• 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

Rumsey Gardens

  • × Alworthia 'Black Gem'
  • × Fatshedera lizei
  • × Halimiocistus sahucii
  • × Halimiocistus wintonensis
  • × Halimiocistus 'Ingwersenii'
  • × Heucherella alba 'Bridget Bloom'
  • × Heucherella tiarelloides
  • × Heucherella 'Brass Lantern' (PBR)
  • × Heucherella 'Sunspot' (PBR) (v)
  • × Heucherella 'Tapestry' (PBR)
  • × Mahoberberis miethkeana
  • Abelia chinensis R. Br.
  • Abelia parvifolia 'Bumblebee'
  • Abelia × grandiflora Sunshine Daydream = 'Abelops' (PBR) (v)
  • Abelia × grandiflora 'Francis Mason' (v)
  • Abelia × grandiflora 'Hopleys' (PBR) (v)
  • Abelia × grandiflora 'Kaleidoscope' (PBR) (v)
  • Abelia × grandiflora 'Lake Maggiore'
  • Abelia 'Edward Goucher'
  • Abutilon megapotamicum
  • Abutilon 'Kentish Belle'
  • Acacia dealbata
  • Acaena buchananii
  • Acaena microphylla
  • Acaena microphylla 'Kupferteppich'
  • Acaena saccaticupula 'Blue Haze'
  • Acanthophyllum cerastioides
  • Acanthus mollis
  • Acanthus mollis 'Hollard's Gold'
  • Acanthus mollis Latifolius Group
  • Acanthus spinosus L.
  • Acanthus 'Whitewater' (v)
  • Acer palmatum 'Atropurpureum' (A)
  • Acer palmatum 'Beni-maiko' (P)
  • Acer palmatum 'Bloodgood' (A)
  • Acer palmatum 'Emerald Lace' (D)
  • Acer palmatum 'Orange Dream' (P)
  • Acer palmatum 'Orangeola' (D)
  • Acer palmatum 'Osakazuki' (A)
  • Acer palmatum 'Seiryu' (D)
  • Acer palmatum 'Shaina' (P)
  • Acer shirasawanum 'Aureum'
  • Achillea ageratifolia
  • Achillea ageratum
  • Achillea clavennae
  • Achillea clypeolata Sm.
  • Achillea filipendulina 'Cloth of Gold'
  • Achillea filipendulina 'Gold Plate'
  • Achillea millefolium
  • Achillea millefolium 'Cerise Queen'
  • Achillea millefolium 'Lilac Beauty'
  • Achillea millefolium 'Red Beauty'
  • Achillea millefolium 'Red Velvet'
  • Achillea ptarmica
  • Achillea ptarmica (The Pearl Group) 'The Pearl' (clonal) (d)
  • Achillea × huteri
  • Achillea × kolbiana
  • Achillea × lewisii 'King Edward'
  • Achillea Anthea = 'Anblo'
  • Achillea Desert Eve Light Yellow (Desert Eve Series)
  • Achillea 'Apfelblüte' (Galaxy Series)
  • Achillea 'Coronation Gold'
  • Achillea 'Inca Gold'
  • Achillea 'King Alfred'
  • Achillea 'Lachsschönheit' (Galaxy Series)
  • Achillea 'Moonshine'
  • Achillea 'Paprika' (Galaxy Series)
  • Achillea 'Pretty Belinda'
  • Achillea Summer Pastels Group
  • Achillea 'Terracotta'
  • Achillea 'Walther Funcke'
  • Achillea 'Wilczekii'
  • Acis autumnalis
  • Aconitum carmichaelii
  • Aconitum carmichaelii (Wilsonii Group) 'Barker's Variety'
  • Aconitum lycoctonum subsp. lycoctonum
  • Aconitum lycoctonum subsp. vulparia
  • Aconitum napellus
  • Aconitum × cammarum 'Bicolor'
  • Aconitum × cammarum 'Eleanora'
  • Aconitum 'Blue Sceptre'
  • Aconitum 'Bressingham Spire'
  • Aconitum 'Newry Blue'
  • Aconitum 'Spark's Variety'
  • Acorus calamus 'Argenteostriatus' (v)
  • Acorus gramineus 'Golden Delight'
  • Acorus gramineus 'Hakuro-nishiki' (v)
  • Acorus gramineus 'Ogon' (v)
  • Acorus gramineus 'Variegatus' (v)
  • Actaea matsumurae 'White Pearl'
  • Actaea podocarpa
  • Actaea simplex (Atropurpurea Group) 'Black Negligee'
  • Actaea simplex (Atropurpurea Group) 'Brunette'
  • Actaea simplex Atropurpurea Group
  • Actinidia kolomikta
  • Actinidia pilosula (Finet & Gagnep.) Stapf ex Hand.-Mazz.
  • Adenophora pereskiifolia 'Alba'
  • Adenophora polyantha
  • Adiantum aleuticum 'Imbricatum'
  • Adiantum aleuticum 'Miss Sharples'
  • Adiantum hispidulum 'Bronze Venus'
  • Adiantum venustum
  • Aethionema grandiflorum
  • Aethionema 'Warley Rose'
  • Agapanthus inapertus 'Midnight Cascade'
  • Agapanthus inapertus subsp. hollandii 'Sky'
  • Agapanthus inapertus subsp. pendulus 'Graskop'
  • Agapanthus praecox 'Albiflorus'
  • Agapanthus Twister = 'Ambic001' (PBR)
  • Agapanthus 'Finnline' (v)
  • Agapanthus 'Golden Drop' (PBR) (v)
  • Agapanthus Headbourne hybrids
  • Agapanthus 'Lilliput'
  • Agapanthus 'Northern Star' (PBR)
  • Agapanthus 'Peter Pan' ambig.
  • Agapanthus 'Purple Fountain'
  • Agapanthus 'Silver Baby'
  • Agapanthus 'Tinkerbell' (v)
  • Agastache foeniculum (Pursh) Kuntze
  • Agastache mexicana 'Sangria'
  • Agastache rugosa
  • Agastache rugosa f. albiflora 'Liquorice White'
  • Agastache rugosa 'Golden Jubilee'
  • Agastache rugosa 'Liquorice Blue'
  • Agastache 'Blackadder'
  • Agastache 'Blue Boa' (PBR)
  • Agastache 'Blue Fortune'
  • Agastache 'Firebird'
  • Ageratina altissima 'Chocolate'
  • Ageratina ligustrina
  • Agrimonia eupatoria
  • Agrostemma githago
  • Ajuga pyramidalis 'Metallica Crispa'
  • Ajuga reptans
  • Ajuga reptans Black Scallop = 'Binblasca' (PBR)
  • Ajuga reptans 'Atropurpurea'
  • Ajuga reptans 'Braunherz'
  • Ajuga reptans 'Burgundy Glow' (v)
  • Ajuga reptans 'Catlin's Giant'
  • Ajuga reptans f. albiflora 'Alba'
  • Ajuga reptans 'Golden Beauty' (v)
  • Ajuga reptans 'Mahogany'
  • Ajuga reptans 'Multicolor' (v)
  • Ajuga reptans 'Purple Torch'
  • Ajuga reptans 'Variegata' (v)
  • Ajuga tenorei 'Valfredda'
  • Ajuga 'Pink Lightning' (v)
  • Akebia quinata
  • Akebia quinata cream-flowered
  • Albuca shawii
  • Alcea rosea Chater's Double Group (d)
  • Alcea rosea Chater's Double Group yellow-flowered (d)
  • Alcea rosea 'Nigra'
  • Alcea rosea single-flowered
  • Alcea rosea Summer Carnival Group
  • Alchemilla alpina L.
  • Alchemilla conjuncta
  • Alchemilla erythropoda
  • Alchemilla mollis
  • Alchemilla xanthochlora
  • Allium ampeloprasum var. babingtonii
  • Allium cepa Aggregatum Group
  • Allium cepa Proliferum Group
  • Allium cernuum
  • Allium fistulosum
  • Allium fistulosum 'Red Welsh'
  • Allium giganteum
  • Allium hollandicum 'Purple Sensation'
  • Allium lusitanicum
  • Allium moly
  • Allium neapolitanum
  • Allium nutans
  • Allium oreophilum
  • Allium sativum
  • Allium schoenoprasum
  • Allium schoenoprasum dwarf, white-flowered
  • Allium schoenoprasum f. albiflorum
  • Allium schoenoprasum 'Forescate'
  • Allium schoenoprasum thick-leaved
  • Allium senescens
  • Allium sphaerocephalon
  • Allium thunbergii 'Ozawa'
  • Allium tuberosum
  • Allium unifolium
  • Allium ursinum
  • Aloe arborescens 'Variegata' (v)
  • Aloe bakeri
  • Aloe juvenna
  • Aloe peglerae
  • Aloe rauhii
  • Aloe vera
  • Alopecurus pratensis 'Aureovariegatus' (v)
  • Aloysia citrodora
  • Alstroemeria aurea
  • Alstroemeria ligtu hybrids
  • Alstroemeria psittacina
  • Alstroemeria psittacina 'Royal Star' (v)
  • Alstroemeria Inca Glow = 'Koglow' (Inca Series)
  • Alstroemeria Indian Summer = 'Tesronto' (PBR) (Summer Paradise Series)
  • Alstroemeria Rock 'n' Roll = 'Alsdun01' (PBR) (v)
  • Alstroemeria Summer Breeze = 'Teshunte' (PBR) (Summer Paradise Series)
  • Alstroemeria Doctor Salter's hybrids
  • Althaea officinalis
  • Alyssum montanum
  • Alyssum saxatile 'Summit'
  • Amaranthus tricolor
  • Amsonia tabernaemontana
  • Anacyclus pyrethrum var. depressus 'Garden Gnome'
  • Anaphalis margaritacea
  • Anaphalis nepalensis var. monocephala
  • Anchusa azurea 'Dropmore'
  • Anchusa azurea 'Feltham Pride'
  • Anchusa azurea 'Little John'
  • Anchusa azurea 'Loddon Royalist'
  • Anchusa officinalis
  • Androsace geraniifolia
  • Androsace lanuginosa
  • Androsace sarmentosa 'Sherriffii'
  • Androsace sarmentosa Wall.
  • Androsace sempervivoides
  • Androsace studiosorum 'Chumbyi'
  • Anemanthele lessoniana
  • Anemone altaica
  • Anemone baldensis
  • Anemone blanda
  • Anemone blanda blue-flowered
  • Anemone blanda 'White Splendour'
  • Anemone hupehensis 'Hadspen Abundance'
  • Anemone hupehensis 'Praecox'
  • Anemone hupehensis var. japonica
  • Anemone hupehensis var. japonica 'Pamina'
  • Anemone hupehensis var. japonica 'Prinz Heinrich'
  • Anemone hupehensis var. japonica 'Splendens'
  • Anemone nemorosa
  • Anemone rivularis
  • Anemone sylvestris
  • Anemone tomentosa
  • Anemone × hybrida 'Andrea Atkinson'
  • Anemone × hybrida 'Honorine Jobert'
  • Anemone × hybrida 'Königin Charlotte'
  • Anemone × hybrida 'Lady Gilmour' Wolley-Dod
  • Anemone × hybrida 'Montrose'
  • Anemone × hybrida 'Robustissima'
  • Anemone × hybrida 'September Charm'
  • Anemone × hybrida 'Whirlwind'
  • Anemone × lesseri
  • Anethum graveolens
  • Angelica archangelica
  • Angelica gigas
  • Anisodontea capensis
  • Antennaria dioica
  • Antennaria dioica 'Nyewoods Variety'
  • Antennaria dioica 'Rubra'
  • Antennaria parvifolia
  • Antennaria rosea
  • Anthemis arvensis
  • Anthemis carpatica 'Karpatenschnee'
  • Anthemis marschalliana
  • Anthemis punctata subsp. cupaniana
  • Anthemis sancti-johannis
  • Anthemis tinctoria
  • Anthemis tinctoria 'Charme' (PBR)
  • Anthemis tinctoria 'E.C. Buxton'
  • Anthemis tinctoria 'Kelwayi'
  • Anthemis tinctoria 'Sauce Hollandaise'
  • Anthriscus cerefolium
  • Anthriscus sylvestris 'Ravenswing'
  • Apium graveolens
  • Apium graveolens (Secalinum Group) 'Par-cel'
  • Aquilegia alpina
  • Aquilegia bertolonii
  • Aquilegia canadensis
  • Aquilegia chrysantha
  • Aquilegia coerulea
  • Aquilegia flabellata 'Cameo Blue and White' (Cameo Series)
  • Aquilegia flabellata var. pumila
  • Aquilegia vulgaris var. stellata 'Black Barlow' (Barlow Series) (d)
  • Aquilegia vulgaris var. stellata 'Nora Barlow' (Barlow Series) (d)
  • Aquilegia vulgaris Vervaeneana Group (v)
  • Aquilegia 'Hensol Harebell'
  • Aquilegia 'Lime Sorbet'
  • Aquilegia McKana Group
  • Aquilegia Music Series
  • Arabis alpina subsp. caucasica 'Douler Angevine' (v)
  • Arabis alpina subsp. caucasica 'Flore Pleno' (d)
  • Arabis alpina subsp. caucasica 'Pixie Cream'
  • Arabis alpina subsp. caucasica 'Rosea'
  • Arabis alpina subsp. caucasica 'Schneehaube'
  • Arabis alpina subsp. caucasica 'Variegata' (v)
  • Arabis androsacea
  • Arabis blepharophylla 'Frühlingszauber'
  • Arabis ferdinandi-coburgi
  • Arabis ferdinandi-coburgi 'Old Gold' (v)
  • Arabis procurrens 'Variegata' (v)
  • Arabis × arendsii 'Compinkie'
  • Aralia racemosa
  • Arctium lappa
  • Arenaria balearica
  • Arenaria montana
  • Arenaria purpurascens
  • Argyrocytisus battandieri
  • Arisarum proboscideum
  • Armeria alliacea f. leucantha
  • Armeria juniperifolia
  • Armeria juniperifolia × maritima
  • Armeria juniperifolia 'Alba'
  • Armeria juniperifolia 'Bevan's Variety'
  • Armeria juniperifolia 'Sugar Baby'
  • Armeria maritima 'Alba'
  • Armeria maritima 'Armada Rose' (Armada Series)
  • Armeria maritima 'In the Red'
  • Armeria maritima 'Nifty Thrifty' (v)
  • Armeria pseudarmeria 'Ballerina Red' (Ballerina Series)
  • Armoracia rusticana
  • Armoracia rusticana 'Variegata' (v)
  • Arnica chamissonis Less.
  • Arnica montana
  • Aronia arbutifolia 'Erecta'
  • Artemisia abrotanum
  • Artemisia absinthium
  • Artemisia absinthium 'Lambrook Silver'
  • Artemisia alba
  • Artemisia arborescens
  • Artemisia caucasica
  • Artemisia chamaemelifolia
  • Artemisia dracunculus
  • Artemisia lactiflora
  • Artemisia lactiflora Guizhou Group
  • Artemisia ludoviciana
  • Artemisia ludoviciana 'Silver Queen'
  • Artemisia ludoviciana 'Valerie Finnis'
  • Artemisia maritima 'Coca-Cola'
  • Artemisia pontica
  • Artemisia schmidtiana
  • Artemisia schmidtiana 'Nana'
  • Artemisia stelleriana
  • Artemisia stelleriana 'Boughton Silver'
  • Artemisia vulgaris 'Variegata' (v)
  • Artemisia 'Powis Castle'
  • Arum italicum subsp. italicum 'Marmoratum'
  • Aruncus aethusifolius
  • Aruncus dioicus (m)
  • Aruncus dioicus 'Kneiffii'
  • Asarina procumbens
  • Asarum caudatum
  • Asclepias tuberosa
  • Asperula tinctoria
  • Asphodeline lutea
  • Asphodelus albus
  • Asplenium scolopendrium
  • Asplenium scolopendrium 'Angustatum'
  • Asplenium scolopendrium Crispum Group
  • Asplenium scolopendrium Cristatum Group
  • Asplenium scolopendrium Undulatum Group
  • Aster alpinus
  • Aster alpinus 'Dunkle Schöne'
  • Aster alpinus 'Happy End'
  • Aster alpinus 'Trimix'
  • Aster amellus 'Brilliant'
  • Aster amellus 'King George'
  • Aster amellus 'Veilchenkönigin'
  • Aster pyrenaeus 'Lutetia'
  • Aster × frikartii 'Flora's Delight'
  • Aster × frikartii 'Jungfrau'
  • Aster × frikartii 'Mönch'
  • Astilbe chinensis var. pumila
  • Astilbe chinensis var. taquetii
  • Astilbe chinensis var. taquetii 'Superba'
  • Astilbe × crispa 'Perkeo'
  • Astilbe 'Amerika' (× arendsii)
  • Astilbe 'Beauty of Ernst' (× arendsii)
  • Astilbe 'Bonn' (japonica hybrid)
  • Astilbe 'Bressingham Beauty' (× arendsii)
  • Astilbe 'Bronce Elegans' (simplicifolia hybrid)
  • Astilbe 'Burgunderrot' (× arendsii)
  • Astilbe 'Delft Lace'
  • Astilbe 'Deutschland' (japonica hybrid)
  • Astilbe 'Etna' (japonica hybrid)
  • Astilbe 'Europa' (japonica hybrid)
  • Astilbe 'Fanal' (× arendsii)
  • Astilbe 'Glut' (× arendsii)
  • Astilbe 'Grete Püngel' (× arendsii)
  • Astilbe 'Inshriach Pink' (simplicifolia hybrid)
  • Astilbe 'Irrlicht' (× arendsii)
  • Astilbe 'Lollipop'
  • Astilbe 'Maggie Daley' (× arendsii)
  • Astilbe 'Peter Barrow' (glaberrima hybrid)
  • Astilbe 'Professor van der Wielen' (thunbergii hybrid)
  • Astilbe Showstar Group (× arendsii)
  • Astilbe 'Sprite' (simplicifolia hybrid)
  • Astilbe 'Straussenfeder' (thunbergii hybrid)
  • Astilbe 'Willie Buchanan' (simplicifolia hybrid)
  • Astrantia major
  • Astrantia major 'Abbey Road' (PBR)
  • Astrantia major 'Claret'
  • Astrantia major Gill Richardson Group
  • Astrantia major 'Large White'
  • Astrantia major 'Lars'
  • Astrantia major 'Primadonna'
  • Astrantia major 'Rubra'
  • Astrantia major 'Ruby Wedding'
  • Astrantia major 'Star of Beauty' (PBR) (Sparkling Stars Series)
  • Astrantia major subsp. involucrata 'Shaggy'
  • Astrantia major 'Sunningdale Variegated' (v)
  • Astrantia major 'Venice' (PBR)
  • Astrantia maxima
  • Astrantia 'Buckland'
  • Astrantia 'Hadspen Blood'
  • Astrantia 'Moulin Rouge' (PBR)
  • Astrantia 'Roma' (PBR)
  • Athyrium filix-femina
  • Athyrium filix-femina 'Frizelliae'
  • Athyrium niponicum var. pictum
  • Atriplex hortensis var. rubra
  • Aubrieta gracilis 'Kitte'
  • Aubrieta gracilis 'Kitte Blue'
  • Aubrieta Axcent Deep Red = 'Abrz0001' (PBR) (Axcent Series)
  • Aubrieta 'Blue Cascade' (Cascade Series)
  • Aubrieta 'Blue Whale'
  • Aubrieta 'Bressingham Pink' (d)
  • Aubrieta 'Bressingham Red'
  • Aubrieta 'Doctor Mules'
  • Aubrieta 'Hamburger Stadtpark'
  • Aubrieta 'Lilac Cascade' (Cascade Series)
  • Aubrieta 'Purple Cascade' (Cascade Series)
  • Aubrieta 'Purple Charm'
  • Aubrieta 'Red Carpet'
  • Aubrieta 'Royal Blue' (Royal Series)
  • Aubrieta 'Royal Red' (Royal Series)
  • Aubrieta 'Somerford Lime' (v)
  • Aucuba japonica 'Crotonifolia' (m/v)
  • Aucuba japonica 'Dentata' (f)
  • Aucuba japonica 'Variegata' (f/v)
  • Aurinia saxatilis 'Citrina'
  • Aurinia saxatilis 'Gold Dust'
  • Aurinia saxatilis 'Goldkugel'
  • Aurinia saxatilis 'Variegata' (v)
  • Azara serrata
  • Ballota nigra
  • Baptisia australis
  • Barbarea verna
  • Berberis aggregata
  • Berberis gagnepainii var. lanceifolia 'Fernspray'
  • Berberis julianae
  • Berberis thunbergii 'Aurea'
  • Berberis thunbergii f. atropurpurea
  • Berberis thunbergii f. atropurpurea 'Harlequin' (v)
  • Berberis thunbergii f. atropurpurea 'Red Chief'
  • Berberis thunbergii 'Starburst' (PBR) (v)
  • Berberis verruculosa
  • Berberis wilsoniae
  • Berberis × media 'Parkjuweel'
  • Berberis × ottawensis f. purpurea 'Superba'
  • Berberis × stenophylla 'Corallina Compacta'
  • Berberis × stenophylla Lindl.
