella grandiflora 'Loveliness'
  • Prunus armeniaca 'Bergeval' (F)
  • Prunus armeniaca 'Moorpark' (F)
  • Prunus armeniaca 'Robada' (PBR) (F)
  • Prunus armeniaca 'Tomcot' (F)
  • Prunus avium 'Merchant' (F)
  • Prunus avium 'Merton Glory' (F)
  • Prunus avium 'Plena' (d)
  • Prunus avium 'Stella' (F)
  • Prunus avium 'Sunburst' (D)
  • Prunus cerasifera 'Nigra'
  • Prunus cerasus 'Morello' (C)
  • Prunus domestica 'Czar' (C)
  • Prunus domestica 'Kirke's' (D)
  • Prunus domestica 'Opal' (D)
  • Prunus domestica 'Oullins Gage' (C/D)
  • Prunus domestica Reine-Claude Group (D)
  • Prunus domestica 'Victoria' (D)
  • Prunus incisa f. yamadei
  • Prunus incisa 'Kojo-no-mai'
  • Prunus incisa 'Mikinori'
  • Prunus incisa 'Pendula'
  • Prunus insititia 'Merryweather Damson' (C)
  • Prunus laurocerasus
  • Prunus laurocerasus 'Otto Luyken'
  • Prunus laurocerasus 'Rotundifolia'
  • Prunus lusitanica
  • Prunus lusitanica 'Variegata' (v)
  • Prunus padus 'Colorata'
  • Prunus padus 'Watereri'
  • Prunus pendula 'Pendula Rubra'
  • Prunus persica 'Crimson Cascade' (F)
  • Prunus persica 'Peregrine' (F)
  • Prunus persica 'Rochester' (F)
  • Prunus sargentii
  • Prunus serrula
  • Prunus tenella 'Fire Hill'
  • Prunus virginiana 'Schubert'
  • Prunus × cistena
  • Prunus × persicoides 'Robijn' (F)
  • Prunus × subhirtella 'Autumnalis'
  • Prunus × subhirtella 'Autumnalis Rosea'
  • Prunus × yedoensis
  • Prunus Aprisali (aprium)
  • Prunus Frilly Frock = 'Fpmspl' (v)
  • Prunus 'Accolade' (d)
  • Prunus 'Amanogawa'
  • Prunus 'Collingwood Ingram'
  • Prunus 'Kanzan' (d)
  • Prunus 'Kiku-shidare-zakura'
  • Prunus 'Pink Perfection'
  • Prunus 'Royal Burgundy' (d)
  • Prunus 'Shirotae'
  • Prunus 'Shogetsu'
  • Prunus 'Snow Goose'
  • Prunus 'Snow Showers'
  • Prunus 'Sunset Boulevard'
  • Prunus 'Tai-haku'
  • Prunus 'Ukon'
  • Psammophiliella muralis 'Gypsy Deep Rose'
  • Ptelea trifoliata
  • Ptelea trifoliata 'Aurea'
  • Pulmonaria angustifolia 'Azurea'
  • Pulmonaria longifolia
  • Pulmonaria rubra
  • Pulmonaria rubra 'David Ward' (v)
  • Pulmonaria Opal = 'Ocupol'
  • Pulmonaria 'Blue Ensign'
  • Pulmonaria 'Majesté'
  • Pulmonaria 'Sissinghurst White'
  • Pulsatilla rubra
  • Pulsatilla vulgaris
  • Pulsatilla vulgaris 'Alba'
  • Punica granatum
  • Pyracantha coccinea 'Red Column'
  • Pyracantha coccinea 'Red Cushion'
  • Pyracantha Saphyr Rouge = 'Cadrou'
  • Pyracantha 'Mohave'
  • Pyracantha 'Orange Charmer'
  • Pyracantha 'Soleil d'Or'
  • Pyracantha 'Sparkler' (v)
  • Pyracantha 'Teton'
  • Pyrus calleryana 'Chanticleer'
  • Pyrus communis 'Beurré Hardy' (D)
  • Pyrus communis 'Concorde' (D)
  • Pyrus communis 'Conference' (D)
  • Pyrus communis 'Doyenné du Comice' (D)
  • Pyrus communis 'Obelisk' (D)
  • Pyrus communis 'Onward' (D)
  • Pyrus salicifolia 'Pendula'
  • Quercus cerris 'Argenteovariegata' (v)
  • Quercus coccinea 'Splendens'
  • Quercus ilex
  • Quercus myrsinifolia
  • Quercus palustris
  • Quercus robur
  • Quercus robur 'Concordia'
  • Quercus rubra
  • Quercus suber
  • Quercus × turneri 'Pseudoturneri'
  • Quercus × warei 'Long'
  • Ranunculus aconitifolius 'Flore Pleno' (d)
  • Ranunculus acris 'Flore Pleno' (d)
  • Ratibida columnifera f. pulcherrima 'Red Midget'
  • Ratibida mexicana
  • Rehmannia elata
  • Reineckea carnea
  • Rhamnus alaternus 'Argenteovariegata' (v)
  • Rhamnus cathartica
  • Rhaphiolepis umbellata
  • Rhaphiolepis × delacourii Enchantress = 'Moness'
  • Rhaphiolepis × delacourii 'Coates' Crimson'
  • Rheum palmatum
  • Rheum palmatum 'Atrosanguineum'
  • Rheum palmatum var. tanguticum
  • Rheum × hybridum 'Red Champagne'
  • Rheum × hybridum 'Timperley Early'
  • Rheum × hybridum 'Victoria'
  • Rheum 'Ace of Hearts'
  • Rhodanthemum hosmariense
  • Rhodanthemum 'African Eyes'
  • Rhodiola rosea
  • Rhododendron 'Cunningham's White'
  • Rhododendron 'Daviesii' (G)
  • Rhododendron 'Dopey'
  • Rhododendron 'Fantastica'
  • Rhododendron 'Frilly Lemon' (Ad)
  • Rhododendron 'Golden Torch'
  • Rhododendron 'Gomer Waterer'