  • Bergenia cordifolia
  • Bergenia cordifolia 'Lunar Glow'
  • Bergenia cordifolia 'Purpurea'
  • Bergenia cordifolia 'Tubby Andrews' (v)
  • Bergenia cordifolia 'Vinterglöd'
  • Bergenia crassifolia
  • Bergenia purpurascens var. delavayi
  • Bergenia 'Abendglut'
  • Bergenia 'Bach'
  • Bergenia 'BartÓk'
  • Bergenia 'Bressingham Salmon'
  • Bergenia 'Claire Maxine'
  • Bergenia 'Eden's Magic Giant'
  • Bergenia 'Morgenröte'
  • Bergenia 'Overture'
  • Bergenia 'Rotblum'
  • Bergenia 'Silberlicht'
  • Bergenia 'Wintermärchen'
  • Berkheya purpurea
  • Betonica macrantha
  • Betonica macrantha 'Superba'
  • Betonica officinalis
  • Betonica officinalis 'Hummelo'
  • Betonica officinalis 'Wisley White'
  • Bidens aurea 'Hannay's Lemon Drop'
  • Billardiera longiflora 'Cherry Berry'
  • Billbergia aff. × windii
  • Blechnum chilense
  • Blechnum spicant
  • Borago officinalis
  • Borago officinalis 'Alba'
  • Borago pygmaea
  • Bothriochloa bladhii
  • Brachyglottis (Dunedin Group) 'Sunshine'
  • Briza media
  • Briza media 'Russells' (PBR)
  • Brunnera macrophylla
  • Brunnera macrophylla 'Dawson's White' (v)
  • Brunnera macrophylla 'Jack Frost' (PBR)
  • Brunnera macrophylla 'Looking Glass' (PBR)
  • Buddleja alternifolia
  • Buddleja davidii 'île de France'
  • Buddleja davidii Buzz Magenta = 'Tobudpipur' (PBR) (Buzz Series)
  • Buddleja davidii Buzz Sky Blue = 'Tobudskybl' (PBR) (Buzz Series)
  • Buddleja davidii Nanho Purple = 'Monum'
  • Buddleja davidii Nanho White = 'Monite'
  • Buddleja davidii 'Black Knight'
  • Buddleja davidii 'Dartmoor'
  • Buddleja davidii 'Empire Blue'
  • Buddleja davidii 'Harlequin' (v)
  • Buddleja davidii 'Royal Red'
  • Buddleja davidii 'Santana' (v)
  • Buddleja davidii 'White Cloud'
  • Buddleja davidii 'White Profusion'
  • Buddleja globosa
  • Buddleja lindleyana
  • Buddleja × pikei 'Hever'
  • Buddleja × weyeriana 'Bicolor'
  • Buddleja × weyeriana 'Sungold'
  • Buddleja Flutterby Petite Tutti Fruitti Pink = 'Podaras 13' (PBR) (Flutterby Petite Series)
  • Buddleja 'Blue Chip' (PBR) (Lo and Behold Series)
  • Buddleja 'Lochinch'
  • Buddleja 'Morning Mist' (PBR)
  • Buddleja 'Pink Delight'
  • Bulbine frutescens
  • Bulbinella hookeri
  • Buphthalmum salicifolium
  • Buphthalmum salicifolium 'Sunwheel'
  • Buxus microphylla 'Faulkner'
  • Buxus sempervirens 'Aureovariegata' (v)
  • Buxus sempervirens clipped ball
  • Buxus sempervirens clipped cone
  • Buxus sempervirens clipped pyramid
  • Buxus sempervirens clipped spiral
  • Buxus sempervirens 'Elegantissima' (v)
  • Buxus sempervirens 'Fiesta'
  • Buxus sempervirens 'Handsworthensis'
  • Buxus sempervirens 'Suffruticosa'
  • Buxus sempervirens 'Suffruticosa Variegata' (v)
  • Calamagrostis × acutiflora 'Karl Foerster'
  • Calamagrostis × acutiflora 'Overdam' (v)
  • Calamintha grandiflora
  • Calamintha grandiflora 'Variegata' (v)
  • Calamintha nepeta
  • Calamintha nepeta subsp. glandulosa 'White Cloud'
  • Calamintha nepeta subsp. nepeta 'Blue Cloud'
  • Calceolaria integrifolia
  • Calendula officinalis
  • Calla palustris
  • Callicarpa bodinieri var. giraldii 'Profusion'
  • Caltha palustris
  • Caltha palustris 'Flore Pleno' (d)
  • Caltha palustris var. alba
  • Camassia leichtlinii subsp. leichtlinii
  • Camassia quamash
  • Camellia japonica 'Adolphe Audusson'
  • Camellia japonica 'Lavinia Maggi'
  • Camellia japonica 'Tom Thumb'
  • Camellia × williamsii 'Debbie'
  • Camellia × williamsii 'Donation'
  • Campanula alliariifolia
  • Campanula arvatica
  • Campanula bononiensis
  • Campanula carpatica
  • Campanula carpatica 'Blaue Clips'
  • Campanula carpatica f. alba 'Weisse Clips'
  • Campanula carpatica var. turbinata
  • Campanula cochlearifolia 'Blue Baby' (Baby Series)
  • Campanula cochlearifolia 'Elizabeth Oliver' (d)
  • Campanula cochlearifolia 'Tubby'
  • Campanula cochlearifolia var. alba
  • Campanula cochlearifolia var. alba 'White Baby' (Baby Series)
  • Campanula garganica
  • Campanula garganica 'Dickson's Gold'
  • Campanula garganica 'Mrs Resholt'
  • Campanula glomerata 'Emerald'
  • Campanula glomerata 'Purple Pixie'
  • Campanula glomerata 'Superba'
  • Campanula glomerata var. acaulis hort.
  • Campanula lactiflora 'Loddon Anna'
  • Campanula lactiflora 'Prichard's Variety'
  • Campanula latifolia
  • Campanula latifolia var. alba
  • Campanula persicifolia
  • Campanula persicifolia 'Alba Coronata' (d)
  • Campanula persicifolia blue and white-flowered
  • Campanula persicifolia 'Blue Bloomers' (d)
  • Campanula persicifolia blue-flowered
  • Campanula persicifolia 'Chettle Charm'
  • Campanula persicifolia 'Kelly's Gold'
  • Campanula persicifolia 'Snowdrift'
  • Campanula persicifolia 'Takion Blue' (Takion Series)
  • Campanula persicifolia 'Takion White' (Takion Series)
  • Campanula persicifolia 'Telham Beauty' misapplied
  • Campanula portenschlagiana
  • Campanula portenschlagiana 'Catharina'
  • Campanula portenschlagiana 'Resholdt's Variety'
  • Campanula poscharskyana
  • Campanula poscharskyana 'E.H. Frost'
  • Campanula poscharskyana 'Hirsch Blue'
  • Campanula poscharskyana 'Lisduggan Variety'
  • Campanula pulla
  • Campanula punctata f. rubriflora
  • Campanula punctata f. rubriflora 'Bowl of Cherries'
  • Campanula punctata 'Pantaloons' (d)
  • Campanula punctata 'Silver Bells'
  • Campanula punctata 'Wedding Bells'
  • Campanula rapunculoides
  • Campanula rotundifolia
  • Campanula sarmatica
  • Campanula takesimana
  • Campanula versicolor
  • Campanula × haylodgensis 'Plena' (d)
  • Campanula Blue Octopus = 'Jls0504m' (PBR)
  • Campanula 'Birch Hybrid'
  • Campanula 'E.K. Toogood'
  • Campanula 'Kent Belle'
  • Campanula 'Pink Octopus' (PBR)
  • Campanula 'Ringsabell Mulberry Rose' (Ringsabell Series)
  • Campanula 'Viking' (PBR)
  • Campsis × tagliabuana 'Madame Galen'
  • Cardamine pratensis
  • Carex buchananii
  • Carex comans bronze-leaved
  • Carex comans 'Frosted Curls'
  • Carex comans red-leaved
  • Carex elata 'Aurea'
  • Carex morrowii 'Variegata' (v)
  • Carex oshimensis Everest = 'Fiwhite' (PBR) (v)
  • Carex oshimensis 'Evergold' (v)
  • Carex oshimensis 'Everillo' (PBR) (EverColor Series)
  • Carex secta
  • Carex testacea
  • Carex testacea 'Prairie Fire'
  • Carex Milk Chocolate = 'Milchoc' (PBR) (v)
  • Carex 'Amazon Mist'
  • Carthamus tinctorius
  • Carum carvi
  • Caryopteris incana 'Blue Cascade'
  • Caryopteris × clandonensis Sterling Silver = 'Lissilv' (PBR)
  • Caryopteris × clandonensis 'Ferndown'
  • Caryopteris × clandonensis 'Kew Blue'
  • Caryopteris × clandonensis 'Summer Sorbet' (PBR) (v)
  • Caryopteris × clandonensis 'Worcester Gold'
  • Catananche caerulea 'Major'
  • Ceanothus griseus var. horizontalis 'Silver Surprise' (PBR) (v)
  • Ceanothus thyrsiflorus
  • Ceanothus thyrsiflorus var. repens
  • Ceanothus × pallidus 'Marie Simon'
  • Ceanothus 'A.T. Johnson'
  • Ceanothus 'Autumnal Blue'
  • Ceanothus 'Blue Mound'
  • Ceanothus 'Blue Sapphire' (PBR)
  • Ceanothus 'Burkwoodii'
  • Ceanothus 'Concha'
  • Ceanothus 'Pershore Zanzibar' (PBR) (v)
  • Ceanothus 'Puget Blue'
  • Ceanothus 'Victoria'
  • Cedronella canariensis
  • Centaurea dealbata
  • Centaurea macrocephala
  • Centaurea montana
  • Centaurea montana 'Alba'
  • Centaurea montana 'Purple Heart'
  • Centaurea nigra
  • Centaurea orientalis
  • Centaurea scabiosa
  • Centaurea simplicicaulis
  • Centaurea 'Amethyst on Ice'
  • Centaurea 'John Coutts'
  • Centaurea 'Silver Feather'
  • Centranthus ruber
  • Centranthus ruber 'Albus'
  • Centranthus ruber 'Snowcloud'
  • Cephalaria alpina
  • Cephalaria dipsacoides
  • Cephalaria gigantea
  • Cerastium alpinum
  • Ceratostigma griffithii
  • Ceratostigma plumbaginoides
  • Cercis canadensis Lavender Twist = 'Covey'
  • Cercis siliquastrum
  • Chaenomeles speciosa 'Falconnet Charlet' (d)
  • Chaenomeles speciosa 'Geisha Girl' (d)
  • Chaenomeles speciosa 'Moerloosei'
  • Chaenomeles speciosa 'Nivalis'
  • Chaenomeles speciosa 'Snow'
  • Chaenomeles speciosa 'Umbilicata'
  • Chaenomeles × superba Pink Trail = 'Interpitra'
  • Chaenomeles × superba 'Cameo' (d)
  • Chaenomeles × superba 'Crimson and Gold'
  • Chaenomeles × superba 'Elly Mossel'
  • Chaenomeles × superba 'Hollandia'
  • Chaenomeles × superba 'Jet Trail'
  • Chaenomeles × superba 'Knap Hill Scarlet'
  • Chaenomeles × superba 'Lemon and Lime'
  • Chaenomeles × superba 'Pink Lady'
  • Chaenomeles × superba 'Red Joy'
  • Chaenomeles × superba 'Texas Scarlet'
  • Chaenomeles Madame Butterfly = 'Whitice'
  • Chamaecyparis pisifera 'Sungold'
  • Chamaemelum nobile
  • Chamaemelum nobile 'Flore Pleno' (d)
  • Chamaemelum nobile 'Treneague'
  • Chasmanthium latifolium
  • Chelone glabra
  • Chelone obliqua
  • Chenopodium bonus-henricus
  • Chenopodium giganteum
  • Choisya ternata
  • Choisya ternata Sundance = 'Lich'
  • Choisya × dewitteana Goldfingers = 'Limo' (PBR)
  • Choisya × dewitteana White Dazzler = 'Londaz' (PBR)
  • Choisya × dewitteana 'Aztec Gold' (PBR)
  • Choisya × dewitteana 'Aztec Pearl'
  • Chrysanthemum weyrichii
  • Chrysanthemum yezoense
  • Chrysanthemum zawadzkii
  • Chrysanthemum 'Anastasia' (21c)
  • Chrysanthemum 'Bronze Elegance' (21b)
  • Chrysanthemum 'Clara Curtis' (21d)
  • Chrysanthemum 'Cottage Apricot' (21)
  • Chrysanthemum 'Emperor of China' (21)
  • Chrysanthemum 'Goldengreenheart' (21d)
  • Chrysanthemum 'Julia Peterson'
  • Chrysanthemum 'Mei-Kyo' (28b)
  • Chrysanthemum 'Mrs Jessie Cooper' (21d)
  • Chrysanthemum 'Nantyderry Sunshine' (28b)
  • Chrysanthemum 'Tapestry Rose' (21d)
  • Chrysanthemum 'Vagabond Prince'
  • Cichorium intybus
  • Cichorium intybus 'Palla Rossa'
  • Cichorium intybus 'Red Rib'
  • Cirsium rivulare 'Atropurpureum'
  • Cistus creticus
  • Cistus × cyprius
  • Cistus × hybridus Little Miss Sunshine = 'Dunnecis' (PBR) (v)
  • Cistus × pulverulentus 'Sunset'
  • Cistus × purpureus
  • Clematis alpina 'Stolwijk Gold' (A)
  • Clematis armandi
  • Clematis armandi 'Snowdrift' (Ar)
  • Clematis cirrhosa 'Jingle Bells' (C)
  • Clematis cirrhosa var. purpurascens 'Freckles' (C)
  • Clematis cirrhosa 'Wisley Cream' (C)
  • Clematis flammula
  • Clematis heracleifolia 'Cassandra' (H)
  • Clematis integrifolia (I)
  • Clematis integrifolia 'Alba' (I)
  • Clematis macropetala 'Wesselton' (A/d)
  • Clematis marmoraria
  • Clematis montana var. grandiflora (M)
  • Clematis montana var. rubens 'Rubens Superba' (M)
  • Clematis montana var. rubens 'Tetrarose' (M)
  • Clematis montana var. wilsonii
  • Clematis orientalis ambig.
  • Clematis tangutica
  • Clematis 'Étoile Violette' (Vt)
  • Clematis × triternata 'Rubromarginata'
  • Clematis Chinook = 'Evipo013' (PBR)
  • Clematis Crystal Fountain = 'Evipo038' (PBR) (EL)
  • Clematis Gazelle = 'Evipo014' (PBR) (I)
  • Clematis Golden Tiara = 'Kugotia' (PBR) (Ta)
  • Clematis Harlow Carr = 'Evipo004' (PBR)
  • Clematis Hyde Hall = 'Evipo009' (PBR) (EL)
  • Clematis Petit Faucon = 'Evisix' (PBR) (I)
  • Clematis Viennetta = 'Evipo006' (PBR) (d)
  • Clematis 'Apple Blossom' (Ar)
  • Clematis 'Belle Nantaise' (EL)
  • Clematis 'Betty Corning' (Vt)
  • Clematis 'Bill MacKenzie' (Ta)
  • Clematis 'Black Prince' (Vt)
  • Clematis 'Blue Bird' (A/d)
  • Clematis 'Broughton Bride' (A)
  • Clematis 'Broughton Star' (M/d)
  • Clematis 'Constance' (A)
  • Clematis 'Elizabeth' (M)
  • Clematis 'Frances Rivis' (A)
  • Clematis 'Freda' (M)
  • Clematis 'Gravetye Beauty' (T)
  • Clematis 'Hagley Hybrid' (LL)
  • Clematis 'Helsingborg' (A)
  • Clematis 'Kermesina' (Vt)
  • Clematis 'M. Koster' (Vt)
  • Clematis 'Marjorie' (M/d)
  • Clematis 'Markham's Pink' (A/d)
  • Clematis 'Mayleen' (M)
  • Clematis 'Mrs Robert Brydon' (H)
  • Clematis 'Multi Blue' (EL)
  • Clematis 'Nelly Moser' (EL)
  • Clematis 'Niobe' (EL)
  • Clematis 'Pagoda' (Vt)
  • Clematis 'Perle d'Azur' (LL)
  • Clematis 'Princess Diana' (T)
  • Clematis 'Rosy O'Grady' (A)
  • Clematis 'Rouge Cardinal' (LL)
  • Clematis 'Ruby' (A)
  • Clematis 'Snow Queen' (EL)
  • Clematis 'The President' (EL)
  • Clematis 'Tie Dye' (LL)
  • Clematis 'Venosa Violacea' (Vt)
  • Clematis 'Voluceau' (Vt)
  • Clematis 'Wee Willie Winkie' (M)
  • Clematis 'White Satin' (A)
  • Clematis 'Will Goodwin' (EL)
  • Clematis 'Willy' (A)
  • Clethra alnifolia
  • Clethra alnifolia 'Fern Valley Pink'
  • Clinopodium alpinum
  • Clinopodium vulgare
  • Convallaria majalis
  • Convallaria majalis var. rosea
  • Convolvulus cneorum
  • Coprosma 'Evening Glow' (PBR) (f/v)
  • Coprosma 'Fire Burst' (PBR) (f/v)
  • Coprosma 'Karo Red' (PBR) (v)
  • Coprosma 'Lemon and Lime' (PBR) (v)
  • Coprosma 'Rainbow Surprise' (PBR) (v)
  • Cordyline 'Sundance'
  • Coreopsis grandiflora 'Mayfield Giant'
  • Coreopsis grandiflora 'Sunray'
  • Coreopsis lanceolata 'Goldfink'
  • Coreopsis rosea 'American Dream'
  • Coreopsis tinctoria
  • Coreopsis verticillata
  • Coriandrum sativum
  • Cornus alba 'Elegantissima' (v)
  • Cornus alba 'Gouchaultii' (v)
  • Cornus alba 'Kesselringii'
  • Cornus alba L.
  • Cornus alba 'Sibirica'
  • Cornus alba 'Spaethii' (v)
  • Cornus kousa var. chinensis
  • Cornus sanguinea 'Midwinter Fire'
  • Cornus sericea 'Flaviramea'
  • Cornus sericea 'White Gold' (v)
  • Coronilla valentina subsp. glauca
  • Coronilla valentina subsp. glauca 'Citrina'
  • Coronilla valentina subsp. glauca 'Pygmaea'
  • Coronilla valentina subsp. glauca 'Variegata' (v)
  • Cortaderia richardii (Endl.) Zotov
  • Cortaderia selloana 'Pumila'
  • Corydalis cheilanthifolia
  • Corydalis flexuosa 'China Blue'
  • Corydalis flexuosa 'Père David'
  • Corydalis flexuosa 'Purple Leaf'
  • Corydalis lutea
  • Corylus avellana (F)
  • Corylus avellana 'Butler' (F)
  • Corylus avellana 'Contorta'
  • Corylus avellana 'Corabel' (F)
  • Corylus avellana 'Cosford' (F)
  • Corylus avellana 'Pendula'
  • Corylus avellana 'Red Majestic' (PBR)
  • Corylus colurna
  • Corylus maxima 'Gunslebert' (F)
  • Corylus maxima 'Kentish Cob' (F)
  • Corylus maxima 'Purpurea' (F)
  • Corylus maxima 'Red Filbert' (F)
  • Corylus 'Te Terra Red'
  • Cotinus coggygria
  • Cotinus coggygria Golden Spirit = 'Ancot' (PBR)
  • Cotinus coggygria Purpureus Group
  • Cotinus coggygria 'Young Lady' (PBR)
  • Cotoneaster acuminatus
  • Cotoneaster affinis
  • Cotoneaster albokermesinus
  • Cotoneaster amoenus
  • Cotoneaster apiculatus
  • Cotoneaster ascendens
  • Cotoneaster assamensis
  • Cotoneaster atropurpureus
  • Cotoneaster atropurpureus 'Variegatus' (v)
  • Cotoneaster boisianus
  • Cotoneaster bradyi
  • Cotoneaster bullatus
  • Cotoneaster bumthangensis
  • Cotoneaster camilli-schneideri
  • Cotoneaster canescens
  • Cotoneaster cinnabarinus
  • Cotoneaster cochleatus
  • Cotoneaster congestus
  • Cotoneaster conspicuus
  • Cotoneaster conspicuus 'Leicester Gem'
  • Cotoneaster cooperi
  • Cotoneaster cordifolius
  • Cotoneaster cornifolius
  • Cotoneaster dammeri
  • Cotoneaster dielsianus
  • Cotoneaster divaricatus
  • Cotoneaster elatus
  • Cotoneaster elegans
  • Cotoneaster emeiensis
  • Cotoneaster falconeri
  • Cotoneaster fastigiatus
  • Cotoneaster flinckii
  • Cotoneaster floridus
  • Cotoneaster forrestii
  • Cotoneaster franchetii
  • Cotoneaster frigidus
  • Cotoneaster gamblei
  • Cotoneaster ganghobaensis
  • Cotoneaster glabratus
  • Cotoneaster glacialis
  • Cotoneaster glaucophyllus
  • Cotoneaster glomerulatus
  • Cotoneaster gracilis
  • Cotoneaster granatensis
  • Cotoneaster harrovianus
  • Cotoneaster hedegaardii 'Fructu Luteo'
  • Cotoneaster henryanus
  • Cotoneaster henryanus 'Corina'
  • Cotoneaster hjelmqvistii
  • Cotoneaster hodjingensis
  • Cotoneaster horizontalis
  • Cotoneaster hualiensis
  • Cotoneaster hummelii
  • Cotoneaster hylmoei
  • Cotoneaster hypocarpus
  • Cotoneaster ignavus
  • Cotoneaster ignescens
  • Cotoneaster ignotus
  • Cotoneaster induratus
  • Cotoneaster insculptus
  • Cotoneaster integerrimus
  • Cotoneaster integrifolius
  • Cotoneaster kangdingensis
  • Cotoneaster lacteus
  • Cotoneaster lancasteri
  • Cotoneaster langei
  • Cotoneaster laxiflorus
  • Cotoneaster lidjiangensis
  • Cotoneaster lucidus
  • Cotoneaster ludlowii
  • Cotoneaster magnificus
  • Cotoneaster mairei
  • Cotoneaster marginatus 'Blazovice'
  • Cotoneaster marginatus 'Brno'
  • Cotoneaster marginatus Lindl. ex Loudon
  • Cotoneaster marquandii
  • Cotoneaster meuselii
  • Cotoneaster milkedandaensis
  • Cotoneaster miniatus
  • Cotoneaster mirabilis
  • Cotoneaster monopyrenus
  • Cotoneaster morrisonensis
  • Cotoneaster moupinensis
  • Cotoneaster mucronatus
  • Cotoneaster nanshan
  • Cotoneaster newryensis
  • Cotoneaster nitens
  • Cotoneaster nohelii
  • Cotoneaster notabilis
  • Cotoneaster nummularioides
  • Cotoneaster nummularius Fisch. & C.A. Mey.