  • Rhododendron 'Horizon Monarch'
  • Rhododendron 'Irene Koster' (O)
  • Rhododendron 'Jolie Madame' (Vs)
  • Rhododendron 'Lord Roberts'
  • Rhododendron 'Madame Masson'
  • Rhododendron 'Markeeta's Prize'
  • Rhododendron 'Persil' (K)
  • Rhododendron 'Scintillation'
  • Rhododendron 'Snowbird' (A)
  • Rhododendron 'Strawberry Ice' (K)
  • Rhodotypos scandens
  • Rhus typhina
  • Rhus typhina Tiger Eyes = 'Bailtiger' (PBR)
  • Rhus typhina 'Dissecta'
  • Ribes laurifolium
  • Ribes nigrum 'Boskoop Giant' (B)
  • Ribes odoratum
  • Ribes rubrum 'Red Lake' (R)
  • Ribes rubrum 'White Pearl' (W)
  • Ribes sanguineum White Icicle = 'Ubric'
  • Ribes sanguineum 'King Edward VII'
  • Ribes sanguineum 'Pulborough Scarlet'
  • Ribes speciosum
  • Ribes uva-crispa 'Early Sulphur' (D)
  • Ribes uva-crispa 'Rokula' (C/D)
  • Ribes uva-crispa 'Whinham's Industry' (C/D)
  • Robinia pseudoacacia
  • Robinia pseudoacacia 'Bessoniana'
  • Robinia pseudoacacia 'Frisia'
  • Robinia pseudoacacia 'Lace Lady' (PBR)
  • Robinia × margaretta 'Pink Cascade'
  • Robinia × slavinii 'Hillieri'
  • Rodgersia aesculifolia
  • Rodgersia pinnata
  • Rodgersia pinnata 'Chocolate Wing'
  • Rodgersia 'Bronze Peacock'
  • Romneya coulteri
  • Rosa banksiae 'Lutea' (Ra/d)
  • Rosa banksiae 'Rosea' (Ra)
  • Rosa banksiae var. banksiae (Ra/d)
  • Rosa filipes 'Kiftsgate' (Ra)
  • Rosa glauca Pourr. (S)
  • Rosa moyesii (S)
  • Rosa rugosa 'Alba' (Ru)
  • Rosa rugosa 'Rubra' (Ru)
  • Rosa sericea subsp. omeiensis f. pteracantha (S)
  • Rosa spinosissima
  • Rosa xanthina 'Canary Bird' (S)
  • Rosa xanthina f. hugonis
  • Rosa × odorata (Sanguinea Group) 'Bengal Crimson' (Ch)
  • Rosa × odorata 'Mutabilis' (Ch)
  • Rosa Amber Queen = 'Harroony' (F)
  • Rosa Blue for You = 'Pejamblu' (PBR) (F)
  • Rosa Blue Moon = 'Tannacht' (HT)
  • Rosa Bonica = 'Meidomonac' (GC)
  • Rosa Burgundy Ice = 'Prose' (PBR) (F)
  • Rosa Champagne Moment = 'Korvanaber' (PBR) (F)
  • Rosa Charlotte = 'Auspoly' (PBR) (S)
  • Rosa Crème de la Crème = 'Gancre' (PBR) (ClHT)
  • Rosa Crimson Cascade = 'Fryclimbdown' (ClHT)
  • Rosa Crown Princess Margareta = 'Auswinter' (PBR) (Cl)
  • Rosa Darcey Bussell = 'Ausdecorum' (PBR) (S)
  • Rosa Diamond Jubilee = 'Tan022260' (HT)
  • Rosa Double Delight = 'Andeli' (HT)
  • Rosa Dublin Bay = 'Macdub' (ClF)
  • Rosa Duchess of Cornwall = 'Tan97159' (PBR) (HT)
  • Rosa Easy Does It = 'Harpageant' (PBR) (F)
  • Rosa Edward's Rose = 'Smi73/7/97' (F)
  • Rosa Eglantyne = 'Ausmak' (PBR) (S)
  • Rosa Eye of the Tiger = 'Chewbullseye' (PBR) (persica hybrid) (S)
  • Rosa Flower Carpet Red Velvet = 'Noare' (PBR) (GC/S)
  • Rosa Flower Carpet Sunshine = 'Noason' (PBR) (GC)
  • Rosa Flower Carpet White = 'Noaschnee' (GC)
  • Rosa For Your Eyes Only = 'Cheweyesup' (PBR) (S)
  • Rosa Fragrant Cloud = 'Tanellis' (HT)
  • Rosa Friend for Life = 'Cocnanne' (PBR) (F)
  • Rosa Gentle Hermione = 'Ausrumba' (PBR) (S)
  • Rosa Gertrude Jekyll = 'Ausbord' (PBR) (S)
  • Rosa Golden Wedding = 'Arokris' (F)
  • Rosa Händel = 'Macha' (ClHT)
  • Rosa Happy Retirement = 'Tantoras' (PBR) (F)
  • Rosa Happy Ruby Wedding = 'Frynoble' (PBR) (HT)
  • Rosa Hot Chocolate = 'Wekpaltlez' (F)
  • Rosa Iceberg = 'Korbin' (F)
  • Rosa Isn't She Lovely = 'Diciluvit' (PBR) (HT)
  • Rosa Joie de Vivre = 'Korfloci 01' (PBR) (Patio/S)
  • Rosa Kent = 'Poulcov' (Towne & Country Series) (S/GC)
  • Rosa Lady of Shalott = 'Ausnyson' (PBR) (S)
  • Rosa Laura Ford = 'Chewarvel' (ClMin)
  • Rosa Little Rambler = 'Chewramb' (PBR) (MinRa)
  • Rosa Love & Peace = 'Baipeace' (PBR) (HT)
  • Rosa Love Knot = 'Chewglorious' (PBR) (ClMin)
  • Rosa Lovely Lady = 'Dicjubell' (PBR) (HT)
  • Rosa Margaret Merril = 'Harkuly' (F)
  • Rosa Marjorie Fair = 'Harhero' (Poly/S)
  • Rosa Mary Rose = 'Ausmary' (S)
  • Rosa Millie = 'Poulren013' (PBR) (Renaissance Series) (S)
  • Rosa Mountbatten = 'Harmantelle' (F)
  • Rosa Olivia Rose Austin = 'Ausmixture' (PBR) (S)
  • Rosa Peace = 'Madame A. Meilland' (HT)
  • Rosa Penny Lane = 'Hardwell' (PBR) (ClHT)