  • Cotoneaster obscurus
  • Cotoneaster obtusus Wall. ex Lindl.
  • Cotoneaster pangiensis
  • Cotoneaster pannosus
  • Cotoneaster paradoxus
  • Cotoneaster parkeri
  • Cotoneaster pekinensis
  • Cotoneaster perpusillus
  • Cotoneaster pluriflorus
  • Cotoneaster poluninii
  • Cotoneaster polycarpus
  • Cotoneaster procumbens
  • Cotoneaster procumbens 'Queen of Carpets'
  • Cotoneaster prostratus
  • Cotoneaster przewalskii
  • Cotoneaster pseudo-obscurus
  • Cotoneaster qungbixiensis
  • Cotoneaster racemiflorus
  • Cotoneaster rehderi
  • Cotoneaster roseus
  • Cotoneaster rugosus E. Pritz. ex Diels
  • Cotoneaster salicifolius
  • Cotoneaster salicifolius 'Brno Orangeade'
  • Cotoneaster salicifolius 'Gnom'
  • Cotoneaster salicifolius 'Herbstfeuer'
  • Cotoneaster salicifolius 'Repens'
  • Cotoneaster salwinensis
  • Cotoneaster sandakphuensis
  • Cotoneaster scandinavicus
  • Cotoneaster schantungensis
  • Cotoneaster schubertii
  • Cotoneaster serotinus Hutch.
  • Cotoneaster shannanensis
  • Cotoneaster shansiensis
  • Cotoneaster sherriffii
  • Cotoneaster sikangensis
  • Cotoneaster simonsii
  • Cotoneaster splendens
  • Cotoneaster spongbergii
  • Cotoneaster staintonii
  • Cotoneaster sternianus
  • Cotoneaster suavis
  • Cotoneaster subacutus
  • Cotoneaster subadpressus
  • Cotoneaster taoensis
  • Cotoneaster tardiflorus
  • Cotoneaster tauricus
  • Cotoneaster teijiashanensis
  • Cotoneaster tengyuehensis
  • Cotoneaster thimphuensis
  • Cotoneaster tomentosus
  • Cotoneaster turbinatus
  • Cotoneaster vandelaarii
  • Cotoneaster veitchii
  • Cotoneaster verruculosus
  • Cotoneaster villosulus
  • Cotoneaster vilmorinianus
  • Cotoneaster wardii W.W. Sm.
  • Cotoneaster wilsonii
  • Cotoneaster yalungensis
  • Cotoneaster yinchangensis
  • Cotoneaster zabelii
  • Cotoneaster × suecicus 'Coral Beauty'
  • Cotoneaster × suecicus 'Erlinda' (v)
  • Cotoneaster × suecicus 'Ifor'
  • Cotoneaster × suecicus 'Skogholm'
  • Cotoneaster 'Hybridus Pendulus'
  • Cotoneaster 'Rothschildianus'
  • Cotoneaster 'Valkenburg'
  • Cotula hispida (DC.) Harv.
  • Crambe cordifolia
  • Crassula sarcocaulis
  • Crepis incana
  • Crinum × powellii
  • Crinum × powellii 'Album'
  • Crithmum maritimum
  • Crocosmia masoniorum
  • Crocosmia masoniorum 'Golden Swan'
  • Crocosmia × crocosmiiflora
  • Crocosmia × crocosmiiflora 'Babylon'
  • Crocosmia × crocosmiiflora 'Carmin Brillant'
  • Crocosmia × crocosmiiflora 'Columbus'
  • Crocosmia × crocosmiiflora 'Dusky Maiden'
  • Crocosmia × crocosmiiflora 'Emily McKenzie'
  • Crocosmia × crocosmiiflora 'Golden Glory' ambig.
  • Crocosmia × crocosmiiflora 'Honey Angels'
  • Crocosmia × crocosmiiflora 'Jackanapes'
  • Crocosmia × crocosmiiflora 'Mrs Geoffrey Howard'
  • Crocosmia × crocosmiiflora 'Solfatare'
  • Crocosmia × crocosmiiflora 'Star of the East'
  • Crocosmia × crocosmioides 'Castle Ward Late'
  • Crocosmia 'Firebird'
  • Crocosmia 'Hellfire'
  • Crocosmia 'John Boots'
  • Crocosmia 'Lucifer'
  • Crocosmia 'Orangeade'
  • Crocosmia 'Severn Sunrise'
  • Crocus tommasinianus
  • Cryptomeria japonica 'Bandai-sugi'
  • Cryptomeria japonica 'Compressa'
  • Cryptomeria japonica 'Cristata'
  • Cryptomeria japonica 'Elegans Compacta'
  • Cryptomeria japonica Elegans Group
  • Cryptomeria japonica 'Elegans Nana'
  • Cryptomeria japonica 'Nana'
  • Cryptomeria japonica 'Pygmaea'
  • Cryptomeria japonica 'Spiralis'
  • Cryptotaenia japonica
  • Cuminum cyminum
  • Cymbopogon citratus
  • Cymbopogon flexuosus
  • Cynara cardunculus
  • Cynara cardunculus (Scolymus Group) 'Purple Globe'
  • Cynara cardunculus (Scolymus Group) 'Romanesco'
  • Cynara cardunculus (Scolymus Group) 'Vert Globe'
  • Cynara cardunculus (Scolymus Group) 'Violet de Provence'
  • Cynara cardunculus 'Gobbo di Nizza'
  • Cyrtomium falcatum
  • Cyrtomium fortunei
  • Cytisus × kewensis
  • Cytisus × praecox 'Allgold'
  • Cytisus × praecox 'Warminster'
  • Dahlia 'Edge of Joy' (D)
  • Danae racemosa
  • Daphne blagayana
  • Daphne mezereum f. alba
  • Daphne mezereum 'Rosea'
  • Daphne odora 'Aureomarginata' (v)
  • Daphne tangutica
  • Daphne tangutica Retusa Group
  • Darmera peltata
  • Daucus carota
  • Delosperma cooperi
  • Delphinium Blue Fountains Group
  • Delphinium 'Dreaming Spires'
  • Delphinium 'Magic Fountains Blue/White Bee' (Magic Fountains Series)
  • Delphinium 'Magic Fountains Bright Eye' (Magic Fountains Series)
  • Delphinium 'Magic Fountains Cherry Blossom' (Magic Fountains Series)
  • Delphinium 'Magic Fountains Dark Blue' (Magic Fountains Series)
  • Delphinium 'Magic Fountains Deep Blue' (Magic Fountains Series)
  • Delphinium 'Magic Fountains Deep Rose/White Bee' (Magic Fountains Series)
  • Delphinium 'Magic Fountains Lavender' (Magic Fountains Series)
  • Delphinium 'Magic Fountains Lilac Pink' (Magic Fountains Series)
  • Delphinium 'Magic Fountains Lilac Rose' (Magic Fountains Series)
  • Delphinium 'Magic Fountains Pure White' (Magic Fountains Series)
  • Delphinium 'Magic Fountains Sky Blue' (Magic Fountains Series)
  • Delphinium 'Magic Fountains The Blues' (Magic Fountains Series)
  • Delphinium 'Magic Fountains White Pixie' (Magic Fountains Series)
  • Delphinium Pacific hybrids
  • Deschampsia cespitosa 'Bronzeschleier'
  • Deschampsia cespitosa 'Northern Lights' (v)
  • Desfontainia spinosa
  • Deutzia gracilis 'Nikko'
  • Deutzia scabra 'Punctata' (v)
  • Deutzia × elegantissima
  • Deutzia × elegantissima 'Rosealind'
  • Deutzia × hybrida 'Magicien' Lemoine
  • Deutzia × kalmiiflora
  • Deutzia × magnifica
  • Deutzia × rosea
  • Deutzia × rosea 'Carminea'
  • Deutzia × wilsonii
  • Deutzia 'Rosea Plena' (d)
  • Dianella tasmanica
  • Dianthus carthusianorum
  • Dianthus deltoides
  • Dianthus deltoides 'Brilliant' (p)
  • Dianthus (Allwoodii Group) 'Doris' pre-1954 (p)
  • Dianthus Lady in Red = 'Wp04 Xanthe' (PBR) (p)
  • Dianthus Shooting Star = 'Wp04 Flores' (PBR) (p)
  • Dianthus Starlight = 'Hilstar' (pf)
  • Dianthus Allwoodii Alpinus Group (p)
  • Dianthus 'Bailey's Celebration' (p)
  • Dianthus 'Devon Arctic Star' (Early Bird Series) (p)
  • Dianthus 'Dianne' (pf)
  • Dianthus 'Elizabethan' (p)
  • Dianthus 'Gran's Favourite' (p)
  • Dianthus 'Houndspool Cheryl' (p)
  • Dianthus 'Laced Monarch' (p)
  • Dianthus 'Letitia Wyatt' (p)
  • Dianthus 'Little Jock' (p)
  • Dianthus 'Moulin Rouge' (p)
  • Dianthus 'Mrs Sinkins' (p)
  • Dianthus 'Odessa Red' (Odessa Series) (pt)
  • Dianthus 'Starry Eyes' (p)
  • Dianthus 'Whatfield Magenta' (p)
  • Diascia barberae 'Blackthorn Apricot'
  • Diascia barberae 'Ruby Field'
  • Diascia vigilis
  • Diascia Ice Cracker = 'Hecrack'
  • Diascia Little Tango = 'Pentang' (PBR)
  • Diascia 'Joyce's Choice'
  • Diascia 'Lilac Belle'
  • Diascia 'Salmon Supreme'
  • Diascia 'Twinkle'
  • Dicentra eximia (Ker Gawl.) Torr. 'Snowdrift'
  • Dicentra formosa
  • Dicentra formosa 'Bacchanal'
  • Dicentra formosa f. alba
  • Dicentra formosa 'Langtrees'
  • Dicentra 'Luxuriant'
  • Dicentra 'Pearl Drops'
  • Dicentra 'Stuart Boothman'
  • Dictamnus albus var. purpureus
  • Dierama pulcherrimum
  • Digitalis ferruginea
  • Digitalis grandiflora
  • Digitalis lanata
  • Digitalis lutea
  • Digitalis purpurea Excelsior Group
  • Digitalis purpurea f. albiflora
  • Digitalis × mertonensis
  • Diplotaxis tenuifolia
  • Dipsacus fullonum
  • Doronicum orientale 'Magnificum'
  • Doronicum 'Finesse'
  • Doronicum 'Little Leo'
  • Draba aizoides
  • Dracocephalum argunense
  • Drimys winteri var. winteri
  • Dryas octopetala
  • Dryopteris affinis
  • Dryopteris affinis 'Angustata Crispa'
  • Dryopteris affinis 'Cristata'
  • Echeveria chihuahuaensis
  • Echeveria elegans
  • Echeveria gibbiflora 'Metallica'
  • Echeveria lilacina
  • Echeveria pulvinata 'Frosty'
  • Echeveria runyonii
  • Echeveria runyonii 'Topsy Turvy'
  • Echeveria shaviana
  • Echeveria 'Black Prince'
  • Echeveria 'Imbricata'
  • Echinacea pallida
  • Echinacea purpurea
  • Echinacea purpurea 'Magnus'
  • Echinacea purpurea 'Primadonna White' (Primadonna Series)
  • Echinacea purpurea 'Rubinstern'
  • Echinacea purpurea 'White Lustre'
  • Echinops bannaticus 'Star Frost'
  • Echinops ritro L.
  • Echinops ritro subsp. ruthenicus 'Platinum Blue'
  • Echinops ritro 'Veitch's Blue'
  • Edraianthus pumilio
  • Elaeagnus angustifolia
  • Elaeagnus pungens 'Dicksonii' (v)
  • Elaeagnus pungens 'Maculata' (v)
  • Elaeagnus × submacrophylla
  • Elaeagnus × submacrophylla 'Coastal Gold' (v)
  • Elsholtzia stauntonii
  • Elymus magellanicus
  • Elymus magellanicus 'Blue Sword'
  • Epilobium canum (Z)
  • Epilobium canum 'Dublin' (Z)
  • Epilobium canum 'Western Hills' (Z)
  • Epimedium alpinum
  • Epimedium perralderianum
  • Epimedium pubigerum
  • Epimedium × cantabrigiense
  • Epimedium × rubrum
  • Epimedium × versicolor 'Sulphureum'
  • Epimedium × warleyense
  • Epimedium × warleyense 'Orangekönigin'
  • Epimedium × youngianum 'Niveum'
  • Epimedium × youngianum 'Roseum'
  • Epimedium 'Akebono'
  • Epimedium 'Pink Elf' (PBR)
  • Epimedium 'Spine Tingler'
  • Eragrostis curvula 'Totnes Burgundy'
  • Eragrostis elliottii 'Wind Dancer'
  • Erica carnea 'Adrienne Duncan'
  • Erica carnea 'Ann Sparkes'
  • Erica carnea 'Beoley Pink'
  • Erica carnea 'C.J. Backhouse'
  • Erica carnea 'Challenger'
  • Erica carnea 'Clare Wilkinson'
  • Erica carnea 'December Red'
  • Erica carnea 'Dømmesmoen'
  • Erica carnea 'Early Red'
  • Erica carnea 'Eva'
  • Erica carnea f. alba 'Golden Starlet'
  • Erica carnea f. alba 'Ice Princess'
  • Erica carnea f. alba 'Isabell'
  • Erica carnea f. alba 'Rosalinde Schorn'
  • Erica carnea f. alba 'Schneesturm'
  • Erica carnea f. alba 'Snow Queen'
  • Erica carnea f. alba 'Springwood White'
  • Erica carnea f. alba 'Whitehall'
  • Erica carnea f. alba 'Winter Snow'
  • Erica carnea f. aureifolia 'Aurea'
  • Erica carnea f. aureifolia 'Barry Sellers'
  • Erica carnea f. aureifolia 'Bell's Extra Special'
  • Erica carnea f. aureifolia 'Foxhollow'
  • Erica carnea f. aureifolia 'Gelber Findling'
  • Erica carnea f. aureifolia 'Hilletje'
  • Erica carnea f. aureifolia 'January Sun'
  • Erica carnea f. aureifolia 'Westwood Yellow'
  • Erica carnea 'Foxhollow Fairy'
  • Erica carnea 'Gracilis'
  • Erica carnea 'Heathwood'
  • Erica carnea 'Jason Attwater'
  • Erica carnea 'Jennifer Anne'
  • Erica carnea 'John Kampa'
  • Erica carnea 'John Pook'
  • Erica carnea 'King George'
  • Erica carnea 'Lohse's Rubin'
  • Erica carnea 'Loughrigg'
  • Erica carnea 'March Seedling'
  • Erica carnea 'Margery Frearson'
  • Erica carnea 'Martin'
  • Erica carnea 'Myretoun Ruby'
  • Erica carnea 'Nathalie'
  • Erica carnea 'Pink Mist'
  • Erica carnea 'Pink Spangles'
  • Erica carnea 'Pirbright Rose'
  • Erica carnea 'Polden Pride'
  • Erica carnea 'Praecox Rubra'
  • Erica carnea 'Queen Mary'
  • Erica carnea 'Queen of Spain'
  • Erica carnea 'R.B. Cooke'
  • Erica carnea 'Robert Jan'
  • Erica carnea 'Rosalie'
  • Erica carnea 'Rosantha'
  • Erica carnea 'Rosy Morn'
  • Erica carnea 'Rotes Juwel'
  • Erica carnea 'Rubinteppich'
  • Erica carnea 'Scatterley'
  • Erica carnea 'Schatzalp'
  • Erica carnea 'Sherwood Creeping'
  • Erica carnea 'Smart's Heath'
  • Erica carnea 'Springwood Pink'
  • Erica carnea 'Vivellii'
  • Erica carnea 'Walter Reisert'
  • Erica carnea 'Wentwood Red'
  • Erica carnea 'Winter Rubin'
  • Erica carnea 'Wintersonne'
  • Erica erigena f. alba 'W.T. Rackliff'
  • Erica erigena f. aureifolia 'Golden Lady'
  • Erica erigena f. aureifolia 'Thing Nee'
  • Erica erigena 'Irish Dusk'
  • Erica erigena 'Superba'
  • Erica vagans f. alba 'Diana's Gold'
  • Erica vagans f. aureifolia 'Yellow John'
  • Erica vagans 'Keira'
  • Erica × darleyensis 'Archie Graham'
  • Erica × darleyensis 'Arthur Johnson'
  • Erica × darleyensis 'Aurélie Brégeon'
  • Erica × darleyensis 'Darley Dale'
  • Erica × darleyensis 'Epe'
  • Erica × darleyensis f. albiflora 'Ada S. Collings'
  • Erica × darleyensis f. albiflora 'N.R. Webster'
  • Erica × darleyensis f. albiflora 'Silberschmelze'
  • Erica × darleyensis f. albiflora 'White Glow'
  • Erica × darleyensis f. albiflora 'White Perfection'
  • Erica × darleyensis f. aureifolia 'Jack H. Brummage'
  • Erica × darleyensis f. aureifolia 'Mary Helen'
  • Erica × darleyensis f. aureifolia 'Moonshine'
  • Erica × darleyensis f. aureifolia 'Tweety'
  • Erica × darleyensis 'Furzey'
  • Erica × darleyensis 'George Rendall'
  • Erica × darleyensis 'Ghost Hills'
  • Erica × darleyensis 'J.W. Porter'
  • Erica × darleyensis 'James Smith'
  • Erica × darleyensis 'Kramer's Rote'
  • Erica × darleyensis 'W.G. Pine'
  • Erica × oldenburgensis 'Ammerland'
  • Erigeron compositus
  • Erigeron glaucus 'Sea Breeze'
  • Erigeron karvinskianus
  • Erigeron uniflorus
  • Erigeron 'Blue Beauty'
  • Erigeron 'Dunkelste Aller'
  • Erigeron 'Rosa Juwel'
  • Erigeron 'Schneewittchen'
  • Erinus alpinus
  • Erinus alpinus 'Doktor Hähnle'
  • Erinus alpinus var. albus
  • Erodium glandulosum
  • Erodium guttatum (Desf.) Willd.
  • Erodium manescavii
  • Erodium pelargoniiflorum
  • Erodium reichardii
  • Erodium rupestre
  • Erodium × variabile 'Flore Pleno' (d)
  • Erodium × variabile 'Joe Elliott'
  • Erodium × variabile 'Roseum'
  • Erodium × variabile 'William Bishop'
  • Erodium 'County Park'
  • Erodium 'Merstham Pink'
  • Erodium 'Purple Haze'
  • Eruca vesicaria subsp. sativa
  • Eryngium agavifolium
  • Eryngium alpinum
  • Eryngium alpinum 'Superbum'
  • Eryngium bourgatii
  • Eryngium bourgatii Picos Amethyst = 'Mackpam' (PBR)
  • Eryngium bourgatii Graham Stuart Thomas's selection
  • Eryngium giganteum
  • Eryngium maritimum
  • Eryngium planum
  • Eryngium planum 'Blaukappe'
  • Eryngium planum 'Blue Hobbit'
  • Eryngium planum 'Jade Frost' (PBR) (v)
  • Eryngium planum 'Paradise Jackpot' (PBR)
  • Eryngium planum 'Silver Stone'
  • Eryngium planum 'Tetra Petra'
  • Eryngium variifolium
  • Eryngium variifolium 'Miss Marble'
  • Erysimum cheiri 'Harpur Crewe' (d)
  • Erysimum helveticum
  • Erysimum kotschyanum
  • Erysimum linifolium
  • Erysimum Walberton's Fragrant Star = 'Walfrastar' (PBR) (v)
  • Erysimum 'Apricot Twist'
  • Erysimum 'Bowles's Mauve'
  • Erysimum 'Bowles's Purple'
  • Erysimum 'Constant Cheer'
  • Erysimum 'Golden Jubilee'
  • Erysimum 'Moonlight'
  • Erysimum 'Wenlock Beauty'
  • Erythronium 'Pagoda'
  • Escallonia laevis 'Gold Ellen' (v)
  • Escallonia resinosa
  • Escallonia rubra 'Crimson Spire'
  • Escallonia rubra var. macrantha
  • Escallonia rubra 'Woodside'
  • Escallonia × exoniensis
  • Escallonia 'Apple Blossom'
  • Escallonia 'C.F. Ball'
  • Escallonia 'Donard Beauty'
  • Escallonia 'Donard Brilliance'
  • Escallonia 'Donard Radiance'
  • Escallonia 'Donard Seedling'
  • Escallonia 'Edinensis'
  • Escallonia 'Iveyi'
  • Escallonia 'Langleyensis'
  • Escallonia 'Peach Blossom'
  • Escallonia 'Pride of Donard'
  • Escallonia 'Red Dream'
  • Escallonia 'Red Elf'
  • Escallonia 'Red Hedger'
  • Escallonia 'Slieve Donard'
  • Eucomis bicolor
  • Eucomis 'Freckles'
  • Eucryphia milliganii
  • Eucryphia × intermedia
  • Eucryphia × nymansensis
  • Euonymus alatus 'Compactus'
  • Euonymus europaeus
  • Euonymus fortunei Blondy = 'Interbolwi' (v)
  • Euonymus fortunei 'Emerald Gaiety' (v)
  • Euonymus fortunei 'Emerald 'n' Gold' (v)
  • Euonymus fortunei 'Golden Prince' (v)
  • Euonymus fortunei 'Harlequin' (v)
  • Euonymus fortunei 'Silver Queen' (v)
  • Euonymus fortunei 'Sunspot' (v)
  • Euonymus fortunei 'Variegatus' (v)
  • Euonymus japonicus 'Albomarginatus' (v)
  • Euonymus japonicus 'Golden Maiden' (v)
  • Euonymus japonicus 'Microphyllus'
  • Euonymus japonicus 'Microphyllus Albovariegatus' (v)
  • Euonymus japonicus 'Ovatus Aureus' (v)
  • Euonymus nanus var. turkestanicus
  • Eupatorium altissimum
  • Eupatorium fortunei 'Pink Elegance' (v)
  • Eupatorium maculatum Atropurpureum Group
  • Eupatorium purpureum
  • Euphorbia amygdaloides var. robbiae
  • Euphorbia characias
  • Euphorbia characias Silver Swan = 'Wilcott' (PBR) (v)
  • Euphorbia characias 'Glacier Blue' (PBR) (v)
  • Euphorbia characias subsp. characias 'Humpty Dumpty'
  • Euphorbia characias subsp. wulfenii
  • Euphorbia characias subsp. wulfenii 'Jimmy Platt'
  • Euphorbia characias 'Tasmanian Tiger' (PBR) (v)
  • Euphorbia cyparissias
  • Euphorbia cyparissias 'Fens Ruby'
  • Euphorbia griffithii 'Fireglow'
  • Euphorbia lathyris
  • Euphorbia myrsinites
  • Euphorbia palustris 'Zauberflöte'
  • Euphorbia schillingii
  • Euphorbia sikkimensis
  • Euphorbia × martini
  • Euphorbia × martini Tiny Tim = 'Waleutiny'
  • Euphorbia × martini 'Ascot Rainbow' (PBR) (v)
  • Euphorbia × martini 'Baby Charm'
  • Eurybia divaricata
  • Eurybia schreberi
  • Exochorda × macrantha 'The Bride'
  • Fargesia murielae 'Jumbo'
  • Fargesia nitida
  • Fascicularia bicolor
  • Fatsia japonica
  • Festuca glauca Intense Blue = 'Casblue' (PBR)
  • Festuca glauca 'Azurit'
  • Festuca glauca 'Blauglut'
  • Festuca glauca 'Elijah Blue'
  • Festuca glauca Vill.
  • Festuca valesiaca 'Silbersee'
  • Ficaria verna Flore Pleno Group (d)
  • Ficus carica 'Bauern Feige' (F)
  • Ficus carica 'Brown Turkey' (F)
  • Ficus carica 'Brunswick' (F)
  • Ficus carica 'Califfo Blue' (F)
  • Ficus carica 'Celeste' (F)
  • Ficus carica 'Dalmatie' (F)
  • Ficus carica 'Ice Crystal' (F)
  • Ficus carica 'Morena' (F)
  • Ficus carica 'Noire de Caromb' (F)
  • Ficus carica 'Panachée' (F)
  • Ficus carica 'Précoce de Dalmatie' (F)
  • Ficus carica 'Rouge de Bordeaux' (F)
  • Ficus carica 'White Adriatic' (F)
  • Ficus carica 'White Marseilles' (F)
  • Filipendula purpurea
  • Filipendula purpurea 'Elegans'
  • Filipendula rubra 'Venusta'
  • Filipendula ulmaria 'Aurea'
  • Filipendula ulmaria 'Variegata' (v)
  • Filipendula vulgaris 'Multiplex' (d)
  • Foeniculum vulgare
  • Foeniculum vulgare 'Purpureum'
  • Forsythia giraldiana
  • Forsythia suspensa
  • Forsythia × intermedia Minigold = 'Flojor'
  • Forsythia × intermedia 'Lynwood Variety'
  • Forsythia × intermedia 'Variegata' (v)
  • Forsythia 'Arnold Dwarf'
  • Forsythia 'Beatrix Farrand' ambig.
  • Fragaria vesca (F)
  • Francoa sonchifolia
  • Francoa sonchifolia 'Petite Bouquet'
  • Frankenia laevis
  • Fritillaria meleagris
  • Fritillaria michailovskyi
  • Fuchsia magellanica var. gracilis 'Aurea'
  • Fuchsia magellanica var. gracilis 'Versicolor' (v)
  • Fuchsia 'Preston Guild'
  • Fuchsia 'Tom Thumb'
  • Galanthus elwesii
  • Galanthus nivalis
  • Galanthus nivalis f. pleniflorus 'Flore Pleno' (d)
  • Galega bicolor
  • Galega officinalis
  • Galega officinalis 'Alba'
  • Galega × hartlandii 'Lady Wilson'
  • Galium odoratum
  • Galium verum
  • Garrya elliptica 'James Roof' (m)
  • Gaultheria mucronata (m)
  • Gaultheria mucronata 'Crimsonia' (f)
  • Gaultheria mucronata 'Pink Pearl' (f)
  • Gaultheria mucronata 'Wintertime' (f)
  • Gaultheria procumbens
  • Gaultheria shallon
  • Gaultheria × wisleyensis
  • Genista aetnensis
  • Genista hispanica
  • Genista lydia
  • Genista pilosa 'Vancouver Gold'
  • Gentiana acaulis
  • Gentiana asclepiadea
  • Gentiana asclepiadea 'Alba'
  • Gentiana bisetaea
  • Gentiana gracilipes
  • Gentiana lutea
  • Gentiana septemfida
  • Gentiana septemfida var. lagodechiana
  • Gentiana sino-ornata
  • Gentiana sino-ornata 'Brin Form'
  • Geranium cinereum 'Sateene' (PBR)
  • Geranium clarkei (Purple-flowered Group) 'Kashmir Purple'
  • Geranium clarkei 'Kashmir White'
  • Geranium dalmaticum
  • Geranium dalmaticum 'Album'
  • Geranium endressii
  • Geranium himalayense
  • Geranium himalayense 'Plenum' (d)
  • Geranium ibericum ambig.
  • Geranium ibericum subsp. jubatum
  • Geranium ibericum subsp. jubatum 'White Zigana'
  • Geranium macrorrhizum
  • Geranium macrorrhizum 'Czakor'
  • Geranium macrorrhizum 'Ingwersen's Variety'
  • Geranium macrorrhizum 'Variegatum' (v)
  • Geranium macrorrhizum 'White-Ness'
  • Geranium nepalense
  • Geranium nodosum
  • Geranium phaeum
  • Geranium phaeum 'Album'
  • Geranium phaeum 'Lady in Mourning'
  • Geranium phaeum 'Lily Lovell'
  • Geranium phaeum 'Springtime' (PBR)
  • Geranium phaeum var. lividum
  • Geranium phaeum var. phaeum 'Samobor'
  • Geranium pratense
  • 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 psilostemon 'Bressingham Flair'
  • Geranium renardii
  • Geranium renardii 'Tcschelda'
  • Geranium robertianum
  • Geranium robertianum 'Album'
  • Geranium sanguineum
  • Geranium sanguineum 'Canon Miles'
  • Geranium sanguineum 'Glenluce'
  • Geranium sanguineum 'Max Frei'
  • Geranium sanguineum 'New Hampshire Purple'
  • Geranium sanguineum var. striatum
  • Geranium sanguineum 'Vision Violet' (Vision Series)
  • Geranium subcaulescens
  • Geranium subcaulescens 'Splendens'
  • Geranium versicolor
  • Geranium wallichianum 'Buxton's Variety'
  • Geranium wallichianum 'Rise and Shine' (PBR)
  • Geranium × antipodeum (G. sessiliflorum subsp. novae-zelandiae 'Nigricans' × G. traversii var. elegans)
  • Geranium × antipodeum 'Pink Spice' (PBR)
  • Geranium × cantabrigiense
  • Geranium × cantabrigiense 'Biokovo'
  • Geranium × cantabrigiense 'Cambridge'
  • Geranium × cantabrigiense 'Westray' (PBR)
  • Geranium × johnsonii 'Johnson's Blue'
  • Geranium × magnificum
  • Geranium × magnificum 'Blue Blood'
  • Geranium × oxonianum 'A.T. Johnson'
  • Geranium × oxonianum 'Claridge Druce'
  • Geranium × oxonianum f. thurstonianum
  • Geranium × oxonianum f. thurstonianum 'Southcombe Double' (d)
  • Geranium × oxonianum 'Hollywood'
  • Geranium × oxonianum 'Katherine Adele'
  • Geranium × oxonianum 'Lace Time'
  • Geranium × oxonianum 'Wargrave Pink'
  • Geranium × riversleaianum 'Russell Prichard'
  • Geranium (Cinereum Group) 'Alice' (PBR)
  • Geranium (Cinereum Group) 'Ballerina'
  • Geranium (Cinereum Group) 'Laurence Flatman'
  • Geranium (Cinereum Group) 'Purple Pillow'
  • Geranium Blue Sunrise = 'Blogold' (PBR)
  • Geranium Orkney Cherry = 'Bremerry' (PBR)
  • Geranium Patricia = 'Brempat'
  • Geranium Rozanne = 'Gerwat' (PBR)
  • Geranium 'Ann Folkard'
  • Geranium 'Azure Rush'
  • Geranium 'Bertie Crûg'
  • Geranium 'Bob's Blunder'
  • Geranium 'Brookside'
  • Geranium 'Joy'
  • Geranium 'Lakwijk Star'
  • Geranium 'Mavis Simpson'
  • Geranium 'Memories' (PBR)
  • Geranium 'Orion'
  • Geranium 'Pink Penny'
  • Geranium 'Salome'
  • Geranium 'Sandrine' (PBR)
  • Geranium 'Sirak'
  • Geranium 'Tanya Rendall' (PBR)
  • Geranium 'Tiny Monster'
  • Geum coccineum 'Cooky'
  • Geum coccineum 'Eos'
  • Geum coccineum 'Queen of Orange'
  • Geum montanum
  • Geum rivale
  • Geum rivale 'Album'
  • Geum 'Alabama Slammer' (Cocktails Series)
  • Geum 'Blazing Sunset' (d)
  • Geum 'Borisii'
  • Geum 'Fire Storm' (PBR)
  • Geum 'Flames of Passion' (PBR)
  • Geum 'Georgenberg'
  • Geum 'Lady Stratheden' (d)
  • Geum 'Lionel Cox'
  • Geum 'Mai Tai' (PBR) (Cocktails Series)
  • Geum 'Mrs J. Bradshaw' (d)
  • Gillenia trifoliata
  • Ginkgo biloba
  • Ginkgo biloba 'Everton Broom'
  • Ginkgo biloba 'Saratoga' (m)
  • Gladiolus communis subsp. byzantinus
  • Gladiolus murielae
  • Gladiolus papilio Purpureoauratus Group
  • Gladiolus 'Ruby' (papilio hybrid)
  • Glandora prostrata 'Heavenly Blue'
  • Glandularia peruviana
  • Glandularia Seabrook's Lavender = 'Sealav' (PBR)
  • Glandularia 'Homestead Purple'
  • Glandularia 'Sissinghurst'
  • Glebionis coronaria
  • Globularia cordifolia
  • Globularia punctata
  • Globularia trichosantha
  • Gloriosa superba 'Rothschildiana'
  • Glyceria maxima var. variegata (v)
  • Glycyrrhiza glabra
  • Goniolimon tataricum var. angustifolium
  • Griselinia littoralis
  • Griselinia littoralis 'Dixon's Cream' (v)
  • Griselinia littoralis 'Variegata' (v)
  • Gunnera hamiltonii
  • Gunnera magellanica (f)
  • Gunnera manicata
  • Gunnera prorepens
  • Gynostemma pentaphyllum
  • Gypsophila paniculata
  • Gypsophila paniculata 'Compacta Plena' (d)
  • Gypsophila paniculata 'Schneeflocke' (d)
  • Gypsophila repens 'Dubia'
  • Gypsophila repens 'Rosea'
  • Gypsophila 'Rosenschleier' (d)
  • Haberlea rhodopensis
  • Habranthus brachyandrus
  • Haemanthus albiflos
  • Hakonechloa macra 'Alboaurea' (v)
  • Halimium lasianthum subsp. formosum 'Sandling'
  • Hamamelis mollis
  • Hamamelis × intermedia 'Barmstedt Gold'
  • Hamamelis × intermedia 'Jelena'
  • Hamamelis × intermedia 'Pallida'
  • Haplocarpha rueppellii
  • Haplopappus glutinosus
  • Hebe albicans
  • Hebe brachysiphon
  • Hebe macrantha
  • Hebe odora prostrate
  • Hebe pauciramosa
  • Hebe pimeleoides 'Quicksilver'
  • Hebe raoulii
  • Hebe recurva
  • Hebe salicifolia
  • Hebe topiaria 'Doctor Favier'
  • Hebe × andersonii 'Andersonii Variegata' (v)
  • Hebe × franciscana 'Blue Gem' ambig.
  • Hebe × franciscana 'White Gem'
  • Hebe Blue Star = 'Vergeer 1' (PBR)
  • Hebe Garden Beauty Blue = 'Cliv' (PBR) (Garden Beauty Series)
  • Hebe Garden Beauty Pink = 'Lowpito' (Garden Beauty Series)
  • Hebe Purple Shamrock = 'Neprock' (PBR) (v)
  • Hebe 'Baby Marie'
  • Hebe 'Bowles's Hybrid'
  • Hebe 'Caledonia'
  • Hebe 'Carnea Variegata' (v)
  • Hebe 'Champagne'
  • Hebe 'Clear Skies'
  • Hebe 'Conwy Knight'
  • Hebe 'Diamond'
  • Hebe 'First Light' (PBR)
  • Hebe 'Gold Beauty' (v)
  • Hebe 'Great Orme'
  • Hebe 'Imposter'
  • Hebe 'Inspiration'
  • Hebe 'Margret'
  • Hebe 'Marjorie'
  • Hebe 'Midsummer Beauty'
  • Hebe 'Nicola's Blush'
  • Hebe 'Pascal'
  • Hebe 'Pewter Dome'
  • Hebe 'Pink Paradise' (PBR)
  • Hebe 'Pink Pixie'
  • Hebe 'Red Edge'
  • Hebe 'Sapphire'
  • Hebe 'Silver Dollar' (v)
  • Hebe 'Silver Queen' (v)
  • Hebe 'Spender's Seedling' Hort.
  • Hebe 'Wiri Cloud'
  • Hebe 'Wiri Dawn'
  • Hebe 'Youngii'
  • Hedera algeriensis 'Gloire de Marengo' (v)
  • Hedera colchica 'Dentata Variegata' (v)
  • Hedera colchica 'Sulphur Heart' (v)
  • Hedera helix 'Buttercup'
  • Hedera helix Cavendishii Group (v)
  • Hedera helix 'Congesta'
  • Hedera helix 'Conglomerata'
  • Hedera helix 'Glacier' (v)
  • Hedera helix 'Green Ripple'
  • Hedera helix 'Ingrid' (v)
  • Hedera helix 'Ivalace'
  • Hedera helix 'Kolibri' (v)
  • Hedera helix 'Little Diamond' (v)
  • Hedera helix 'Oro di Bogliasco' (v)
  • Hedera helix 'Pedata'
  • Hedera hibernica 'Dealbata' (v)
  • Hedera hibernica 'Lobata Major'
  • Hedychium densiflorum
  • Helenium autumnale 'Fuego' (PBR) (Mariachi Series)
  • Helenium autumnale 'Salsa' (PBR) (Mariachi Series)
  • Helenium autumnale 'Short and Sassy' (PBR)
  • Helenium autumnale 'Siesta' (PBR) (Mariachi Series)
  • Helenium Mardi Gras = 'Helbro'
  • Helenium Pipsqueak = 'Blopip'
  • Helenium 'Can Can'
  • Helenium 'Chelsey'
  • Helenium 'Double Trouble' (PBR)
  • Helenium 'El Dorado'
  • Helenium 'Moerheim Beauty'
  • Helenium 'Poncho'
  • Helenium 'Potter's Wheel'
  • Helenium 'Red Army'
  • Helenium 'Rotgold' Foerster
  • Helenium 'Rubinzwerg'
  • Helenium 'Ruby Thuesday'
  • Helenium 'Sahin's Early Flowerer'
  • Helenium 'Waltraut'
  • Helenium 'Wyndley'
  • Helianthemum apenninum
  • Helianthemum lunulatum
  • Helianthemum nummularium
  • Helianthemum oelandicum
  • Helianthemum 'Amy Baring'
  • Helianthemum 'Ben Afflick'
  • Helianthemum 'Ben Dearg'
  • Helianthemum 'Ben Fhada'
  • Helianthemum 'Ben Heckla'
  • Helianthemum 'Ben Hope'
  • Helianthemum 'Ben Ledi'
  • Helianthemum 'Ben More'
  • Helianthemum 'Ben Nevis'
  • Helianthemum 'Ben Vane'
  • Helianthemum 'Bunbury'
  • Helianthemum 'Butter and Eggs'
  • Helianthemum 'Cerise Queen' (d)
  • Helianthemum 'Chocolate Blotch'
  • Helianthemum 'Cornish Cream'
  • Helianthemum 'Fire Dragon'
  • Helianthemum 'Georgeham'
  • Helianthemum 'Golden Queen'
  • Helianthemum 'Hartswood Ruby'
  • Helianthemum 'Henfield Brilliant'
  • Helianthemum 'Highdown'
  • Helianthemum 'Highdown Apricot'
  • Helianthemum 'Jubilee' (d)
  • Helianthemum 'Lawrenson's Pink'
  • Helianthemum 'Mrs C.W. Earle' (d)
  • Helianthemum 'Mrs Croft'
  • Helianthemum 'Mrs Moules'
  • Helianthemum 'Old Gold'
  • Helianthemum 'Pink Angel' (d)
  • Helianthemum 'Praecox'
  • Helianthemum 'Prostrate Orange'
  • Helianthemum 'Raspberry Ripple'
  • Helianthemum 'Razzle Dazzle' (v)
  • Helianthemum 'Rhodanthe Carneum'
  • Helianthemum 'Rose of Leeswood' (d)
  • Helianthemum 'Roxburgh Gold'
  • Helianthemum 'Saint John's College Yellow'
  • Helianthemum 'Salmon Queen'
  • Helianthemum 'Shot Silk'
  • Helianthemum 'Sterntaler'
  • Helianthemum 'Sudbury Gem'
  • Helianthemum 'Sulphur Moon'
  • Helianthemum 'Sunbeam'
  • Helianthemum 'Supreme'
  • Helianthemum 'The Bride'
  • Helianthemum 'Wisley Primrose'
  • Helianthus 'Happy Days'
  • Helianthus 'Lemon Queen'
  • Helianthus 'Soleil d'Or'
  • Helichrysum amorginum Ruby Cluster = 'Blorub' (PBR)
  • Helichrysum italicum
  • Helichrysum italicum 'Dartington'
  • Helichrysum italicum 'Korma' (PBR)
  • Helichrysum italicum subsp. serotinum
  • Helichrysum microphyllum ambig.