  • Rosa Perennial Blush = 'Mehbarbie' (PBR) (Ra)
  • Rosa Pretty in Pink = 'Dicumpteen' (PBR) (GC)
  • Rosa Princess Alexandra of Kent = 'Ausmerchant' (PBR) (S)
  • Rosa Queen Mother = 'Korquemu' (Patio)
  • Rosa Red Perfumella = 'Meikeneza' (PBR) (HT)
  • Rosa Remember Me = 'Cocdestin' (HT)
  • Rosa Rhapsody in Blue = 'Frantasia' (PBR) (S)
  • Rosa Roald Dahl = 'Ausowlish' (PBR) (S)
  • Rosa Royal William = 'Korzaun' (HT)
  • Rosa Ruby Anniversary = 'Harbonny' (PBR) (Patio)
  • Rosa Ruby Celebration = 'Peawinner' (PBR) (F)
  • Rosa Scent from Heaven = 'Chewbabaluv' (ClHT)
  • Rosa Scentimental = 'Wekplapep' (PBR) (F)
  • Rosa Sheila's Perfume = 'Harsherry' (F)
  • Rosa Silver Anniversary = 'Poulari' (HT)
  • Rosa Simply the Best = 'Macamster' (PBR) (HT)
  • Rosa Soleil Vertical = 'Delsov' (Cl)
  • Rosa Special Anniversary = 'Whastiluc' (PBR) (HT)
  • Rosa Special Child = 'Taniripsa' (PBR) (F/Patio)
  • Rosa Starlight Symphony = 'Harwisdom' (ClS)
  • Rosa Summertime = 'Chewlarmoll' (PBR) (ClPatio)
  • Rosa Super Excelsa = 'Helexa' (Ra)
  • Rosa Super Trouper = 'Fryleyeca' (PBR) (F)
  • Rosa Swan Lake = 'Macmed' (Cl)
  • Rosa Sweet Memories = 'Whamemo' (Patio)
  • Rosa Sweet Parfum de Provence = 'Meiclusif' (PBR) (HT)
  • Rosa Tequila Sunrise = 'Dicobey' (HT)
  • Rosa The Diamond Wedding Rose = 'Meidiaphaz' (HT)
  • Rosa The Generous Gardener = 'Ausdrawn' (PBR) (Cl)
  • Rosa The Lady Gardener = 'Ausbrass' (PBR) (S)
  • Rosa Tottering-by-Gently = 'Auscartoon' (S)
  • Rosa Warm Welcome = 'Chewizz' (ClMin)
  • Rosa Whisky Mac = 'Tanky' (HT)
  • Rosa White Perfumella = 'Meicalanq' (PBR) (HT)
  • Rosa You're Beautiful = 'Fryracy' (PBR) (F)
  • Rosa 'Albertine' (Ra)
  • Rosa 'American Pillar' (Ra)
  • Rosa 'Arthur Bell' (F)
  • Rosa 'Ballerina' (HM/Poly)
  • Rosa 'Bantry Bay' (ClHT)
  • Rosa 'Blanche Double de Coubert' (Ru)
  • Rosa 'Cécile Brünner' (Poly)
  • Rosa 'Climbing Blue Moon' (ClHT)
  • Rosa 'Climbing Iceberg' (ClF)
  • Rosa 'Climbing Lady Hillingdon' (ClT)
  • Rosa 'Climbing Masquerade' (ClF)
  • Rosa 'Compassion' (ClHT)
  • Rosa 'Crimson Shower' (Ra)
  • Rosa 'Danse du Feu' (ClF)
  • Rosa 'Deep Secret' (HT)
  • Rosa 'Fantin-Latour' (Ce)
  • Rosa 'Frühlingsgold' (SpH)
  • Rosa 'Fragrant Delight' (F)
  • Rosa 'Francis E. Lester' (HM/Ra)
  • Rosa 'Gardeners' Glory' (PBR) (ClHT)
  • Rosa 'Geranium' (moyesii hybrid)
  • Rosa 'Golden Showers' (Cl)
  • Rosa 'Guinée' (ClHT)
  • Rosa 'Highdownensis' (moyesii hybrid) (S)
  • Rosa 'Just Joey' (HT)
  • Rosa 'Madame Alfred Carrière' (N)
  • Rosa 'Madame Grégoire Staechelin' (ClHT)
  • Rosa 'Maiden's Blush' (A)
  • Rosa 'Maigold' (ClPiH)
  • Rosa 'Masquerade' (F)
  • Rosa 'New Dawn' (Cl)
  • Rosa 'Nozomi' (ClMin/GC)
  • Rosa 'Penelope' (HM)
  • Rosa 'Phyllis Bide' (Ra)
  • Rosa 'Prosperity' (HM)
  • Rosa 'Rambling Rector' (Ra)
  • Rosa 'Roseraie de l'Hay' (Ru)
  • Rosa 'Ruby Wedding' (HT)
  • Rosa 'Schoolgirl' (ClHT)
  • Rosa 'Silver Wedding' (HT)
  • Rosa 'Souvenir du Docteur Jamain' (ClHP)
  • Rosa 'The Fairy' (Poly)
  • Rosa 'The Queen Elizabeth' (F)
  • Rosa 'Tuscany Superb' (G)
  • Rosa 'Veilchenblau' (Ra)
  • Rosa 'Wedding Day' (Ra)
  • Rosa 'White Pet' (Poly)
  • Rosa 'Zéphirine Drouhin' (Bb)
  • Roscoea purpurea
  • Roscoea purpurea 'Nico'
  • Rotheca myricoides 'Ugandense'
  • Rubus cockburnianus (F)
  • Rubus idaeus 'Autumn Bliss' (F)
  • Rubus idaeus 'Glen Ample' (PBR) (F)
  • Rubus idaeus 'Tulameen' (F)
  • Rubus odoratus
  • Rubus phoenicolasius
  • Rubus thibetanus
  • Rubus tricolor
  • Rubus 'Benenden'
  • 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 laciniata
  • Rudbeckia laciniata 'Goldquelle' (d)
  • Rudbeckia laciniata 'Herbstsonne'
  • Rudbeckia occidentalis 'Green Wizard'
  • Rudbeckia subtomentosa 'Henry Eilers'
  • Rumex sanguineus var. sanguineus
  • Ruscus aculeatus
  • Ruscus aculeatus hermaphrodite
  • Ruscus aculeatus 'John Redmond' (PBR) (f/m)
  • Ruta graveolens 'Jackman's Blue'
  • Sagina subulata var. glabrata 'Aurea'
  • Salix alba 'Tristis' ambig.