  • Helichrysum milfordiae
  • Helichrysum thianschanicum
  • Heliopsis helianthoides var. scabra 'Burning Hearts'
  • Heliopsis helianthoides var. scabra 'Sommersonne'
  • Heliopsis helianthoides var. scabra 'Venus'
  • Helleborus argutifolius
  • Helleborus foetidus
  • Helleborus lividus
  • Helleborus lividus 'Purple Rose'
  • Helleborus niger
  • Helleborus niger 'HGC Jacob' (PBR)
  • Helleborus niger 'HGC Josef Lemper' (PBR)
  • Helleborus orientalis Lam. subsp. abchasicus (A. Braun) B. Mathew Early Purple Group
  • Helleborus viridis
  • Helleborus × ericsmithii 'Bob's Best'
  • Helleborus × ericsmithii 'Winter Moonbeam' (PBR)
  • Helleborus × ericsmithii 'Winter Sunshine' (PBR)
  • Helleborus × hybridus
  • Helleborus × hybridus Ashwood Garden hybrids
  • Helleborus × hybridus 'Harvington Blush Picotee'
  • Helleborus × hybridus 'Mrs Betty Ranicar' (d)
  • Helleborus × hybridus 'Tutu' (PBR)
  • Helleborus × sahinii 'Winterbells' (PBR)
  • Helleborus × sternii 'Silver Dollar'
  • Hemerocallis fulva
  • Hemerocallis fulva 'Flore Pleno' (d)
  • Hemerocallis lilioasphodelus
  • Hemerocallis minor
  • Hemerocallis Golden Zebra = 'Malja' (PBR) (v)
  • Hemerocallis 'Bali Hai'
  • Hemerocallis 'Black Knight'
  • Hemerocallis 'Burning Daylight'
  • Hemerocallis 'Cartwheels'
  • Hemerocallis 'Chicago Royal Robe'
  • Hemerocallis 'Croesus'
  • Hemerocallis 'Double Cutie' (d)
  • Hemerocallis 'Eenie Weenie'
  • Hemerocallis 'Frans Hals'
  • Hemerocallis 'Giant Moon'
  • Hemerocallis 'Grape Velvet'
  • Hemerocallis 'Happy Returns'
  • Hemerocallis 'Joan Senior'
  • Hemerocallis 'Little Wine Cup'
  • Hemerocallis 'Longfields Pride'
  • Hemerocallis 'Moonlit Masquerade'
  • Hemerocallis 'Pink Lady'
  • Hemerocallis 'Raspberry Candy'
  • Hemerocallis 'Sammy Russell'
  • Hemerocallis 'Stella de Oro'
  • Hepatica nobilis
  • Hesperantha coccinea f. alba
  • Hesperantha coccinea 'Fenland Daybreak'
  • Hesperantha coccinea 'Jennifer'
  • Hesperantha coccinea 'Maiden's Blush'
  • Hesperantha coccinea 'Major'
  • Hesperantha coccinea 'Mollie Gould'
  • Hesperantha coccinea 'Mrs Hegarty'
  • Hesperantha coccinea 'Wilfred H. Bryant'
  • Hesperis matronalis
  • Heuchera americana 'Ring of Fire'
  • Heuchera micrantha
  • Heuchera pulchella
  • Heuchera sanguinea 'Ruby Bells'
  • Heuchera sanguinea 'Snow Storm' (v)
  • Heuchera sanguinea 'White Cloud' (v)
  • Heuchera villosa 'Palace Purple'
  • Heuchera Ebony and Ivory = 'E and I' (PBR)
  • Heuchera Key Lime Pie = 'Tnheu042' (PBR) (Dolce Series)
  • Heuchera Bressingham hybrids
  • Heuchera 'Chocolate Ruffles' (PBR)
  • Heuchera 'Crimson Curls'
  • Heuchera 'Leuchtkäfer'
  • Heuchera 'Plum Pudding' (PBR)
  • Hibiscus syriacus 'Oiseau Bleu'
  • Hibiscus syriacus 'Red Heart'
  • Hibiscus syriacus 'Woodbridge'
  • Holcus mollis 'Albovariegatus' (v)
  • Horminum pyrenaicum
  • Hosta fortunei var. albopicta (v)
  • Hosta fortunei var. albopicta f. aurea
  • Hosta lancifolia
  • Hosta sieboldiana
  • Hosta sieboldiana var. elegans
  • Hosta tokudama f. aureo-nebulosa (v)
  • Hosta undulata var. albomarginata (v)
  • Hosta undulata var. univittata (v)
  • Hosta (Tardiana Group) 'June' (PBR) (v)
  • Hosta 'August Moon'
  • Hosta 'Blue Cup' (sieboldiana)
  • Hosta 'Chinese Sunrise' (v)
  • Hosta 'Fire and Ice' (v)
  • Hosta 'Francee' (fortunei) (v)
  • Hosta 'Frances Williams' (sieboldiana) (v)
  • Hosta 'Gold Standard' (fortunei) (v)
  • Hosta 'Golden Scepter'
  • Hosta 'Golden Tiara' (v)
  • Hosta 'Patriot' (v)
  • Hosta 'Praying Hands' (v)
  • Hosta 'Royal Standard'
  • Hosta 'Wide Brim' (v)
  • Hosta 'Zounds'
  • Houttuynia cordata 'Chameleon' (v)
  • Houttuynia cordata 'Flore Pleno' (d)
  • Humulus lupulus
  • Humulus lupulus 'Aureus'
  • Humulus lupulus 'Golden Tassels' (f)
  • Hyacinthoides non-scripta
  • Hyacinthoides non-scripta 'Alba'
  • Hydrangea anomala subsp. petiolaris
  • Hydrangea anomala subsp. petiolaris 'Mirranda' (v)
  • Hydrangea anomala subsp. petiolaris 'Silver Lining' (PBR)
  • Hydrangea aspera Villosa Group
  • Hydrangea macrophylla Goldrush = 'Nehyosh' (L/v)
  • Hydrangea macrophylla 'Altona' (H)
  • Hydrangea macrophylla 'Ami Pasquier' (H)
  • Hydrangea macrophylla 'Ayesha' (H)
  • Hydrangea macrophylla 'Blauer Prinz' (H)
  • Hydrangea macrophylla 'Lanarth White' (L)
  • Hydrangea macrophylla 'Möwe' (Teller Series) (L)
  • Hydrangea macrophylla 'Madame Emile Mouillère' (H)
  • Hydrangea macrophylla 'Mariesii Grandiflora' (L)
  • Hydrangea macrophylla 'Pia' (H)
  • Hydrangea macrophylla 'Quadricolor' (L/v)
  • Hydrangea macrophylla 'Radiant' (H)
  • Hydrangea paniculata Vanille Fraise = 'Renhy' (PBR)
  • Hydrangea paniculata 'Limelight' (PBR)
  • Hydrangea paniculata 'Tardiva'
  • Hydrangea quercifolia
  • Hydrangea serrata 'Miyama-yae-murasaki' (L/d)
  • Hylotelephium cauticola
  • Hylotelephium erythrostictum 'Frosty Morn' (v)
  • Hylotelephium ewersii var. homophyllum 'Rosenteppich'
  • Hylotelephium pluricaule
  • Hylotelephium sieboldii
  • Hylotelephium spectabile
  • Hylotelephium spectabile (Brilliant Group) 'Hot Stuff'
  • Hylotelephium spectabile Brilliant Group
  • Hylotelephium spectabile 'Stardust'
  • Hylotelephium telephium
  • Hylotelephium telephium (Atropurpureum Group) 'Picolette'
  • Hylotelephium telephium (Atropurpureum Group) 'Xenox' (PBR)
  • Hylotelephium telephium 'Moonlight Serenade' (PBR)
  • Hylotelephium telephium subsp. maximum 'Gooseberry Fool'
  • Hylotelephium telephium subsp. ruprechtii 'Hab Gray'
  • Hylotelephium (Herbstfreude Group) 'Elsie's Gold' (v)
  • Hylotelephium (Herbstfreude Group) 'Herbstfreude'
  • Hylotelephium 'Bertram Anderson'
  • Hylotelephium 'Carl'
  • Hylotelephium 'Chocolate Drop' (PBR)
  • Hylotelephium 'Class Act' (PBR)
  • Hylotelephium 'Frosted Fire'
  • Hylotelephium 'José Aubergine' (PBR)
  • Hylotelephium 'Joyce Henderson'
  • Hylotelephium 'Matrona'
  • Hylotelephium 'Mr Goodbud' (PBR)
  • Hylotelephium 'Munstead Red'
  • Hylotelephium 'Pool Party' (PBR) (Party Hardy Series)
  • Hylotelephium 'Thundercloud' (PBR)
  • Hylotelephium 'Vera Jameson'
  • Hymenoxys hoopesii
  • Hypericum calycinum
  • Hypericum cerastioides
  • Hypericum coris
  • Hypericum henryi
  • Hypericum olympicum
  • Hypericum olympicum f. minus
  • Hypericum olympicum f. minus 'Sulphureum'
  • Hypericum perforatum
  • Hypericum × hidcoteense 'Hidcote'
  • Hypericum × hidcoteense 'Hidcote Variegated' (v)
  • Hypericum × moserianum
  • Hypericum Miracle Attraction = 'Alldiablo' (PBR) (Miracle Series)
  • Hyssopus officinalis
  • Hyssopus officinalis f. albus
  • Iberis gibraltarica
  • Iberis saxatilis
  • Iberis sempervirens
  • Iberis sempervirens 'Appen-Etz'
  • Iberis sempervirens 'Fischbeck'
  • Iberis sempervirens 'Golden Candy'
  • Iberis sempervirens 'Snowflake'
  • Iberis sempervirens 'Weisser Zwerg'
  • Iberis 'Snowball'
  • Ilex aquifolium 'Argentea Marginata' (f/v)
  • Ilex aquifolium 'Argentea Marginata Pendula' (f/v)
  • Ilex aquifolium 'Bacciflava' (f)
  • Ilex aquifolium 'Ferox Argentea' (m/v)
  • Ilex aquifolium 'Golden Queen' (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 'Pyramidalis' (f)
  • Ilex × altaclerensis 'Golden King' (f/v)
  • Ilex × altaclerensis 'Lawsoniana' (f/v)
  • Ilex × meserveae Blue Angel = 'Conang' (f)
  • Impatiens niamniamensis 'Congo Cockatoo'
  • Imperata cylindrica 'Rubra'
  • Incarvillea delavayi
  • Incarvillea mairei
  • Indigofera bungeana
  • Inula helenium
  • Inula magnifica
  • Inula orientalis
  • Inula racemosa
  • Ipheion uniflorum
  • Ipheion uniflorum 'Charlotte Bishop'
  • Ipheion uniflorum 'Froyle Mill'
  • Ipheion uniflorum 'Wisley Blue'
  • Ipheion 'Alberto Castillo'
  • Ipheion 'Rolf Fiedler'
  • Iris bulleyana
  • Iris confusa 'Martyn Rix'
  • Iris domestica
  • Iris ensata
  • Iris ensata 'Freckled Geisha'
  • Iris ensata 'Gusto'
  • Iris ensata 'Innocence'
  • Iris ensata 'Moonlight Waves'
  • Iris ensata 'Rose Queen'
  • Iris ensata 'Sensation'
  • Iris ensata 'Variegata' (v)
  • Iris foetidissima
  • Iris hookeri
  • Iris innominata
  • Iris laevigata
  • Iris laevigata var. alba
  • Iris lazica
  • Iris pallida
  • Iris pallida 'Argentea Variegata' (TB/v)
  • Iris pallida Lam. 'Variegata' Hort. (v)
  • Iris pseudacorus 'Alba'
  • Iris pseudacorus 'Flore Pleno' (d)
  • Iris pseudacorus 'Variegata' (v)
  • Iris pumila 'Violacea' (MDB)
  • Iris tectorum 'Variegata' (v)
  • Iris unguicularis
  • Iris versicolor
  • Iris versicolor 'Kermesina'
  • Iris 'Amethyst Flame' (TB)
  • Iris 'Apricorange' (TB)
  • Iris 'Autumn Encore' (TB)
  • Iris 'Benton Dierdre' (TB)
  • Iris 'Black Swan' (TB)
  • Iris 'Blue Shimmer' (TB)
  • Iris 'Braithwaite' (TB)
  • Iris 'Brighteyes' (IB)
  • Iris 'Buttermere' (TB)
  • Iris 'Caesar' (Sib)
  • Iris 'Cascade Sprite' (SDB)
  • Iris 'Cliffs of Dover' (TB)
  • Iris 'Cloudcap' (TB)
  • Iris 'Derwentwater' (TB)
  • Iris 'Dusky Challenger' (TB)
  • Iris 'Echo de France' (TB)
  • Iris 'Eleanor's Pride' (TB)
  • Iris 'English Cottage' (TB)
  • Iris 'Ennerdale' (TB)
  • Iris 'Florentina' (IB/TB)
  • Iris 'Golden Alps' (TB)
  • Iris 'Granada Gold' (TB)
  • Iris 'Holy Night' (TB)
  • Iris 'Immortality' (TB)
  • Iris 'Jane Phillips' (TB)
  • Iris 'Kent Pride' (TB)
  • Iris 'Lemon Flare' (SDB)
  • Iris 'Limelight' (TB)
  • Iris 'Little Shadow' (IB)
  • Iris 'Lodore' (TB)
  • Iris 'Loop the Loop' (TB)
  • Iris 'Marjorie' (TB)
  • Iris 'Party Dress' (TB)
  • Iris 'Perry's Blue' (Sib)
  • Iris 'Pink Lavender' (TB)
  • Iris 'Pogo' (SDB)
  • Iris 'Red Orchid' (IB)
  • Iris 'Shurton Inn' (TB)
  • Iris 'Sibirica Alba' (Sib)
  • Iris 'Staten Island' (TB)
  • Iris 'Swazi Princess' (TB)
  • Iris 'Sweet Musette' (TB)
  • Iris 'Tarn Hows' (TB)
  • Iris 'Thornbird' (TB)
  • Iris 'Titan's Glory' (TB)
  • Iris 'Top Flight' (TB)
  • Iris 'Total Eclipse' (TB)
  • Iris 'White City' (TB)
  • Iris 'White Swirl' (Sib)
  • Isatis tinctoria
  • Isotoma axillaris 'Fairy Carpet'
  • Itea ilicifolia
  • Itea virginica 'Henry's Garnet'
  • Jasione heldreichii
  • Jasione laevis
  • Jasione montana
  • Jasminum beesianum
  • Jasminum humile 'Revolutum'
  • Jasminum nudiflorum
  • Jasminum nudiflorum 'Aureum'
  • Jasminum officinale 'Aureum' (v)
  • Jasminum officinale f. affine
  • Jasminum polyanthum
  • Jasminum × stephanense
  • Jovibarba allionii
  • Jovibarba allionii 'Oki'
  • Jovibarba heuffelii 'Angel Wings'
  • Jovibarba heuffelii 'Serenade'
  • Jovibarba heuffelii var. glabra from Treska Gorge, Macedonia
  • Jovibarba hirta 'Belansky Tatra'
  • Jovibarba hirta from Wintergraben, Austria
  • Jovibarba hirta var. neilreichii
  • Juniperus chinensis 'Expansa Aureospicata' (v)
  • Juniperus communis 'Hornibrookii'
  • Juniperus recurva var. coxii
  • Juniperus scopulorum 'Blue Arrow'
  • Juniperus scopulorum 'Skyrocket'
  • Juniperus 'Grey Owl'
  • Kalimeris incisa 'Alba'
  • Kalimeris incisa 'Madiva'
  • Kalimeris incisa 'Nana Blue'
  • Kalimeris yomena 'Shogun' (v)
  • Kalimeris 'Mon Jardin'
  • Kerria japonica 'Golden Guinea'
  • Kerria japonica 'Picta' (v)
  • Kerria japonica 'Pleniflora' (d)
  • Kerria japonica 'Simplex'
  • Kirengeshoma palmata
  • Knautia arvensis
  • Knautia macedonica
  • Knautia macedonica Melton pastels
  • Knautia macedonica pink-flowered
  • Knautia macedonica 'Red Knight'
  • Knautia macedonica 'Thunder and Lightning' (PBR) (v)
  • Kniphofia galpinii ambig.
  • Kniphofia hirsuta
  • Kniphofia triangularis subsp. triangularis
  • Kniphofia uvaria
  • Kniphofia 'Bees' Lemon'
  • Kniphofia 'Bressingham Comet'
  • Kniphofia 'Flamenco'
  • Kniphofia 'Green Jade'
  • Kniphofia 'Ice Queen'
  • Kniphofia 'Jenny Bloom'
  • Kniphofia 'John Benary'
  • Kniphofia 'Lemon Popsicle' (PBR) (Popsicle Series)
  • Kniphofia 'Little Maid'
  • Kniphofia 'Mango Popsicle' (PBR) (Popsicle Series)
  • Kniphofia 'Nancy's Red'
  • Kniphofia 'Nobilis'
  • Kniphofia 'Papaya Popsicle' (PBR) (Popsicle Series)
  • Kniphofia 'Percy's Pride'
  • Kniphofia 'Pfitzeri'
  • Kniphofia 'Pineapple Popsicle' (PBR) (Popsicle Series)
  • Kniphofia 'Royal Castle'
  • Kniphofia 'Sunningdale Yellow'
  • Kniphofia 'Tawny King'
  • Kniphofia 'Timothy'
  • Kniphofia 'Tuckii' misapplied
  • Kolkwitzia amabilis
  • Kolkwitzia amabilis 'Pink Cloud'
  • Laburnum anagyroides
  • Lamium galeobdolon
  • Lamium galeobdolon 'Hermann's Pride'
  • Lamium maculatum
  • Lamium maculatum 'Album'
  • Lamium maculatum 'Beacon Silver'
  • Lamium maculatum 'Ghost'
  • Lamium maculatum 'Golden Wedding'
  • Lamium maculatum 'Margery Fish'
  • Lamium maculatum 'Pink Pewter'
  • Lamium maculatum 'White Nancy'
  • Lamium orvala
  • Lampranthus spectabilis 'Tresco Brilliant'
  • Lampranthus spectabilis 'Tresco Fire'
  • Lampranthus 'Pink'
  • Lamprocapnos spectabilis
  • Lamprocapnos spectabilis Valentine = 'Hordival' (PBR)
  • Lamprocapnos spectabilis 'Alba'
  • Lamprocapnos spectabilis 'Gold Heart' (PBR)
  • Lathyrus latifolius
  • Lathyrus latifolius 'Albus'
  • Lathyrus latifolius 'Red Pearl'
  • Lathyrus latifolius 'White Pearl'
  • Lathyrus nervosus
  • Lathyrus vernus
  • Lathyrus vernus 'Alboroseus'
  • Lathyrus vernus var. albus
  • Laurus nobilis
  • Laurus nobilis variegated (v)
  • Lavandula angustifolia Blue Cushion = 'Schola'
  • Lavandula angustifolia Little Lady = 'Batlad'
  • Lavandula angustifolia Melissa Lilac = 'Dow4' (PBR)
  • Lavandula angustifolia Miss Muffet = 'Scholmis'
  • Lavandula angustifolia 'Arctic Snow'
  • Lavandula angustifolia 'Ashdown Forest'
  • Lavandula angustifolia 'Cedar Blue'
  • Lavandula angustifolia 'Dwarf Blue'
  • Lavandula angustifolia 'Ellagance Ice' (Ellagance Series)
  • Lavandula angustifolia 'Ellagance Purple' (Ellagance Series)
  • Lavandula angustifolia 'Ellagance Sky' (Ellagance Series)
  • Lavandula angustifolia 'Folgate'
  • Lavandula angustifolia 'Hidcote'
  • Lavandula angustifolia 'Hidcote Pink'
  • Lavandula angustifolia 'Imperial Gem'
  • Lavandula angustifolia 'Loddon Blue'
  • Lavandula angustifolia 'Loddon Pink'
  • Lavandula angustifolia 'Maillette'
  • Lavandula angustifolia 'Munstead'
  • Lavandula angustifolia 'Nana Alba'
  • Lavandula angustifolia 'Rosea'
  • Lavandula angustifolia 'Silver Mist'
  • Lavandula angustifolia 'Thumbelina Leigh' (PBR)
  • Lavandula angustifolia 'Twickel Purple'
  • Lavandula dentata
  • Lavandula dentata var. candicans
  • Lavandula lanata
  • Lavandula pedunculata subsp. pedunculata
  • Lavandula stoechas 'Antibes' (Provençal Series)
  • Lavandula stoechas 'Purley'
  • Lavandula stoechas subsp. stoechas f. rosea 'Kew Red'
  • Lavandula viridis
  • Lavandula × chaytoriae 'Richard Gray'
  • Lavandula × chaytoriae 'Sawyers'
  • Lavandula × ginginsii 'Goodwin Creek Grey'
  • Lavandula × intermedia Walberton's Silver Edge = 'Walvera' (v)
  • Lavandula × intermedia 'Arabian Night' ambig.
  • Lavandula × intermedia Dutch Group
  • Lavandula × intermedia 'Edelweiss'
  • Lavandula × intermedia 'Fragrant Memories'
  • Lavandula × intermedia 'Grey Hedge'
  • Lavandula × intermedia 'Grosso'
  • Lavandula × intermedia 'Lullingstone Castle'
  • Lavandula × intermedia 'Old English'
  • Lavandula × intermedia 'Pale Pretender'
  • Lavandula × intermedia 'Provence'
  • Lavandula × intermedia 'Seal'
  • Lavandula Tiara = 'Fair 10' (PBR)
  • Lavandula 'Devonshire Compact'
  • Lavandula 'Regal Splendour' (PBR)
  • Lavatera maritima
  • Lavatera olbia
  • Lavatera × clementii 'Barnsley'
  • Lavatera × clementii 'Kew Rose'
  • Leontopodium nivale subsp. alpinum
  • Leonurus cardiaca
  • Leptinella potentillina
  • Leucanthemum × superbum Broadway Lights = 'Leumayel' (PBR)
  • Leucanthemum × superbum 'Aglaia' (d)
  • Leucanthemum × superbum 'Beauté Nivelloise'
  • Leucanthemum × superbum 'Esther Read' (d)
  • Leucanthemum × superbum 'Everest'
  • Leucanthemum × superbum 'Goldfinch' (PBR)
  • Leucanthemum × superbum 'Goldrausch' (PBR)
  • Leucanthemum × superbum 'Shapcott Gossamer'
  • Leucanthemum × superbum 'Silberprinzesschen'
  • Leucanthemum × superbum 'Snow Lady'
  • Leucanthemum × superbum 'Sonnenschein'
  • Leucanthemum × superbum 'Starburst' (d)
  • Leucanthemum × superbum 'Wirral Supreme' (d)
  • Leucanthemum 'Real Charmer' (PBR) (Realflor Series)
  • Leucanthemum 'Sunshine Peach'
  • Leucojum aestivum
  • Leucojum vernum
  • Leucothoe fontanesiana 'Rainbow' (v)
  • Leucothoe fontanesiana 'Rollissonii'
  • Levisticum officinale
  • Lewisia cotyledon Ashwood strain
  • Leycesteria formosa
  • Leycesteria formosa Golden Lanterns = 'Notbruce' (PBR)
  • Leymus arenarius
  • Liatris pycnostachya
  • Liatris spicata
  • Liatris spicata 'Floristan Weiss'
  • Liatris spicata 'Kobold'
  • Libertia chilensis
  • Libertia chilensis Formosa Group
  • Ligularia dentata
  • Ligularia dentata 'Desdemona'
  • Ligularia dentata 'Othello'
  • Ligularia przewalskii
  • Ligularia 'Britt Marie Crawford' (PBR)
  • Ligusticum scoticum
  • Ligustrum ovalifolium
  • Ligustrum ovalifolium 'Aureum' (v)
  • Ligustrum ovalifolium 'Lemon and Lime' (v)
  • Lilium candidum (IXb/a)
  • Lilium formosanum var. pricei (IXb/a)
  • Lilium martagon (IXc/d)
  • Lilium martagon var. album (IXc/d)
  • Lilium regale (IXb/a)
  • Lilium speciosum var. rubrum (IXb-c/d)
  • Lilium African Queen Group (VI-/a)
  • Lilium 'Fire King' (Ib/d)
  • Limonium platyphyllum
  • Limonium platyphyllum 'Blue Cloud'
  • Linaria alpina
  • Linaria purpurea
  • Linaria purpurea 'Canon Went'
  • Linaria vulgaris
  • Linum flavum 'Compactum'
  • Lippia dulcis
  • Liriope muscari
  • Lobelia cardinalis
  • Lobelia cardinalis 'Chocolate Truffle' (PBR)
  • Lobelia cardinalis 'Queen Victoria'
  • Lobelia laxiflora var. angustifolia
  • Lobelia siphilitica
  • Lobelia siphilitica f. albiflora 'Alba'
  • Lobelia × speciosa 'Fan Tiefrot' (Fan Series)
  • Lobelia × speciosa 'Fan Zinnoberrosa' (Fan Series)
  • Lobelia × speciosa 'Hadspen Purple' (PBR)
  • Lobelia × speciosa 'Tania'
  • Lobelia × speciosa 'Vedrariensis'
  • Lonicera caerulea
  • Lonicera fragrantissima
  • Lonicera henryi
  • Lonicera henryi 'Copper Beauty' (PBR)
  • Lonicera japonica 'Aureoreticulata' (v)
  • Lonicera japonica 'Dart's World'
  • Lonicera japonica 'Halliana'
  • Lonicera japonica 'Mint Crisp' (PBR) (v)
  • Lonicera japonica 'Princess Kate'
  • Lonicera japonica var. repens
  • Lonicera ligustrina 'Lemon Beauty' (v)
  • Lonicera ligustrina var. pileata
  • Lonicera ligustrina var. yunnanensis 'Baggesen's Gold'
  • Lonicera ligustrina var. yunnanensis 'Red Tips'
  • Lonicera ligustrina var. yunnanensis 'Silver Beauty' (v)
  • Lonicera periclymenum 'Belgica'
  • Lonicera periclymenum 'Graham Thomas'
  • Lonicera periclymenum 'Serotina'
  • Lonicera periclymenum 'Winchester'
  • Lonicera similis var. delavayi
  • Lonicera standishii var. lancifolia 'Budapest'
  • Lonicera × americana (Mill.) K. Koch
  • Lonicera × heckrottii 'Gold Flame' hort.
  • Lonicera × italica Harlequin = 'Sherlite' (v)
  • Lonicera × purpusii
  • Lonicera × purpusii 'Winter Beauty'
  • Lonicera × tellmanniana
  • Lotus corniculatus
  • Luma apiculata
  • Luma apiculata 'Glanleam Gold' (v)
  • Lupinus arboreus
  • Lupinus arboreus blue-flowered
  • Lupinus × regalis Russell Group
  • Lupinus 'Gallery Pink' (Gallery Series)
  • Lupinus Minarette Group
  • Lupinus 'The Governor' (Band of Nobles Series)
  • Luzula nivea
  • Lychnis chalcedonica
  • Lychnis chalcedonica 'Salmonea'
  • Lychnis coronaria
  • Lychnis coronaria 'Alba'
  • Lychnis flos-cuculi
  • Lychnis flos-cuculi 'Petite Jenny' (d)
  • Lychnis flos-cuculi 'White Robin'
  • Lychnis flos-jovis
  • Lychnis viscaria subsp. atropurpurea
  • Lychnis × arkwrightii 'Vesuvius'
  • Lychnis × haageana
  • Lychnis 'Molten Lava'
  • Lysimachia ciliata 'Firecracker'
  • Lysimachia clethroides 'Lady Jane'
  • Lysimachia ephemerum
  • Lysimachia nummularia 'Aurea'
  • Lysimachia punctata 'Alexander' (v)
  • Lysimachia punctata L.
  • Lythrum salicaria
  • Lythrum salicaria 'Blush'
  • Lythrum salicaria 'Robert'
  • Lythrum salicaria 'The Beacon'
  • Lythrum virgatum 'Rosy Gem'
  • Macleaya cordata (Willd.) R. Br.
  • Magnolia grandiflora 'Exmouth'
  • Magnolia stellata
  • Magnolia × loebneri 'Leonard Messel'
  • Magnolia × soulangeana 'Lennei'
  • Magnolia × soulangeana 'Rustica Rubra'
  • Magnolia 'Butterflies'
  • Magnolia 'Elizabeth'
  • Magnolia 'Raspberry Ice'
  • Magnolia 'Sunburst'
  • Magnolia 'Susan'
  • Mahonia aquifolium 'Apollo'
  • Mahonia japonica
  • Mahonia × media 'Buckland'
  • Mahonia × media 'Charity'
  • Mahonia × media 'Winter Sun'
  • Maianthemum bifolium
  • Maianthemum racemosum
  • Malotigena frantiskae-niederlovae 'Gold Nugget'
  • Malus domestica 'Bramley's Seedling' (C)
  • Malus domestica 'Cox's Orange Pippin' (D)
  • Malus domestica 'Egremont Russet' (D)
  • Malus domestica 'Ellison's Orange' (D)
  • Malus domestica 'Exquisite' (D)
  • Malus domestica 'Fiesta' (D)
  • Malus domestica 'James Grieve' (D)
  • Malus domestica 'Katja' (D)
  • Malus domestica 'Laxton's Superb' (D)
  • Malus domestica 'Newton Wonder' (C)
  • Malus domestica 'Tydeman's Early Worcester' (D)
  • Malus domestica 'Winston' (D)
  • Malus tschonoskii
  • Malus × floribunda
  • Malus × moerlandsii 'Profusion'
  • Malus × robusta
  • Malus × scheideckeri 'Red Jade'
  • Malus × zumi 'Golden Hornet'
  • Malus 'Butterball'
  • Malus 'Cheal's Weeping'
  • Malus 'Evereste'
  • Malus 'Gardener's Gold'
  • Malus 'John Downie' (C)
  • Malus 'Sun Rival'
  • Malus 'Wisley Crab'
  • Malva alcea var. fastigiata
  • Malva moschata
  • Malva moschata f. alba
  • Malva sylvestris
  • Malva sylvestris 'Blue Fountain' (PBR)
  • Marrubium bourgaei var. bourgaei 'All Hallows Green'
  • Marrubium vulgare
  • Matteuccia struthiopteris
  • Melissa officinalis
  • Melissa officinalis 'All Gold'
  • Melissa officinalis 'Aurea' (v)
  • Mentha aquatica
  • Mentha arvensis 'Banana'
  • Mentha arvensis 'Thai'
  • Mentha arvensis var. piperascens
  • Mentha cervina
  • Mentha longifolia
  • Mentha longifolia silver-leaved
  • Mentha longifolia subsp. schimperi
  • Mentha longifolia 'Variegata' (v)
  • Mentha pulegium
  • Mentha pulegium 'Upright'
  • Mentha requienii
  • Mentha spicata
  • Mentha spicata 'Guernsey'
  • Mentha spicata 'Newbourne'
  • Mentha spicata 'Spanish'
  • Mentha spicata 'Tashkent'
  • Mentha spicata var. crispa
  • Mentha spicata var. crispa 'Moroccan'
  • Mentha suaveolens
  • Mentha suaveolens subsp. timija
  • Mentha suaveolens 'Variegata' (v)
  • Mentha × gracilis
  • Mentha × piperita black peppermint
  • Mentha × piperita f. citrata
  • Mentha × piperita f. citrata 'Basil'
  • Mentha × piperita f. citrata 'Bergamot'
  • Mentha × piperita f. citrata 'Chocolate'
  • Mentha × piperita f. citrata 'Grapefruit'
  • Mentha × piperita f. citrata 'Lime'
  • Mentha × piperita f. citrata 'Orange'
  • Mentha × piperita 'Multimentha'
  • Mentha × piperita 'Swiss'
  • Mentha × smithiana
  • Mentha × villosa var. alopecuroides Bowles's mint
  • Mentha 'Berries and Cream'
  • Mentha 'Hillary's Sweet Lemon'
  • Mentha lavender mint
  • Mentha Nile Valley mint
  • Mentha 'Strawberry Mint'
  • Mentha 'Sweet Pear'
  • Mertensia maritima
  • Mertensia virginica
  • Micromeria
  • Mimulus aurantiacus
  • Mimulus lewisii
  • Mimulus ringens
  • Mirabilis jalapa
  • Miscanthus flavidus
  • Miscanthus nepalensis
  • Miscanthus sinensis 'Adagio'
  • Miscanthus sinensis 'China'
  • Miscanthus sinensis 'Ferner Osten'
  • Miscanthus sinensis 'Flamingo'
  • Miscanthus sinensis 'Ghana'
  • Miscanthus sinensis 'Gnome'
  • Miscanthus sinensis 'Gracillimus'
  • Miscanthus sinensis 'Graziella'
  • Miscanthus sinensis 'Kleine Silberspinne'
  • Miscanthus sinensis 'Little Kitten'
  • Miscanthus sinensis 'Little Zebra' (PBR) (v)
  • Miscanthus sinensis 'Malepartus'
  • Miscanthus sinensis 'Morning Light' (v)
  • Miscanthus sinensis 'Pünktchen' (v)
  • Miscanthus sinensis 'Rotsilber'
  • Miscanthus sinensis 'Strictus' (v)
  • Miscanthus sinensis 'Variegatus' (v)
  • Miscanthus sinensis 'Yakushima Dwarf'
  • Miscanthus sinensis 'Zebrinus' (v)
  • Modiolastrum lateritium
  • Molinia caerulea subsp. caerulea 'Variegata' (v)
  • Monarda citriodora
  • Monarda didyma
  • Monarda fistulosa
  • Monarda menthifolia
  • Monarda 'Beauty of Cobham'
  • Monarda 'Cambridge Scarlet'
  • Monarda 'Jacob Cline'
  • Monarda 'Prärienacht'
  • Monarda 'Schneewittchen'
  • Muhlenbergia mexicana
  • Muscari armeniacum
  • Muscari botryoides 'Album'
  • Myosotis scorpioides
  • Myosotis scorpioides 'Mermaid'
  • Myrrhis odorata
  • Myrtus communis
  • Myrtus communis 'Pyewood Park'
  • Myrtus communis subsp. tarentina
  • Myrtus communis subsp. tarentina 'Microphylla Variegata' (v)
  • Nandina domestica 'Fire Power'
  • Narcissus bulbocodium (13)
  • Narcissus cyclamineus (13)
  • Narcissus 'February Gold' (6)
  • Narcissus 'Peeping Tom' (6)
  • Neillia thibetica
  • Nepenthes
  • Nepeta cataria
  • Nepeta cataria 'Citriodora'
  • Nepeta govaniana
  • Nepeta grandiflora 'Bramdean'
  • Nepeta grandiflora 'Dawn to Dusk'
  • Nepeta nervosa 'Blue Moon'
  • Nepeta racemosa 'Walker's Low'
  • Nepeta subsessilis
  • Nepeta × faassenii
  • Nepeta × faassenii 'Alba'
  • Nepeta 'Blue Dragon'
  • Nepeta 'Pink Candy'
  • Nepeta 'Six Hills Giant'
  • Nerine bowdenii
  • Nerine 'Winter Sun'
  • Nicandra physalodes 'Violacea'
  • Nipponanthemum nipponicum
  • Ocimum basilicum
  • Ocimum basilicum 'Ararat'
  • Ocimum basilicum 'Aristotle'
  • Ocimum basilicum 'British Basil'
  • Ocimum basilicum 'Christmas'
  • Ocimum basilicum 'Cinnamon'
  • Ocimum basilicum 'Crimson King' (PBR)
  • Ocimum basilicum 'Dark Opal'
  • Ocimum basilicum 'Green Globe'
  • Ocimum basilicum 'Green Ruffles'
  • Ocimum basilicum 'Horapha Nanum'
  • Ocimum basilicum 'Lemonade'
  • Ocimum basilicum 'Mrs Burns' Lemon'
  • Ocimum basilicum 'Napoletano'
  • Ocimum basilicum 'Puck'
  • Ocimum basilicum var. purpurascens 'Purple Ruffles'
  • Ocimum basilicum var. purpurascens 'Red Rubin'
  • Ocimum minimum
  • Ocimum × africanum 'Siam Queen'
  • Ocimum 'African Blue'
  • Oenanthe javanica 'Flamingo' (v)
  • Oenothera biennis
  • Oenothera fruticosa subsp. glauca
  • Oenothera lindheimeri Rosyjane = 'Harrosy' (PBR) (G)
  • Oenothera lindheimeri 'Passionate Blush' (PBR) (G)
  • Oenothera lindheimeri 'Passionate Rainbow' (PBR) (G/v)
  • Oenothera lindheimeri 'Variegata' (G/v)
  • Oenothera macrocarpa
  • Oenothera perennis
  • Oenothera speciosa
  • Olearia macrodonta
  • Olearia macrodonta 'Minor'
  • Olearia paniculata
  • Olearia ramulosa 'Blue Stars'
  • Olearia traversii
  • Olearia × haastii
  • Omphalodes cappadocica
  • Omphalodes cappadocica 'Cherry Ingram'
  • Omphalodes cappadocica 'Lilac Mist'
  • Omphalodes cappadocica 'Starry Eyes'
  • Omphalodes verna 'Alba'
  • Ophiopogon japonicus 'Variegatus' (v)
  • Ophiopogon planiscapus 'Kokuryu'
  • Origanum laevigatum 'Herrenhausen'
  • Origanum laevigatum 'Purple Charm'
  • Origanum majorana
  • Origanum onites
  • Origanum vulgare
  • Origanum vulgare 'Acorn Bank'
  • Origanum vulgare 'Aureum'
  • Origanum vulgare 'Aureum Crispum'
  • Origanum vulgare 'Compactum'
  • Origanum vulgare 'Country Cream' (v)
  • Origanum vulgare 'Gold Tip' (v)
  • Origanum vulgare 'Nanum'
  • Origanum vulgare 'Pink Mist'
  • Origanum vulgare 'Polyphant' (v)
  • Origanum vulgare subsp. hirtum 'Greek'
  • Origanum vulgare 'Thumble's Variety'
  • Origanum 'Barbara Tingey'
  • Origanum 'French'
  • Origanum 'Hot and Spicy'
  • Origanum 'Rosenkuppel'
  • Ornithogalum arabicum
  • Ornithogalum umbellatum
  • Osmanthus delavayi
  • Osmanthus delavayi 'George Gardner'
  • Osmanthus heterophyllus
  • Osmanthus heterophyllus 'Aureomarginatus' (v)
  • Osmanthus heterophyllus 'Goshiki' (v)
  • Osmanthus heterophyllus 'Variegatus' (v)
  • Osmanthus × burkwoodii
  • Osmunda regalis
  • Osteospermum jucundum
  • Oxalis adenophylla
  • Pachysandra terminalis 'Variegata' (v)
  • Paeonia delavayi (S)
  • Paeonia delavayi var. delavayi f. lutea (S)
  • Paeonia lactiflora 'Bowl of Beauty'
  • Paeonia lactiflora 'Cringley White'
  • Paeonia lactiflora 'Duchesse de Nemours'
  • Paeonia lactiflora 'Festiva Maxima'
  • Paeonia lactiflora 'Karl Rosenfield'
  • Paeonia lactiflora 'Sarah Bernhardt'
  • Paeonia × festiva 'Rubra Plena' (d)
  • Paeonia × suffruticosa 'Zhao Fen' (S)
  • Panicum virgatum 'Heavy Metal'
  • Panicum virgatum 'Northwind'
  • Panicum virgatum 'Prairie Sky'
  • Panicum virgatum 'Rehbraun'
  • Panicum virgatum 'Rotstrahlbusch'
  • Panicum virgatum 'Rubrum'
  • Panicum virgatum 'Shenandoah'
  • Panicum virgatum 'Squaw'
  • Papaver lateritium
  • Papaver orientale
  • Papaver (Oriental Group) 'Beauty of Livermere'
  • Papaver (Oriental Group) 'Carneum'
  • Papaver (Oriental Group) 'Curlilocks'
  • Papaver (Oriental Group) 'Goliath'
  • Papaver (Oriental Group) 'Mrs Perry'
  • Papaver (Oriental Group) 'Prinzessin Victoria Louise'
  • Papaver (Oriental Group) 'Royal Wedding'
  • Parahebe catarractae
  • Parahebe catarractae 'Porlock'
  • Parahebe catarractae 'Rosea'
  • Parahebe catarractae white-flowered
  • Parahebe lyallii
  • Parahebe lyallii 'Snowcap'
  • Parahebe perfoliata
  • Parahebe × bidwillii
  • Paronychia capitata
  • Parthenocissus henryana
  • Parthenocissus quinquefolia
  • Parthenocissus tricuspidata 'Beverley Brook'
  • Parthenocissus tricuspidata 'Veitchii'
  • Passiflora caerulea 'Clear Sky' (PBR)
  • Paulownia tomentosa
  • Pelargonium crispum 'Variegatum' (Sc/v)
  • Pelargonium fragrans
  • Pelargonium ionidiflorum
  • Pelargonium odoratissimum (Sc)
  • Pelargonium 'Ardwick Cinnamon' (Sc)
  • Pelargonium 'Atomic Snowflake' (Sc/v)
  • Pelargonium 'Attar of Roses' (Sc)
  • Pelargonium 'Big Apple' (Sc)
  • Pelargonium 'Birdbush Bobby' (Birdbush Series) (Sc)
  • Pelargonium 'Birdbush Bold and Beautiful' (Birdbush Series) (Sc)
  • Pelargonium 'Birdbush Nutty' (Birdbush Series) (Sc)
  • Pelargonium 'Brilliantine' (Sc)
  • Pelargonium 'Camphor Rose' (Sc)
  • Pelargonium 'Charity' (Sc)
  • Pelargonium 'Charmay Snowflake' (Sc/v)
  • Pelargonium 'Chocolate Peppermint' (Sc)
  • Pelargonium 'Citronella' (Sc)
  • Pelargonium 'Clorinda' (U/Sc)
  • Pelargonium 'Copthorne' (U/Sc)
  • Pelargonium 'Creamy Nutmeg' (Sc/v)
  • Pelargonium 'Deerwood Lavender Lass' (Sc)
  • Pelargonium 'Fern Mint' (Sc)
  • Pelargonium 'Fruity' (Sc)
  • Pelargonium 'Imperial Butterfly' (A/Sc)
  • Pelargonium 'Islington Peppermint' (Sc)
  • Pelargonium 'Lady Mary' (Sc)
  • Pelargonium 'Lady Plymouth' (Sc/v)
  • Pelargonium 'Lady Scarborough' (Sc)
  • Pelargonium 'Lara Ballerina' (Sc/d)
  • Pelargonium 'Lara Starshine' (Sc)
  • Pelargonium 'Orange Fizz' (Sc)
  • Pelargonium 'Pink Capricorn' (Sc)
  • Pelargonium 'Poquita' (Sc)
  • Pelargonium 'Prince of Orange' (Sc)
  • Pelargonium 'Pungent Peppermint' (Sc)
  • Pelargonium 'Radula' (Sc)
  • Pelargonium 'Rober's Lemon Rose' (Sc)
  • Pelargonium 'Royal Oak' (Sc)
  • Pelargonium 'Secret Love' (Sc)
  • Pelargonium 'Shottesham Pet' (Sc)
  • Pelargonium 'Sweet Mimosa' (Sc)
  • Pelargonium 'Torrento' (Sc)
  • Pennisetum alopecuroides 'Hameln'
  • Pennisetum massaicum 'Red Bunny Tails'
  • Pennisetum purpureum
  • Pennisetum villosum
  • Penstemon barbatus
  • Penstemon barbatus 'Pinacolada White' (Pinacolada Series)
  • Penstemon campanulatus
  • Penstemon digitalis
  • Penstemon digitalis 'Husker Red'
  • Penstemon digitalis 'Mystica'
  • Penstemon glaber 'Roundway Snowflake'
  • Penstemon hartwegii 'Albus'
  • Penstemon heterophyllus
  • Penstemon heterophyllus 'Heavenly Blue'
  • Penstemon hirsutus var. pygmaeus
  • Penstemon lyallii
  • Penstemon newberryi subsp. sonomensis
  • Penstemon ovatus
  • Penstemon pinifolius
  • Penstemon pinifolius 'Mersea Yellow'
  • Penstemon procerus var. formosus
  • Penstemon × mexicanus 'Sunburst Amethyst'
  • Penstemon Etna = 'Yatna' (Volcano Series)
  • Penstemon Fujiyama = 'Yayama' (PBR)
  • Penstemon Kilimanjaro = 'Yajaro' (Volcano Series)
  • Penstemon Phoenix Red = 'Pheni Reeda' (PBR) (Phoenix Series)
  • Penstemon Phoenix Violet = 'Pheni Vio' (Phoenix Series)
  • Penstemon Vesuvius = 'Yasius' (Volcano Series)
  • Penstemon 'Alice Hindley'
  • Penstemon 'Andenken an Friedrich Hahn'
  • Penstemon 'Apple Blossom'
  • Penstemon 'Beech Park'
  • Penstemon 'Blackbird' (Bird Series)
  • Penstemon 'Burgundy'
  • Penstemon 'Castle Forbes'
  • Penstemon 'Charles Rudd'
  • Penstemon 'Comberton'
  • Penstemon 'Connie's Pink'
  • Penstemon 'Countess of Dalkeith'
  • Penstemon 'Drinkstone Red'
  • Penstemon 'Evelyn'
  • Penstemon 'Flamingo'
  • Penstemon 'George Home'
  • Penstemon 'Hewell Pink Bedder'
  • Penstemon 'Hidcote Pink'
  • Penstemon 'John Nash'
  • Penstemon 'King George V'
  • Penstemon 'Lilac and Burgundy'
  • Penstemon 'Maurice Gibbs'
  • Penstemon 'Modesty'
  • Penstemon 'Mother of Pearl'
  • Penstemon 'Myddelton Gem'
  • Penstemon 'Osprey' (Bird Series)
  • Penstemon 'Overbury'
  • Penstemon 'Papal Purple'
  • Penstemon 'Pennington Gem'
  • Penstemon 'Pensham Amelia Jane' (Pensham Series)
  • Penstemon 'Pensham Avonbelle' (Pensham Series)
  • Penstemon 'Pensham Blackberry Ice' (Pensham Series)
  • Penstemon 'Pensham Charlotte Louise' (Pensham Series)
  • Penstemon 'Pensham Czar' (Pensham Series)
  • Penstemon 'Pensham Freshwater Pearl' (Pensham Series)
  • Penstemon 'Pensham Jessica Mai' (Pensham Series)
  • Penstemon 'Pensham Just Jayne' (Pensham Series)
  • Penstemon 'Pensham Laura' (Pensham Series)
  • Penstemon 'Pensham Miss Wilson' (Pensham Series)
  • Penstemon 'Pensham Plum Jerkum' (Pensham Series)
  • Penstemon 'Pensham Skies' (Pensham Series)
  • Penstemon 'Pensham Tayberry Ice' (Pensham Series)
  • Penstemon 'Pensham Victoria Plum' (Pensham Series)
  • Penstemon 'Pensham Wedding Bells' (Pensham Series)
  • Penstemon 'Pensham Westminster Belle' (Pensham Series)
  • Penstemon 'Pershore Carnival'
  • Penstemon 'Pershore Pink Necklace'
  • Penstemon 'Purple Bedder'
  • Penstemon 'Raven' (Bird Series)
  • Penstemon 'Razzle Dazzle'