  • Salix alba var. vitellina 'Britzensis' (m)
  • Salix alba var. vitellina 'Nova'
  • Salix arbuscula
  • Salix babylonica 'Crispa'
  • Salix babylonica var. pekinensis 'Tortuosa' (f)
  • Salix caprea 'Kilmarnock' (m)
  • Salix elaeagnos subsp. angustifolia
  • Salix exigua
  • Salix fargesii
  • Salix gracilistyla 'Melanostachys' (m)
  • Salix hastata 'Wehrhahnii' (m)
  • Salix helvetica
  • Salix integra 'Flamingo' (PBR)
  • Salix integra 'Hakuro-nishiki' (v)
  • Salix lanata
  • Salix myrsinifolia
  • Salix nakamurana var. yezoalpina
  • Salix × sepulcralis 'Dart's Snake' (m)
  • Salix × sepulcralis 'Erythroflexuosa' (m)
  • Salix 'Boydii' (f)
  • Salvia argentea
  • Salvia chamaedryoides
  • Salvia elegans 'Scarlet Pineapple'
  • Salvia greggii 'Desert Blaze' (v)
  • Salvia greggii 'Flame'
  • Salvia greggii 'Icing Sugar' (PBR)
  • Salvia guaranitica 'Blue Enigma'
  • Salvia involucrata 'Bethellii'
  • Salvia lavandulifolia
  • Salvia leucantha
  • Salvia microphylla 'Cerro Potosí'
  • Salvia microphylla 'Pink Blush'
  • Salvia nemorosa Marcus = 'Haeumanarc' (PBR)
  • Salvia nemorosa 'Caradonna'
  • Salvia nemorosa 'Ostfriesland'
  • Salvia officinalis 'Icterina' (v)
  • Salvia officinalis 'Purpurascens'
  • Salvia officinalis 'Tricolor' (v)
  • Salvia patens 'Cambridge Blue'
  • Salvia pratensis 'Twilight Serenade' (Ballet Series)
  • Salvia rosmarinus (Albiflora Group) 'Lady in White' (Ro)
  • Salvia rosmarinus (Angustifolia Group) 'Benenden Blue' (Ro)
  • Salvia rosmarinus (Prostrata Group) 'Whitewater Silver' (Ro)
  • Salvia rosmarinus (Ro)
  • Salvia rosmarinus 'Green Ginger' (Ro)
  • Salvia rosmarinus 'Miss Jessopp's Upright' (Ro)
  • Salvia rosmarinus 'Rosea' (Ro)
  • Salvia rosmarinus 'Severn Sea' (Ro)
  • Salvia rosmarinus 'Sissinghurst Blue' (Ro)
  • Salvia uliginosa
  • Salvia uliginosa 'Ballon Azul'
  • Salvia verticillata 'Purple Rain'
  • Salvia × jamensis 'La Luna'
  • Salvia × jamensis 'Lemon Light'
  • Salvia × superba
  • Salvia × sylvestris 'Blauhügel'
  • Salvia × sylvestris 'Mainacht'
  • Salvia × sylvestris 'Rose Queen'
  • Salvia × sylvestris 'Schneehügel'
  • Salvia × sylvestris 'Viola Klose'
  • Salvia Amethyst Lips = 'Dyspurp'
  • Salvia Ember's Wish = 'Sal 0101' (PBR)
  • Salvia 'Amistad' (PBR)
  • Salvia 'Blue Note' (PBR)
  • Salvia 'Blue Spire' (Pe)
  • Salvia 'Dyson's Crimson'
  • Salvia 'Flamenco Rose' (Suncrest Series)
  • Salvia 'Hot Lips'
  • Salvia 'Lalarsha'
  • Salvia 'Little Spire' (PBR) (Pe)
  • Salvia 'Mulberry Jam'
  • Salvia 'Nachtvlinder'
  • Salvia 'Orchid Glow' (Suncrest Series)
  • Salvia 'Royal Bumble'
  • Salvia 'Wendy's Wish' (PBR)
  • Sambucus nigra 'Aureomarginata' (v)
  • Sambucus nigra f. laciniata
  • Sambucus nigra f. porphyrophylla Black Tower = 'Eiffel 1' (PBR)
  • Sambucus nigra f. porphyrophylla 'Eva' (PBR)
  • Sambucus nigra f. porphyrophylla 'Gerda' (PBR)
  • Sambucus racemosa 'Sutherland Gold'
  • Sanguisorba menziesii
  • Sanguisorba obtusa
  • Sanguisorba tenuifolia var. alba
  • Sanguisorba 'Tanna'
  • Santolina chamaecyparissus
  • Santolina chamaecyparissus 'Pretty Carroll'
  • Santolina pinnata subsp. neapolitana
  • Santolina rosmarinifolia 'Lemon Fizz'
  • Santolina rosmarinifolia subsp. rosmarinifolia
  • Saponaria ocymoides
  • Saponaria officinalis 'Rosea Plena' (d)
  • Sarcococca confusa
  • Sarcococca hookeriana var. digyna
  • Sarcococca hookeriana var. digyna 'Purple Stem'
  • Sarcococca hookeriana var. humilis
  • Sarcococca ruscifolia var. chinensis 'Dragon Gate'
  • Sassafras albidum