  • Penstemon 'Rubicundus'
  • Penstemon 'Schoenholzeri'
  • Penstemon 'Sour Grapes' M. Fish
  • Penstemon 'Southgate Gem'
  • Penstemon 'Stapleford Gem'
  • Penstemon 'Strawberry Fancy'
  • Penstemon 'Strawberry Fizz'
  • Penstemon 'Thorn'
  • Penstemon 'Threave Pink'
  • Penstemon 'White Bedder'
  • Penstemon 'Windsor Red'
  • Penstemon 'Woodpecker'
  • Pentaglottis sempervirens
  • Persicaria affinis 'Darjeeling Red'
  • Persicaria affinis 'Donald Lowndes'
  • Persicaria amplexicaulis Taurus = 'Blotau'
  • Persicaria amplexicaulis 'Alba'
  • Persicaria amplexicaulis 'Atrosanguinea'
  • Persicaria amplexicaulis 'Dikke Floskes'
  • Persicaria amplexicaulis 'Firedance'
  • Persicaria amplexicaulis 'Golden Arrow' (v)
  • Persicaria amplexicaulis 'High Society'
  • Persicaria amplexicaulis 'JS Caliente' (PBR)
  • Persicaria amplexicaulis 'JS Delgado Macho' (PBR)
  • Persicaria amplexicaulis 'Rosea'
  • Persicaria bistorta
  • Persicaria bistorta 'Superba'
  • Persicaria microcephala 'Red Dragon' (PBR)
  • Persicaria odorata
  • Persicaria vacciniifolia
  • Persicaria virginiana (Variegated Group) 'Painter's Palette' (v)
  • Persicaria 'Pink Elephant'
  • Petasites fragrans
  • Petasites japonicus var. giganteus 'Nishiki-buki' (v)
  • Petrocoptis pyrenaica
  • Petrorhagia saxifraga
  • Petroselinum crispum
  • Petroselinum crispum French
  • Petroselinum crispum 'Moss Curled'
  • Petroselinum crispum var. neapolitanum
  • Petroselinum crispum var. tuberosum
  • Phalaris arundinacea var. picta 'Feesey' (v)
  • Philadelphus coronarius 'Variegatus' (v)
  • Philadelphus 'Avalanche'
  • Philadelphus 'Beauclerk'
  • Philadelphus 'Belle Étoile'
  • Philadelphus 'Bouquet Blanc'
  • Philadelphus 'Innocence' (v)
  • Philadelphus 'Manteau d'Hermine' (d)
  • Philadelphus 'Silberregen'
  • Philadelphus 'Snowbelle' (d)
  • Philadelphus 'Sybille'
  • Phlomis fruticosa
  • Phlomis italica
  • Phlomis russeliana
  • Phlomis tuberosa 'Amazone'
  • Phlomis tuberosa 'Bronze Flamingo'
  • Phlox adsurgens 'Wagon Wheel'
  • Phlox divaricata 'Clouds of Perfume'
  • Phlox douglasii
  • Phlox douglasii 'Boothman's Variety'
  • Phlox douglasii 'Ochsenblut'
  • Phlox douglasii 'Sprite'
  • Phlox paniculata Pink Eye Flame = 'Barthirtyfive' (PBR)
  • Phlox paniculata Pink Flame = 'Bartwelve' (PBR) (Flame Series)
  • Phlox paniculata 'Blue Paradise'
  • Phlox paniculata 'Blushing Bride'
  • Phlox paniculata 'Brigadier'
  • Phlox paniculata 'Caroline van den Berg'
  • Phlox paniculata 'Chintz'
  • Phlox paniculata 'Coral Queen'
  • Phlox paniculata 'Düsterlohe'
  • Phlox paniculata 'Goldmine' (PBR) (v)
  • Phlox paniculata 'Graf Zeppelin'
  • Phlox paniculata 'Iris'
  • Phlox paniculata 'Lady Clare'
  • Phlox paniculata 'Le Mahdi'
  • Phlox paniculata 'Mount Fuji'
  • Phlox paniculata 'Mrs A.E. Jeans'
  • Phlox paniculata 'Newbird'
  • Phlox paniculata 'Norah Leigh' (v)
  • Phlox paniculata 'Prince of Orange'
  • Phlox paniculata 'Starfire'
  • Phlox paniculata 'Tenor'
  • Phlox paniculata 'Uspekh'
  • Phlox paniculata 'White Admiral'
  • Phlox paniculata 'Windsor'
  • Phlox stolonifera 'Blue Ridge'
  • Phlox subulata 'Amazing Grace'
  • Phlox subulata 'Apple Blossom'
  • Phlox subulata 'Bavaria'
  • Phlox subulata 'Nettleton Variation' (v)
  • Phlox subulata 'Oakington Blue Eyes'
  • Phlox subulata 'Red Wings'
  • Phlox subulata 'Temiskaming'
  • Phlox Purple Flame = 'Barfourteen' (PBR) (Flame Series)
  • Phormium cookianum subsp. hookeri 'Tricolor' (v)
  • Phormium tenax 'Variegatum' (v)
  • Phormium 'Evening Glow' (v)
  • Phormium 'Jester' (v)
  • Phormium 'Maori Maiden' (v)
  • Phormium 'Maori Sunrise' (v)
  • Phormium 'Pink Panther' (v)
  • Photinia davidiana
  • Photinia davidiana 'Palette' (v)
  • Photinia × fraseri Pink Marble = 'Cassini' (v)
  • Photinia × fraseri 'Birmingham'
  • Photinia × fraseri 'Little Red Robin'
  • Photinia × fraseri 'Red Robin'
  • Photinia × fraseri 'Robusta'
  • Phuopsis stylosa
  • Phygelius capensis
  • Phygelius × rectus New Sensation = 'Blaphy' (PBR)
  • Phygelius × rectus Somerford Funfair Orange = 'Yapor' (Somerford Funfair Series)
  • Phygelius × rectus 'Moonraker'
  • Phygelius × rectus 'Rory' (PBR)
  • Phygelius × rectus 'Salmon Leap'
  • Phygelius Candy Drops Salmon Orange = 'Kerphysalm' (PBR) (Candy Drops Series)
  • Phyla nodiflora
  • Physalis alkekengi var. franchetii
  • Physocarpus opulifolius Amber Jubilee = 'Jefam' (PBR)
  • Physocarpus opulifolius Lady in Red = 'Tuilad' (PBR)
  • Physocarpus opulifolius 'Anny's Gold' (PBR)
  • Physocarpus opulifolius 'Burning Embers'
  • Physocarpus opulifolius 'Dart's Gold'
  • Physostegia virginiana
  • Physostegia virginiana 'Summer Snow'
  • Physostegia virginiana var. speciosa 'Bouquet Rose'
  • Physostegia virginiana var. speciosa 'Variegata' (v)
  • Physostegia virginiana 'Vivid'
  • Phyteuma scheuchzeri
  • Phytolacca americana
  • Phytolacca polyandra
  • Picea abies 'Nidiformis'
  • Picea glauca var. albertiana 'Conica'
  • Pieris japonica 'Little Heath' (v)
  • Pieris japonica 'Mountain Fire'
  • Pieris japonica 'Pink Delight'
  • Pieris japonica Taiwanensis Group
  • Pieris 'Flaming Silver' (v)
  • Pieris 'Forest Flame'
  • Pilosella aurantiaca
  • Piptanthus nepalensis
  • Pittosporum tenuifolium
  • Pittosporum tenuifolium 'County Park'
  • Pittosporum tenuifolium 'Elizabeth' (m/v)
  • Pittosporum tenuifolium 'Gold Star'
  • Pittosporum tenuifolium 'Golden King'
  • Pittosporum tenuifolium 'Irene Paterson' (m/v)
  • Pittosporum tenuifolium 'Purpureum' (m)
  • Pittosporum tenuifolium 'Silver Queen' (f/v)
  • Pittosporum tenuifolium 'Tandara Gold' (v)
  • Pittosporum tenuifolium 'Tom Thumb'
  • Pittosporum tenuifolium 'Warnham Gold' (m)
  • Pittosporum tobira
  • Plantago major 'Rosularis'
  • Plantago major 'Rubrifolia'
  • Platycodon grandiflorus
  • Platycodon grandiflorus 'Hakone Double Blue' (d)
  • Platycodon grandiflorus 'Mariesii'
  • Plectranthus madagascariensis 'Variegated Mintleaf' (v)
  • Pleioblastus pygmaeus
  • Pleioblastus variegatus (v)
  • Pleioblastus viridistriatus
  • Plumbago auriculata
  • Podocarpus nivalis
  • Podocarpus 'County Park Fire' (PBR) (f)
  • Polemonium archibaldiae
  • Polemonium caeruleum
  • Polemonium caeruleum 'Bambino Blue'
  • Polemonium caeruleum subsp. caeruleum f. album
  • Polemonium carneum 'Apricot Delight'
  • Polemonium reptans
  • Polemonium reptans 'Stairway to Heaven' (PBR) (v)
  • Polemonium yezoense var. hidakanum Bressingham Purple = 'Polbress'
  • Polemonium yezoense var. hidakanum 'Purple Rain'
  • Polemonium 'Northern Lights'
  • Polygala 'Purple Passion'
  • Polygaloides chamaebuxus
  • Polygonatum multiflorum L.
  • Polygonatum × hybridum
  • Polygonatum × hybridum 'Striatum' (v)
  • Polypodium vulgare
  • Polypodium vulgare 'Congestum Cristatum'
  • Polypodium vulgare 'Cornubiense Grandiceps'
  • Polystichum aculeatum
  • Polystichum munitum
  • Polystichum polyblepharum
  • Polystichum rigens
  • Polystichum setiferum plumosum grande 'Moly'
  • Polystichum setiferum
  • Polystichum setiferum (Divisilobum Group) 'Divisilobum Iveryanum'
  • Polystichum setiferum Acutilobum Group
  • Polystichum setiferum Congestum Group
  • Polystichum setiferum Cristatum Group
  • Polystichum setiferum Divisilobum Group
  • Polystichum setiferum 'Hirondelle'
  • Polystichum setiferum Multilobum Group
  • Polystichum setiferum 'Wakeleyanum'
  • Polystichum tsussimense
  • Potentilla atrosanguinea
  • Potentilla atrosanguinea var. argyrophylla
  • Potentilla crantzii
  • Potentilla erecta
  • Potentilla fruticosa (Sulphurascens Group) 'Elizabeth'
  • Potentilla fruticosa Marian Red Robin = 'Marrob' (PBR)
  • Potentilla fruticosa Princess = 'Blink'
  • Potentilla fruticosa 'Abbotswood'
  • Potentilla fruticosa 'Daydawn'
  • Potentilla fruticosa 'Goldstar'
  • Potentilla fruticosa 'Hopleys Orange'
  • Potentilla fruticosa 'Jackman's Variety'
  • Potentilla fruticosa 'Katherine Dykes'
  • Potentilla fruticosa 'Limelight'
  • Potentilla fruticosa 'Macpenny's Cream'
  • Potentilla fruticosa 'Manchu'
  • Potentilla fruticosa 'Pink Beauty' (PBR)
  • Potentilla fruticosa 'Pink Whisper'
  • Potentilla fruticosa 'Red Ace'
  • Potentilla fruticosa 'Sunset'
  • Potentilla fruticosa 'Tangerine'
  • Potentilla fruticosa 'Tilford Cream'
  • Potentilla fruticosa 'Tom Conway'
  • Potentilla megalantha
  • Potentilla nepalensis 'Miss Willmott'
  • Potentilla nepalensis 'Ron McBeath'
  • Potentilla neumanniana 'Nana'
  • Potentilla recta
  • Potentilla recta 'Warrenii'
  • Potentilla × tonguei
  • Potentilla 'Arc-en-ciel'
  • Potentilla 'Blazeaway'
  • Potentilla 'Gibson's Scarlet'
  • Potentilla 'White Queen'
  • Potentilla 'William Rollisson'
  • Potentilla 'Yellow Queen'
  • Pratia angulata 'Treadwellii'
  • Pratia pedunculata
  • Pratia pedunculata 'Alba'
  • Pratia pedunculata 'County Park'
  • Primula beesiana (Pf)
  • Primula bulleyana (Pf)
  • Primula capitata (Ca)
  • Primula capitata 'Noverna Deep Blue' (Ca)
  • Primula denticulata (De)
  • Primula denticulata 'Rubin' (De)
  • Primula elatior (Pr)
  • Primula florindae (Si)
  • Primula florindae orange-flowered (Si)
  • Primula japonica 'Miller's Crimson' (Pf)
  • Primula japonica 'Postford White' (Pf)
  • Primula rosea 'Grandiflora' (Or)
  • Primula sieboldii (Co)
  • Primula veris (Pr)
  • Primula vulgaris (Pr/Prim)
  • Primula vulgaris subsp. sibthorpii (Pr/Prim)
  • Primula 'Wanda' (Pr/Prim)
  • Primula 'Woodland Walk' (Pr/Prim)
  • Prostanthera cuneata
  • Prunella grandiflora
  • Prunella grandiflora 'Alba'
  • Prunella grandiflora 'Pink Loveliness'
  • Prunella grandiflora 'White Loveliness'
  • Prunella vulgaris
  • Prunella 'Rose Pearl'
  • Prunus cerasifera 'Nigra'
  • Prunus glandulosa 'Alba Plena' (d)
  • Prunus glandulosa 'Sinensis' (d)
  • Prunus incisa 'Kojo-no-mai'
  • Prunus incisa 'Oshidori' (d)
  • Prunus laurocerasus 'Rotundifolia'
  • Prunus laurocerasus 'Variegata' ambig. (v)
  • Prunus laurocerasus 'Zabeliana'
  • Prunus triloba 'Multiplex' (d)
  • Ptelea trifoliata
  • Pterocephalus perennis
  • Pulmonaria angustifolia
  • Pulmonaria angustifolia 'Azurea'
  • Pulmonaria angustifolia 'Munstead Blue'
  • Pulmonaria longifolia
  • Pulmonaria longifolia 'Bertram Anderson'
  • Pulmonaria rubra
  • Pulmonaria rubra 'David Ward' (v)
  • Pulmonaria rubra 'Redstart'
  • Pulmonaria saccharata
  • Pulmonaria saccharata 'Alba'
  • Pulmonaria 'Blue Ensign'
  • Pulmonaria 'Diana Clare'
  • Pulmonaria 'Excalibur'
  • Pulmonaria 'Lewis Palmer'
  • Pulmonaria 'Majesté'
  • Pulmonaria 'Roy Davidson'
  • Pulmonaria 'Sissinghurst White'
  • Pulsatilla alpina
  • Pulsatilla pratensis
  • Pulsatilla rubra
  • Pulsatilla vulgaris
  • Punica granatum var. nana
  • Pyracantha coccinea 'Red Column'
  • Pyracantha coccinea 'Red Cushion'
  • Pyracantha Alexander Pendula = 'Renolex'
  • Pyracantha Saphyr Rouge = 'Cadrou'
  • Pyracantha 'Golden Charmer'
  • Pyracantha 'Mohave'
  • Pyracantha 'Orange Glow'
  • Pyracantha 'Soleil d'Or'
  • Pyracantha 'Teton'
  • Ramonda myconi
  • Ranunculus aconitifolius 'Flore Pleno' (d)
  • Ranunculus acris
  • Ranunculus acris 'Flore Pleno' (d)
  • Ranunculus gramineus
  • Raoulia hookeri
  • Rehmannia elata
  • Rehmannia Walberton's Magic Dragon = 'Walremadra' (PBR)
  • Reseda lutea
  • Rheum palmatum
  • Rheum palmatum var. tanguticum
  • Rheum × hybridum 'Champagne'
  • Rheum × hybridum 'Early Victoria'
  • Rheum × hybridum 'Glaskin's Perpetual'
  • Rheum × hybridum 'Timperley Early 1'
  • Rheum 'Ace of Hearts'
  • Rhodanthemum hosmariense
  • Rhodanthemum 'Marrakech' (Atlas Daisy Series)
  • Rhodiola rosea
  • Rhodiola saxifragoides
  • Rhododendron indicum 'Macranthum' (EA)
  • Rhododendron luteum (A)
  • Rhododendron ponticum 'Variegatum' (v)
  • Rhododendron 'Kirin' (Kurume) (EA/d)
  • Rhododendron 'Koran-yuki' (EA)
  • Rhododendron Mollis, orange-flowered (M)
  • Rhododendron Mollis, pink-flowered (M)
  • Rhododendron Mollis, yellow-flowered (M)
  • Rhododendron 'Mother's Day' (Kurume) (EA)
  • Rhododendron 'Orange Beauty' (Kaempferi) (EA)
  • Rhododendron Satsuki Group (EA)
  • Rhododendron 'Vuyk's Rosyred' (Vuykiana) (EA)
  • Ribes alpinum
  • Ribes laurifolium (f)
  • Ribes laurifolium 'Mrs Amy Doncaster'
  • Ribes nigrum 'Ben Alder' (B)
  • Ribes nigrum 'Ben Connan' (B)
  • Ribes nigrum 'Ben Lomond' (PBR) (B)
  • Ribes nigrum 'Ben Sarek' (B)
  • Ribes nigrum 'Ben Tirran' (B)
  • Ribes odoratum
  • Ribes rubrum 'Gloire de Sablons' (P)
  • Ribes rubrum 'Jonkheer van Tets' (R)
  • Ribes rubrum 'Laxton's Number One' (R)
  • Ribes rubrum 'Red Lake' (R)
  • Ribes rubrum 'Rosetta' (R)
  • Ribes rubrum 'Rovada' (R)
  • Ribes rubrum 'Versailles Blanche' (W/C)
  • Ribes sanguineum White Icicle = 'Ubric'
  • Ribes sanguineum 'Brianjou'
  • Ribes sanguineum 'Brocklebankii'
  • Ribes sanguineum 'Elkington's White'
  • Ribes sanguineum 'King Edward VII'
  • Ribes sanguineum 'Koja'
  • Ribes sanguineum 'Poky's Pink'
  • Ribes sanguineum 'Pulborough Scarlet'
  • Ribes sanguineum 'Red Pimpernel'
  • Ribes speciosum
  • Ribes uva-crispa 'Captivator' (C)
  • Ribes uva-crispa 'Hinnonmäki Grön' (D)
  • Ribes uva-crispa 'Hinnonmäki Gul' (D)
  • Ribes uva-crispa 'Hinnonmäki Röd' (C/D)
  • Ribes uva-crispa 'Invicta' (C/D)
  • Ribes uva-crispa 'Whinham's Industry' (C/D)
  • Ribes × beatonii
  • Rodgersia aesculifolia
  • Rodgersia pinnata
  • Rodgersia pinnata 'Elegans'
  • Rodgersia 'Dark Pokers'
  • Romanzoffia unalaschcensis
  • Romneya coulteri
  • Rosa banksiae (Ra)
  • Rosa gallica var. officinalis (G)
  • Rosa spinosissima 'Mary, Queen of Scots'
  • Rosularia aizoon
  • Rosularia chrysantha
  • Rosularia rechingeri
  • Rosularia sempervivum subsp. glaucophylla
  • Rubia tinctorum
  • Rubus cockburnianus (F)
  • Rubus cockburnianus 'Goldenvale'
  • Rubus fruticosus agg. 'Adrienne' (B)
  • Rubus fruticosus agg. 'Merton Thornless' (B)
  • Rubus fruticosus agg. 'Oregon Thornless' (B)
  • Rubus fruticosus agg. 'Reuben' (PBR) (B)
  • Rubus fruticosus agg. 'Waldo' (B)
  • Rubus idaeus Ruby Beauty = 'Nr7' (PBR) (F)
  • Rubus idaeus Twotimer Sugana Yellow (F)
  • Rubus idaeus 'All Gold' (F)
  • Rubus idaeus 'Autumn Bliss' (F)
  • Rubus idaeus 'Erika' (PBR) (F)
  • Rubus idaeus 'Glen Ample' (PBR) (F)
  • Rubus idaeus 'Glen Clova' (F)
  • Rubus idaeus 'Glen Dee' (F)
  • Rubus idaeus 'Glen Doll' (PBR) (F)
  • Rubus idaeus 'Glen Magna' (PBR) (F)
  • Rubus idaeus 'Glen Prosen' (PBR) (F)
  • Rubus idaeus 'Heritage' (F)
  • Rubus idaeus 'Joan J' (PBR) (F)
  • Rubus idaeus 'Leo' (PBR) (F)
  • Rubus idaeus 'Malling Jewel' (F)
  • Rubus idaeus 'Malling Minerva' (F)
  • Rubus idaeus 'Polka' (PBR) (F)
  • Rubus idaeus 'Tadmor' (PBR) (F)
  • Rubus idaeus 'Tulameen' (F)
  • Rubus idaeus 'Zeva' (F)
  • Rubus × loganobaccus 'Ly 59' (F)
  • Rubus Tayberry Group (F)
  • Rudbeckia fulgida Viette's Little Suzy = 'Blovi'
  • Rudbeckia fulgida 'City Garden'
  • Rudbeckia fulgida 'Little Goldstar' (PBR)
  • Rudbeckia fulgida var. deamii
  • Rudbeckia fulgida var. speciosa
  • Rudbeckia fulgida var. sullivantii 'Goldsturm'
  • Rudbeckia laciniata