  • Satureja montana
  • Saururus cernuus
  • Saxifraga oppositifolia subsp. oppositifolia var. latina (7)
  • Saxifraga × urbium (11)
  • Saxifraga Black Ruby (fortunei) (5)
  • Saxifraga 'Alba' (oppositifolia) (7)
  • Saxifraga 'Aureopunctata' (× urbium) (11/v)
  • Saxifraga 'Cloth of Gold' (exarata subsp. moschata) (15)
  • Saxifraga 'Gelbes Monster' (fortunei) (5)
  • Saxifraga 'Shiranami' (fortunei) (5)
  • Saxifraga 'Silver Cushion' (15/v)
  • Saxifraga 'Whitehill' (8)
  • Scabiosa atropurpurea 'Chile Black'
  • Scabiosa Kudo White = 'Ichwit' (Kudo Series)
  • Scabiosa 'Barocca'
  • Scabiosa 'Butterfly Blue'
  • Scabiosa Kudo Series
  • Scabiosa 'Pink Diamonds'
  • Scabiosa 'Pink Mist'
  • Scabiosa 'Vivid Vi' (PBR)
  • Schisandra grandiflora
  • Schizophragma hydrangeoides
  • Schizophragma hydrangeoides var. concolor 'Moonlight'
  • Schizophragma hydrangeoides var. hydrangeoides 'Roseum'
  • Schizophragma integrifolium
  • Schoenoplectus lacustris subsp. tabernaemontani 'Zebrinus' (v)
  • Scilla siberica
  • Scilla 'Blue Giant'
  • Scilla 'Pink Giant'
  • Sedum acre 'Aureum'
  • Sedum album 'Coral Carpet'
  • Sedum kamtschaticum var. floriferum 'Weihenstephaner Gold'
  • Sedum kamtschaticum var. kamtschaticum 'Variegatum' (v)
  • Sedum rupestre L.
  • Sedum spathulifolium 'Cape Blanco'
  • Sedum spathulifolium 'Purpureum'
  • Sedum spurium 'Schorbuser Blut'
  • Selaginella kraussiana 'Aurea'
  • Selaginella kraussiana 'Gold Tips'
  • Selinum carvifolium
  • Selinum cryptotaenium
  • Selinum wallichianum
  • Sempervivum arachnoideum
  • Sempervivum tectorum
  • Sempervivum tectorum 'Atropurpureum'
  • Sempervivum 'Jubilee'
  • Sempervivum 'Remus'
  • Senecio candidans Angel Wings = 'Senaw' (PBR)
  • Senecio smithii
  • Sequoiadendron giganteum
  • Sequoiadendron giganteum 'Pendulum'
  • Serratula tinctoria var. seoanei
  • Seseli elatum subsp. osseum
  • Seseli gummiferum
  • Seseli hippomarathrum
  • Sesleria caerulea
  • Sidalcea candida
  • Sidalcea candida 'Bianca'
  • Sidalcea 'Croftway Red'
  • Sidalcea 'Elsie Heugh'
  • Sidalcea 'Loveliness'
  • Sidalcea 'Party Girl'
  • Sidalcea 'Rosaly'
  • Silene acaulis 'Mount Snowdon'
  • Silene fimbriata
  • Silene uniflora 'Druett's Variegated' (v)
  • Silybum marianum
  • Sinopodophyllum hexandrum
  • Sisyrinchium idahoense var. macounii
  • Sisyrinchium striatum
  • Sisyrinchium 'E.K. Balls'
  • Sisyrinchium 'Sapphire'
  • Skimmia japonica 'Kew White' (f)
  • Skimmia japonica 'Nymans' (f)
  • Skimmia japonica 'Pabella' (PBR) (f)
  • Skimmia japonica subsp. reevesiana
  • Skimmia japonica 'Temptation' (PBR) (f)
  • Skimmia × confusa 'Kew Green' (m)
  • Smyrnium perfoliatum
  • Solanum crispum 'Glasnevin'
  • Solanum laxum 'Album'
  • Soldanella 'Spring Symphony'
  • Soleirolia soleirolii
  • Soleirolia soleirolii 'Aurea'
  • Soleirolia soleirolii 'Variegata' (v)
  • Solidago sphacelata 'Golden Fleece'
  • Solidago 'Crown of Rays'
  • Solidago 'Goldkind'
  • Solidago 'Yellow Stone'
  • Sollya heterophylla
  • Sollya heterophylla 'Alba'
  • Sollya heterophylla 'Pink Charmer'
  • Sophora molloyi 'Dragon's Gold'
  • Sophora Sun King = 'Hilsop' (PBR)
  • Sophora 'Little Baby'
  • Sorbaria sorbifolia
  • Sorbaria sorbifolia 'Sem' (PBR)
  • Sorbaria tomentosa var. angustifolia
  • Sorbus aria 'Lutescens'
  • Sorbus aria 'Magnifica'
  • Sorbus aucuparia
  • Sorbus aucuparia 'Sheerwater Seedling'
  • Sorbus cashmiriana Hedl.
  • Sorbus frutescens
  • Sorbus rosea
  • Sorbus sargentiana
  • Sorbus scalaris ambig.
  • Sorbus torminalis
  • Sorbus ulleungensis 'Olympic Flame'
  • Sorbus vilmorinii
  • Sorbus Autumn Spire = 'Flanrock'
  • Sorbus 'Chinese Lace'
  • Sorbus 'Joseph Rock'
  • Sorbus 'Matthew Ridley'
  • Sparrmannia africana
  • Spartina pectinata 'Aureomarginata' (v)
  • Spartium junceum
  • Sphaeralcea munroana
  • Spiraea betulifolia 'Tor Gold' (PBR)
  • Spiraea japonica Golden Princess = 'Lisp'
  • Spiraea japonica 'Albiflora'
  • Spiraea japonica 'Anthony Waterer' (v)
  • Spiraea japonica 'Candlelight'
  • Spiraea japonica 'Firelight'
  • Spiraea japonica 'Gold Mound'
  • Spiraea japonica 'Goldflame'
  • Spiraea japonica 'Little Princess'
  • Spiraea japonica 'White Gold' (PBR)
  • Spiraea nipponica 'Snowmound'
  • Spiraea × cinerea 'Grefsheim'
  • Spiraea × vanhouttei
  • Spiraea × vanhouttei 'Gold Fountain'
  • Spiraea 'Arguta'
  • Stachys byzantina
  • Stachys byzantina 'Big Ears'
  • Stachys byzantina 'Silky Fleece'
  • Staphylea colchica
  • Stephanandra incisa 'Crispa'
  • Stephanandra tanakae
  • Sternbergia lutea
  • Stipa calamagrostis
  • Stipa gigantea
  • Stipa pseudoichu
  • Stipa tenuissima
  • Stokesia laevis 'Alba'
  • Stokesia laevis 'Blue Star'
  • Stokesia laevis 'Mary Gregory'
  • Strelitzia reginae
  • Symphoricarpos albus
  • Symphoricarpos × chenaultii 'Hancock'
  • Symphyotrichum ericoides 'Golden Spray'
  • Symphyotrichum ericoides 'Pink Cloud'
  • Symphyotrichum laeve 'Climax'
  • Symphyotrichum lateriflorum 'Lady in Black'
  • Symphyotrichum lateriflorum 'Prince'
  • Symphyotrichum lateriflorum var. horizontale
  • Symphyotrichum novae-angliae 'Andenken an Alma Pötschke'
  • Symphyotrichum novae-angliae 'Barr's Blue'
  • Symphyotrichum novae-angliae 'Barr's Pink'
  • Symphyotrichum novae-angliae 'Harrington's Pink'
  • Symphyotrichum novae-angliae 'Herbstschnee'
  • Symphyotrichum novae-angliae 'Purple Dome'
  • Symphyotrichum novae-angliae 'Septemberrubin'
  • Symphyotrichum novi-belgii 'Alice Haslam'
  • Symphyotrichum novi-belgii 'Chatterbox'
  • Symphyotrichum novi-belgii 'Crimson Brocade'
  • Symphyotrichum novi-belgii 'Dandy'
  • Symphyotrichum novi-belgii 'Jenny'
  • Symphyotrichum novi-belgii 'Lady in Blue'
  • Symphyotrichum novi-belgii 'Little Pink Beauty'
  • Symphyotrichum novi-belgii 'Patricia Ballard' (d)
  • Symphyotrichum novi-belgii 'Professor Anton Kippenberg'
  • Symphyotrichum novi-belgii 'Purple Dome'
  • Symphyotrichum novi-belgii 'Schneekissen'
  • Symphyotrichum novi-belgii 'Snowsprite'
  • Symphyotrichum novi-belgii 'Winston S. Churchill'
  • Symphyotrichum 'Coombe Fishacre'
  • Symphyotrichum 'Little Carlow' (cordifolium hybrid)
  • Symphytum 'Goldsmith' (v)
  • Symphytum 'Rubrum'
  • Syringa emodi 'Elegantissima' (v)
  • Syringa pinnatifolia
  • Syringa pubescens subsp. microphylla 'Superba'
  • Syringa pubescens subsp. patula 'Miss Kim'
  • Syringa vulgaris 'Andenken an Ludwig Späth'
  • Syringa vulgaris 'Belle de Nancy' (d)
  • Syringa vulgaris 'Charles Joly' (d)
  • Syringa vulgaris 'Katherine Havemeyer' (d)
  • Syringa vulgaris 'Madame Lemoine' (d)
  • Syringa vulgaris 'Primrose'
  • Syringa vulgaris 'Prince Wolkonsky' (d)
  • Syringa × josiflexa 'Bellicent'
  • Syringa × laciniata Mill.
  • Syringa × prestoniae 'Elinor'
  • Syringa Josée = 'Morjos 060f'
  • Tamarix ramosissima 'Pink Cascade'
  • Tamarix tetrandra
  • Tanacetum coccineum Robinson's pink-flowered
  • Tanacetum coccineum Robinson's red-flowered
  • Tanacetum niveum 'Jackpot'
  • Tanacetum parthenium 'Aureum'
  • Tasmannia lanceolata
  • Taxodium distichum
  • Taxus baccata
  • Taxus baccata Aurea Group
  • Taxus baccata 'Corleys Coppertip'
  • Taxus baccata 'Fastigiata' (f)
  • Taxus baccata 'Fastigiata Robusta' (f)
  • Taxus baccata 'Standishii' (f)
  • Taxus baccata 'Summergold' (v)
  • Tellima grandiflora
  • Tellima grandiflora 'Forest Frost'
  • Tellima grandiflora Rubra Group
  • Tetradium daniellii
  • Tetrapanax papyrifer
  • Teucrium chamaedrys f. albiflora
  • Teucrium chamaedrys L.
  • Teucrium fruticans
  • Teucrium fruticans 'Azureum'
  • Teucrium fruticans 'Compactum'
  • Teucrium hircanicum
  • Teucrium hircanicum 'Purple Tails'
  • Teucrium × lucidrys
  • Thalictrum aquilegiifolium
  • Thalictrum delavayi
  • Thalictrum delavayi 'Hewitt's Double' (d)
  • Thalictrum flavum subsp. glaucum
  • Thalictrum Nimbus Pink = 'Tntnp' (Nimbus Series)
  • Thalictrum Nimbus White = 'Tntnw' (Nimbus Series)
  • Thalictrum Splendide White = 'Fr21034' (PBR)
  • Thalictrum 'Black Stockings'
  • Thalictrum 'Elin'
  • Thalictrum 'Splendide'
  • Thermopsis chinensis
  • Thermopsis montana var. montana
  • Thuja occidentalis 'Degroot's Spire'
  • Thuja occidentalis 'Golden Tuffet'
  • Thuja occidentalis 'Rheingold'
  • Thuja occidentalis 'Smaragd'
  • Thuja plicata
  • Thuja plicata 'Atrovirens'
  • Thuja plicata 'Gelderland'
  • Thuja plicata 'Whipcord'
  • Thuja plicata 'Zebrina' (v)
  • Thujopsis dolabrata 'Variegata' (v)
  • Thymus Coccineus Group
  • Thymus 'Doone Valley' (v)
  • Thymus 'Golden King' (v)
  • Thymus 'Silver Posie'
  • Thymus 'Silver Queen' (v)
  • Tiarella cordifolia
  • Tiarella wherryi
  • Tiarella 'Pink Bouquet'
  • Tiarella 'Pink Skyrocket' (PBR)
  • Tiarella 'Spring Symphony' (PBR)
  • Tilia cordata
  • Tilia cordata 'Winter Orange'
  • Tilia tomentosa 'Petiolaris'
  • Toona sinensis
  • Toona sinensis 'Flamingo' (v)
  • Trachelospermum asiaticum
  • Trachelospermum asiaticum 'Golden Memories'
  • Trachelospermum asiaticum 'Summer Sunset'
  • Trachelospermum jasminoides
  • Trachelospermum jasminoides 'Major'
  • Trachelospermum jasminoides 'Variegatum' (v)
  • Trachelospermum jasminoides 'Waterwheel'
  • Trachelospermum jasminoides 'Wilsonii'
  • Trachelospermum 'Chameleon'
  • Tradescantia (Andersoniana Group) 'Charlotte'
  • Tradescantia (Andersoniana Group) 'Concord Grape'
  • Tradescantia (Andersoniana Group) 'Innocence'
  • Tradescantia (Andersoniana Group) 'Isis'
  • Tradescantia (Andersoniana Group) 'Osprey'
  • Tradescantia (Andersoniana Group) 'Zwanenburg Blue'
  • Tricyrtis formosana
  • Tricyrtis formosana 'Dark Beauty'
  • Tricyrtis formosana 'Gilt Edge' (v)
  • Tricyrtis formosana Stolonifera Group
  • Tricyrtis hirta 'Taiwan Atrianne'
  • Tricyrtis Hototogisu
  • Tricyrtis 'White Towers'
  • Trifolium rubens
  • Trollius altaicus
  • Trollius chinensis 'Golden Queen'
  • Trollius chinensis 'Morning Sun'
  • Trollius europaeus
  • Trollius europaeus 'Lemon Supreme'
  • Trollius × cultorum 'Taleggio'
  • Tropaeolum speciosum
  • Tulbaghia violacea
  • Tulbaghia violacea 'Silver Lace' (v)
  • Tulbaghia 'Fairy Star'
  • Tulbaghia 'Purple Eye'
  • Ugni molinae
  • Ugni molinae 'Flambeau' (v)
  • Ulex europaeus
  • Ulex europaeus 'Flore Pleno' (d)
  • Ulmus glabra 'Camperdownii'
  • Ulmus parvifolia 'Geisha' (v)
  • Ulmus pumila 'Beijing Gold'
  • Ulmus × hollandica 'Jacqueline Hillier'
  • Umbilicus oppositifolius
  • Uncinia rubra
  • Uncinia rubra 'Belinda's Find' (PBR)
  • Uvularia grandiflora
  • Vaccinium corymbosum 'Blauweiss-Goldtraube' (F)
  • Vaccinium corymbosum 'Bluetta' (F)
  • Vaccinium corymbosum 'Duke' (F)
  • Vaccinium corymbosum 'Patriot' (F)
  • Vaccinium 'Bluejay' (F)
  • Vaccinium 'Pink Lemonade' (F)
  • Vaccinium 'Sunshine Blue' (F)
  • Verbascum bombyciferum
  • Verbascum chaixii 'Wedding Candles'
  • Verbascum olympicum
  • Verbascum phoeniceum
  • Verbascum 'Caribbean Crush'
  • Verbena bonariensis
  • Verbena bonariensis 'Lollipop' (PBR)
  • Verbena hastata f. rosea
  • Verbena officinalis var. grandiflora 'Bampton'
  • Verbena rigida
  • Verbena rigida f. lilacina 'Polaris'
  • Veronica austriaca subsp. teucrium 'Crater Lake Blue'
  • Veronica gentianoides
  • Veronica gentianoides 'Tissington White'
  • Veronica gentianoides 'Variegata' (v)
  • Veronica longifolia 'Alba'
  • Veronica longifolia 'Blaubündel'
  • Veronica longifolia 'Blauriesin'
  • Veronica longifolia 'Pink Eveline' (PBR)
  • Veronica spicata
  • Veronica spicata 'Glory' (PBR)
  • Veronica spicata 'Heidekind'
  • Veronica spicata 'Pink Goblin'
  • Veronica spicata 'Rotfuchs'
  • Veronica spicata 'Total Eclipse' (PBR)
  • Veronica × media First Glory = 'Alllord' (PBR)
  • Veronica × media First Kiss = 'Allkiss' (PBR)
  • Veronica × media First Lady = 'Alllady' (PBR)
  • Veronica × media First Love = 'Alllove' (PBR)
  • Veronica × media First Memory = 'Allv1461' (PBR)
  • Veronica Dark Blue Moody Blues = 'Novaverblu'
  • Veronica Mauve Moody Blues = 'Novavermau' (Moody Blues Series)
  • Veronica Pink Moody Blues = 'Novaverpin' (Moody Blues Series)
  • Veronica 'Pink Damask'
  • Veronica 'Shirley Blue'
  • Veronicastrum virginicum 'Album'
  • Veronicastrum virginicum 'Erica'
  • Veronicastrum virginicum f. roseum
  • Veronicastrum virginicum f. roseum 'Pink Glow'
  • Veronicastrum virginicum 'Fascination'
  • Veronicastrum virginicum 'Lavendelturm'
  • Vesalea floribunda
  • Viburnum betulifolium
  • Viburnum carlesii 'Aurora'
  • Viburnum cinnamomifolium
  • Viburnum davidii
  • Viburnum davidii (f)
  • Viburnum davidii (m)
  • Viburnum dentatum Blue Muffin = 'Christom'
  • Viburnum farreri
  • Viburnum farreri 'Candidissimum'
  • Viburnum lantana
  • Viburnum lantana 'Variegatum' (v)
  • Viburnum opulus
  • Viburnum opulus 'Aureum'
  • Viburnum opulus 'Compactum'
  • Viburnum opulus 'Roseum'
  • Viburnum opulus 'Xanthocarpum'
  • Viburnum plicatum f. plicatum 'Mary Milton'
  • Viburnum plicatum f. plicatum 'Popcorn'
  • Viburnum plicatum f. tomentosum Kilimanjaro = 'Jww1' (PBR)
  • Viburnum plicatum f. tomentosum 'Cascade'
  • Viburnum plicatum f. tomentosum 'Lanarth'
  • Viburnum plicatum f. tomentosum 'Mariesii'
  • Viburnum plicatum f. tomentosum 'Pink Beauty'
  • Viburnum plicatum f. tomentosum 'Summer Snowflake'
  • Viburnum sargentii 'Onondaga'
  • Viburnum tinus Spirit = 'Anvi' (PBR)
  • Viburnum tinus 'Eve Price'
  • Viburnum tinus 'French White'
  • Viburnum tinus 'Gwenllian'
  • Viburnum tinus 'Variegatum' (v)
  • Viburnum × bodnantense 'Charles Lamont'
  • Viburnum × bodnantense 'Dawn'
  • Viburnum × burkwoodii
  • Viburnum × burkwoodii 'Anne Russell'
  • Viburnum × burkwoodii 'Park Farm Hybrid'
  • Viburnum × carlcephalum
  • Viburnum × juddii
  • Viburnum × rhytidophylloides 'Willowwood'
  • Viburnum 'Eskimo'
  • Vinca major
  • Vinca major var. oxyloba
  • Vinca major 'Variegata' (v)
  • Vinca major 'Wojo's Jem' (v)
  • Vinca minor
  • Vinca minor 'Argenteovariegata' (v)
  • Vinca minor 'Atropurpurea'
  • Vinca minor 'Aureovariegata' (v)
  • Vinca minor 'Bowles's Variety'
  • Vinca minor f. alba 'Gertrude Jekyll'
  • Vinca minor 'Illumination' (v)
  • Vinca minor 'Ralph Shugert' (v)
  • Viola cornuta Alba Group (C)
  • Viola odorata 'Alba' (Vt)
  • Viola 'Etain' (Va)
  • Viola 'Irish Molly' (Va)
  • Viola 'Jackanapes' (Va)
  • Viola 'Molly Sanderson' (Va)
  • Viola 'Moonlight' (Va)
  • Viola 'Mrs Lancaster' (Va)
  • Viola 'Rebecca' (Vtta)
  • Vitex agnus-castus f. alba 'Silver Spire'
  • Vitex agnus-castus f. latifolia
  • Vitis coignetiae
  • Vitis vinifera 'Lakemont' (O/W/S)
  • Vitis vinifera 'Purpurea' (O/B)
  • Vitis Claret Cloak = 'Frovit'
  • Vitis 'Boskoop Glory' (O/B)
  • Vitis 'Brant' (O/B)
  • Vitis 'Fragola' (O/R)
  • Vitis 'Himrod' (O/W/S)
  • Waldsteinia ternata
  • Weigela florida Moulin Rouge = 'Brigela' (PBR)
  • Weigela florida 'Alexandra' (PBR)
  • Weigela florida 'Bicolor'
  • Weigela florida 'Foliis Purpureis'
  • Weigela middendorffiana
  • Weigela Black and White = 'Courtacad1' (PBR)
  • Weigela Pink Poppet = 'Plangen' (PBR)
  • Weigela 'Bristol Ruby'
  • Weigela 'Candida'
  • Weigela 'Florida Variegata' (v)
  • Wisteria brachybotrys f. albiflora 'Shiro-kapitan'
  • Wisteria floribunda f. alba 'Shiro-noda'
  • Wisteria floribunda f. multijuga
  • Wisteria floribunda f. rosea 'Hon-beni'
  • Wisteria floribunda 'Kuchi-beni'
  • Wisteria floribunda 'Yae-kokuryu' (d)
  • Wisteria frutescens 'Amethyst Falls' (PBR)
  • Wisteria sinensis 'Prolific'
  • Wisteria sinensis var. sinensis f. alba
  • Wollemia nobilis
  • Xanthocyparis nootkatensis 'Pendula'
  • Yucca filamentosa
  • Yucca filamentosa 'Bright Edge' (v)
  • Yucca filamentosa 'Color Guard' (v)
  • Yucca flaccida 'Golden Sword' (v)
  • Yucca gloriosa 'Variegata' (v)
  • Yucca whipplei
  • Zaluzianskya ovata 'Orange Eye'
  • Zantedeschia aethiopica 'Crowborough'
  • Zantedeschia aethiopica 'Green Goddess'
  • Zantedeschia 'Kiwi Blush'
  • Zanthoxylum americanum
  • Zanthoxylum piperitum
  • Zelkova serrata
  • Zelkova serrata 'Kiwi Sunset' (PBR)
  • Zenobia pulverulenta
  • Zenobia pulverulenta 'Misty Blue'
  • Zenobia pulverulenta 'Raspberry Ripple'
  • Zingiber mioga

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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.