  • Rudbeckia laciniata 'Goldquelle' (d)
  • Rudbeckia occidentalis 'Green Wizard'
  • Rudbeckia subtomentosa 'Henry Eilers'
  • Rumex acetosa
  • Rumex acetosella
  • Rumex sanguineus
  • Rumex scutatus
  • Rumex scutatus 'Silver Shield'
  • Ruscus aculeatus
  • Ruta graveolens 'Jackman's Blue'
  • Ruta graveolens 'Variegata' (v)
  • Sagina subulata var. glabrata 'Aurea'
  • Salix alba var. vitellina
  • Salix alba var. vitellina 'Britzensis' (m)
  • Salix babylonica var. pekinensis 'Tortuosa' (f)
  • Salix daphnoides
  • Salix elaeagnos subsp. angustifolia
  • Salix gracilistyla 'Melanostachys' (m)
  • Salix gracilistyla 'Mount Aso'
  • Salix integra 'Hakuro-nishiki' (v)
  • Salix lapponum
  • Salix repens
  • Salvia amplexicaulis
  • Salvia apiana
  • Salvia elegans 'Golden Delicious'
  • Salvia elegans 'Honey Melon'
  • Salvia elegans 'Scarlet Pineapple'
  • Salvia elegans 'Tangerine'
  • Salvia fruticosa
  • Salvia greggii
  • Salvia hians
  • Salvia lavandulifolia
  • Salvia microphylla var. microphylla
  • Salvia nemorosa
  • Salvia nemorosa Sensation Rose (Sensation Series)
  • Salvia nemorosa 'Amethyst'
  • Salvia nemorosa 'Bordeau Steel Blue'
  • Salvia nemorosa 'Caradonna'
  • Salvia officinalis
  • Salvia officinalis 'Icterina' (v)
  • Salvia officinalis 'Purpurascens'
  • Salvia officinalis 'Tricolor' (v)
  • Salvia patens
  • Salvia pratensis
  • Salvia pratensis Haematodes Group
  • Salvia pratensis 'Pink Delight' (PBR)
  • Salvia rosmarinus (Albiflora Group) 'Lady in White' (Ro)
  • Salvia rosmarinus (Angustifolia Group) 'Benenden Blue' (Ro)
  • Salvia rosmarinus (Angustifolia Group) 'Corsican Blue' (Ro)
  • Salvia rosmarinus (Prostrata Group) 'Capri' (Ro)
  • Salvia rosmarinus (Prostrata Group) 'Rampant Boule' (Ro)
  • Salvia rosmarinus (Ro)
  • Salvia rosmarinus Albiflora Group (Ro)
  • Salvia rosmarinus 'Arp' (Ro)
  • Salvia rosmarinus 'Aurea' (Ro/v)
  • Salvia rosmarinus 'Barbecue' (PBR) (Ro)
  • Salvia rosmarinus 'Blue Lagoon' (Ro)
  • Salvia rosmarinus 'Farinole' (Ro)
  • Salvia rosmarinus 'Fota Blue' (Ro)
  • Salvia rosmarinus 'Foxtail' (Ro)
  • Salvia rosmarinus 'Gorizia' (Ro)
  • Salvia rosmarinus 'Green Ginger' (Ro)
  • Salvia rosmarinus 'Haifa' (Ro)
  • Salvia rosmarinus 'Iden Blue Boy' (Ro)
  • Salvia rosmarinus 'Majorca Pink' (Ro)
  • Salvia rosmarinus 'Marenca' (Ro)
  • Salvia rosmarinus 'McConnell's Blue' (Ro)
  • Salvia rosmarinus 'Miss Jessopp's Upright' (Ro)
  • Salvia rosmarinus 'Pointe du Raz' (Ro)
  • Salvia rosmarinus 'Primley Blue' (Ro)
  • Salvia rosmarinus Prostrata Group (Ro)
  • Salvia rosmarinus 'Rex' (Ro)
  • Salvia rosmarinus 'Roman Beauty' (PBR) (Ro)
  • Salvia rosmarinus 'Rosea' (Ro)
  • Salvia rosmarinus 'Severn Sea' (Ro)
  • Salvia rosmarinus 'Sissinghurst Blue' (Ro)
  • Salvia rosmarinus 'Sudbury Blue' (Ro)
  • Salvia rosmarinus 'Sunkissed' (PBR) (Ro)
  • Salvia rosmarinus 'Tuscan Blue' (Ro)
  • Salvia sclarea
  • Salvia tiliifolia
  • Salvia transsylvanica
  • Salvia uliginosa
  • Salvia verticillata
  • Salvia verticillata 'Purple Rain'
  • Salvia viridis Claryssa Series
  • Salvia × jamensis Violette de Loire = 'Barsal' (PBR)
  • Salvia × jamensis 'Maraschino'
  • Salvia × jamensis 'Melen' (PBR)
  • Salvia × superba
  • Salvia × superba 'Merleau Rose'
  • Salvia × sylvestris Blue Marvel = 'Balsalarv' (PBR)
  • Salvia × sylvestris 'Blauhügel'
  • Salvia × sylvestris 'Blaukönigin'
  • Salvia × sylvestris 'Rose Queen'
  • Salvia × sylvestris 'Viola Klose'
  • Salvia 'Belhaven'
  • Salvia 'Blue Spire' (Pe)
  • Salvia 'Endless Love'
  • Salvia 'Eveline'
  • Salvia 'Hot Lips'
  • Salvia 'Jeremy'
  • Salvia 'Nachtvlinder'
  • Salvia 'Nuchi'
  • Salvia 'Phyllis' Fancy'
  • Salvia 'Royal Bumble'
  • Salvia 'Wendy's Wish' (PBR)
  • Sambucus nigra f. porphyrophylla 'Eva' (PBR)
  • Sambucus nigra f. porphyrophylla 'Gerda' (PBR)
  • Sambucus nigra 'Pulverulenta' (v)
  • Sambucus racemosa 'Plumosa Aurea'
  • Sanguisorba canadensis
  • Sanguisorba hakusanensis 'Lilac Squirrel'
  • Sanguisorba minor
  • Sanguisorba obtusa
  • Sanguisorba officinalis
  • Santolina chamaecyparissus
  • Santolina chamaecyparissus 'Lemon Queen'
  • Santolina chamaecyparissus 'Nana'
  • Santolina chamaecyparissus 'Small-Ness'
  • Santolina pinnata subsp. neapolitana 'Edward Bowles'
  • Santolina rosmarinifolia
  • Santolina rosmarinifolia 'Lemon Fizz'
  • Santolina rosmarinifolia subsp. rosmarinifolia
  • Santolina rosmarinifolia subsp. rosmarinifolia 'Primrose Gem'
  • Santolina Shades of Jade = 'Sant101'
  • Saponaria ocymoides
  • Saponaria officinalis
  • Sarcococca confusa
  • Sarcococca hookeriana var. digyna
  • Sarcococca ruscifolia
  • Sarracenia leucophylla
  • Sarracenia psittacina
  • Sarracenia × exornata
  • Sarracenia × swaniana
  • Sarracenia × wrigleyana
  • Satureja douglasii 'Indian Mint' (PBR)
  • Satureja hortensis
  • Satureja montana
  • Satureja spicigera
  • Satureja thymbra
  • Saxifraga caesia L. (8)
  • Saxifraga fortunei (5)
  • Saxifraga juniperifolia (7)
  • Saxifraga oppositifolia (7)
  • Saxifraga paniculata (8)
  • Saxifraga sancta (7)
  • Saxifraga umbrosa (11)
  • Saxifraga × urbium (11)
  • Saxifraga 'Alba' (× apiculata) (7)
  • Saxifraga 'Aureopunctata' (× urbium) (11/v)
  • Saxifraga 'Cloth of Gold' (exarata subsp. moschata) (15)
  • Saxifraga 'Cuscutiformis' (stolonifera) (5)
  • Saxifraga 'Elf' (exarata subsp. moschata) (15)
  • Saxifraga 'Gregor Mendel' (× apiculata) (7)
  • Saxifraga 'Hime' (stolonifera) (5)
  • Saxifraga 'Pixie' (15)
  • Saxifraga 'Primuloides' (umbrosa) (11)
  • Saxifraga 'Primuloides' variegated (umbrosa) (11/v)
  • Saxifraga 'Rosea' (paniculata) (8)
  • Saxifraga 'Salomonii' (× salmonica) (7)
  • Saxifraga 'Silver Cushion' (15/v)
  • Saxifraga Southside Seedling Group (8)
  • Saxifraga 'Splendens' (oppositifolia) (7)
  • Saxifraga 'Sturmiana' (paniculata) (8)
  • Saxifraga 'Variegata' (× urbium) (11/v)
  • Saxifraga 'Wada' (fortunei) (5)
  • Saxifraga 'Walter Ingwersen' (umbrosa) (11)
  • Saxifraga 'White Pixie' (15)
  • Saxifraga 'Winifred Bevington' (8 × 11)
  • Scabiosa caucasica 'Clive Greaves'
  • Scabiosa caucasica 'Fama'
  • Scabiosa caucasica House's hybrids
  • Scabiosa columbaria 'Misty Butterflies'
  • Scabiosa columbaria subsp. ochroleuca
  • Scabiosa graminifolia
  • Scabiosa 'Barocca'
  • Scabiosa 'Pink Mist'
  • Scilla forbesii
  • Scilla sardensis
  • Scilla siberica 'Spring Beauty'
  • Scutellaria alpina
  • Scutellaria lateriflora
  • Scutellaria scordiifolia
  • Securigera varia
  • Sedum acre 'Aureum'
  • Sedum acre 'Golden Queen'
  • Sedum acre 'Minus'
  • Sedum album
  • Sedum dasyphyllum
  • Sedum kamtschaticum var. ellacombeanum
  • Sedum kamtschaticum var. floriferum 'Weihenstephaner Gold'
  • Sedum kamtschaticum var. kamtschaticum 'Variegatum' (v)
  • Sedum middendorffianum
  • Sedum oreganum
  • Sedum rupestre L.
  • Sedum sediforme
  • Sedum sedoides var. album
  • Sedum sexangulare
  • Sedum spathulifolium 'Cape Blanco'
  • Sedum spurium
  • Sedum spurium 'Fuldaglut'
  • Sedum spurium 'Purpureum'
  • Sedum spurium 'Purpurteppich'
  • Sedum spurium 'Roseum'
  • Sedum spurium 'Ruby Mantle'
  • Sedum spurium 'Schorbuser Blut'
  • Sedum stenopetalum 'Douglasii'
  • Sedum tetractinum 'Coral Reef'
  • Semiaquilegia ecalcarata
  • Sempervivum altum
  • Sempervivum arachnoideum
  • Sempervivum arachnoideum × pittonii
  • Sempervivum arachnoideum L. subsp. tomentosum (C.B. Lehm. & Schnittsp.) Schinz & Thell.
  • Sempervivum arachnoideum 'Opitz'
  • Sempervivum arachnoideum subsp. tomentosum 'Stansfieldii'
  • Sempervivum arachnoideum var. bryoides
  • Sempervivum atlanticum 'Edward Balls'
  • Sempervivum atlanticum from Oukaïmeden, Morocco
  • Sempervivum balcanicum
  • Sempervivum ballsii
  • Sempervivum calcareum
  • Sempervivum calcareum 'Extra'
  • Sempervivum calcareum from Colle St Michel, France
  • Sempervivum calcareum from Petite Ceüse, France
  • Sempervivum calcareum 'Greenii'
  • Sempervivum calcareum 'Guillaumes'
  • Sempervivum calcareum 'Mrs Giuseppi'
  • Sempervivum calcareum 'Sir William Lawrence'
  • Sempervivum cantabricum subsp. guadarramense from Pico del Lobo, Spain, No 1
  • Sempervivum cantabricum subsp. urbionense
  • Sempervivum caucasicum
  • Sempervivum ciliosum
  • Sempervivum erythraeum
  • Sempervivum giuseppii
  • Sempervivum giuseppii from Peña Espigüete, Spain
  • Sempervivum ingwersenii × pumilum
  • Sempervivum kindingeri
  • Sempervivum macedonicum
  • Sempervivum marmoreum
  • Sempervivum montanum subsp. stiriacum
  • Sempervivum nevadense
  • Sempervivum nevadense 'Hirtellum'
  • Sempervivum pumilum
  • Sempervivum pumilum from Techensis, Caucasus Mountains
  • Sempervivum reginae-amaliae
  • Sempervivum ruthenicum
  • Sempervivum tectorum 'Atropurpureum'
  • Sempervivum tectorum monstrose
  • Sempervivum tectorum 'Royanum'
  • Sempervivum tectorum var. alpinum
  • Sempervivum tectorum var. boutignyanum from Route de Tuixén, Spain
  • Sempervivum tectorum 'Violaceum'
  • Sempervivum × fauconnetii 'Thompsonii'
  • Sempervivum 'Aladdin'
  • Sempervivum 'Alpha'
  • Sempervivum 'Amanda'
  • Sempervivum 'Atlantic'
  • Sempervivum 'Atlantis' ambig.
  • Sempervivum 'Banyan'
  • Sempervivum 'Bascour Zilver'
  • Sempervivum 'Bedivere'
  • Sempervivum 'Bella Meade'
  • Sempervivum 'Black Knight'
  • Sempervivum 'Black Mini'
  • Sempervivum 'Blood Tip'
  • Sempervivum 'Blue Boy'
  • Sempervivum 'Brock'
  • Sempervivum 'Bronco'
  • Sempervivum 'Bronze Pastel'
  • Sempervivum 'Brown Owl'
  • Sempervivum 'Café'
  • Sempervivum 'Cindy'
  • Sempervivum 'Colchicum'
  • Sempervivum 'Commander Hay'
  • Sempervivum 'Corsair'
  • Sempervivum 'Crispyn'
  • Sempervivum 'Cupream'
  • Sempervivum 'Dallas'
  • Sempervivum 'Dark Beauty'
  • Sempervivum 'Deep Fire'
  • Sempervivum 'Edge of Night'
  • Sempervivum 'Emerald Giant'
  • Sempervivum 'Emerson's Giant'
  • Sempervivum 'Engle's'
  • Sempervivum 'Exhibita'
  • Sempervivum 'Fire Glint'
  • Sempervivum 'Flanders Passion'
  • Sempervivum 'Ford's Spring'
  • Sempervivum 'Frosty'
  • Sempervivum 'Fuego'
  • Sempervivum 'Gamma'
  • Sempervivum 'Granat'
  • Sempervivum 'Green Disk'
  • Sempervivum 'Green Dragon'
  • Sempervivum 'Grey Dawn'
  • Sempervivum 'Grey Owl'
  • Sempervivum 'Greyfriars'
  • Sempervivum 'Gulle Dame'
  • Sempervivum 'Hall's Hybrid'
  • Sempervivum 'Happy'
  • Sempervivum 'Hayling'
  • Sempervivum 'Heigham Red'
  • Sempervivum 'Icicle'
  • Sempervivum 'Irazu'
  • Sempervivum 'Jet Stream'
  • Sempervivum 'Jewel Case'
  • Sempervivum 'Jubilee'
  • Sempervivum 'Jungle Fires'
  • Sempervivum 'Justine's Choice'
  • Sempervivum 'King George'
  • Sempervivum 'Koko Flanel'
  • Sempervivum 'Korspelsegietje'
  • Sempervivum 'Kramer's Spinrad'
  • Sempervivum 'Lavender and Old Lace'
  • Sempervivum 'Lilac Time'
  • Sempervivum 'Lipari'
  • Sempervivum 'Lively Bug'
  • Sempervivum 'Lonzo'
  • Sempervivum 'Mahogany'
  • Sempervivum 'Mercury'
  • Sempervivum 'Midas'
  • Sempervivum 'Mondstein'
  • Sempervivum 'Mount Hood'
  • Sempervivum 'Mulberry Wine'
  • Sempervivum 'Nico'
  • Sempervivum 'Norbert'
  • Sempervivum 'Ohio Burgundy'
  • Sempervivum 'Othello'
  • Sempervivum 'Patrician'
  • Sempervivum 'Pekinese'
  • Sempervivum 'Petsy'
  • Sempervivum 'Pilatus'
  • Sempervivum 'Pink Mist'
  • Sempervivum 'Pippin'
  • Sempervivum 'Pseudo-ornatum'
  • Sempervivum 'Purple Queen'
  • Sempervivum 'Quintessence'
  • Sempervivum 'Red Devil'
  • Sempervivum 'Red Mountain'
  • Sempervivum 'Reginald Malby'
  • Sempervivum 'Reinhard'
  • Sempervivum 'Remus'
  • Sempervivum 'Robin'
  • Sempervivum 'Rosie'
  • Sempervivum 'Rubin'
  • Sempervivum 'Saturn'
  • Sempervivum 'Silberspitz'
  • Sempervivum 'Silver Jubilee'
  • Sempervivum 'Skrocki's Beauty'
  • Sempervivum 'Snowberger'
  • Sempervivum 'Spider's Lair'
  • Sempervivum 'Springmist'
  • Sempervivum 'Sprite'
  • Sempervivum 'Stuffed Olive'
  • Sempervivum 'Topaz'
  • Sempervivum 'Tordeur's Memory'
  • Sempervivum 'Trail Walker'
  • Sempervivum 'Twilight Blues'
  • Sempervivum 'Woolcott's Variety'
  • Sempervivum 'Zenith'
  • Senecio polyodon
  • Serratula tinctoria var. seoanei
  • Sidalcea malviflora
  • Sidalcea 'Elsie Heugh'
  • Sidalcea 'Rose Queen'
  • Sidalcea Stark's hybrids
  • Silene acaulis
  • Silene acaulis 'Mount Snowdon'
  • Silene acaulis subsp. acaulis
  • Silene alpestris
  • Silene dioica
  • Silene nutans
  • Silene schafta
  • Silene uniflora
  • Silene uniflora 'Druett's Variegated' (v)
  • Silene uniflora 'Robin Whitebreast' (d)
  • Silene vulgaris
  • Silybum marianum
  • Sisyrinchium angustifolium
  • Sisyrinchium californicum 'Yellowstone'
  • Sisyrinchium idahoense
  • Sisyrinchium idahoense var. bellum
  • Sisyrinchium striatum
  • Sisyrinchium striatum 'Aunt May' (v)
  • Sisyrinchium 'Californian Skies'
  • Sisyrinchium 'Devon Skies'
  • Sisyrinchium 'E.K. Balls'
  • Skimmia japonica (f)
  • Skimmia japonica 'Bronze Knight' (m)
  • Skimmia japonica 'Dad's Red Dragon' (f)
  • Skimmia japonica 'Fragrans' (m)
  • Skimmia japonica 'Macpenny Dwarf' (m)
  • Skimmia japonica 'Nymans' (f)
  • Skimmia japonica 'Rubella' (m)
  • Skimmia japonica subsp. reevesiana
  • Skimmia japonica 'Veitchii' (f)
  • Skimmia japonica 'Wakehurst White' (f)
  • Skimmia laureola
  • Skimmia × confusa 'Kew Green' (m)
  • Smyrnium olusatrum
  • Solanum crispum 'Glasnevin'
  • Solanum laxum
  • Solanum laxum 'Album'
  • Solanum laxum 'Crèche du Pape'
  • Soldanella alpina
  • Solidago cutleri
  • Solidago rugosa 'Fireworks'
  • Solidago sphacelata 'Golden Fleece'
  • Solidago virgaurea
  • Solidago × luteus
  • Solidago × luteus 'Lemore'
  • Solidago 'Ballardii'
  • Solidago 'Golden Dwarf'
  • Solidago 'Goldilocks'
  • Solidago 'Goldkind'
  • Solidago 'Lena'
  • Solidago 'Tom Thumb'
  • Sorbus aff. reducta
  • Spartium junceum
  • Spiraea japonica Golden Princess = 'Lisp'
  • Spiraea japonica Magic Carpet = 'Walbuma' (PBR) (v)
  • Spiraea japonica 'Albiflora'
  • Spiraea japonica 'Anthony Waterer' (v)
  • Spiraea japonica 'Firelight'
  • Spiraea japonica 'Genpei'
  • Spiraea japonica 'Gold Mound'
  • Spiraea japonica 'Goldflame'
  • Spiraea japonica 'Little Princess'
  • Spiraea japonica 'Nana'
  • Spiraea japonica 'White Gold' (PBR)
  • Spiraea nipponica 'Snowmound'
  • Spiraea thunbergii
  • Spiraea thunbergii 'Variegata' (v)
  • Spiraea × vanhouttei
  • Spiraea 'Arguta'
  • Stachys byzantina
  • Stachys byzantina 'Big Ears'
  • Stachys byzantina 'Cotton Boll'
  • Stachys byzantina 'Silky Fleece'
  • Stachys byzantina 'Silver Carpet'
  • Stachys monieri 'Rosea'
  • Stachys palustris
  • Stachys thunbergii 'Danielle'
  • Stachys 'Hidalgo'
  • Stephanandra incisa 'Crispa'
  • Stephanandra tanakae
  • Stevia rebaudiana
  • Stipa calamagrostis
  • Stipa gigantea
  • Stipa tenuissima
  • Stokesia laevis
  • Stokesia laevis 'Omega Skyrocket'
  • Succisa pratensis
  • Symphoricarpos albus 'Constance Spry'
  • Symphoricarpos × chenaultii
  • Symphoricarpos × doorenbosii 'Mother of Pearl'
  • 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 'Barr's Violet'
  • Symphyotrichum novae-angliae 'Harrington's Pink'
  • Symphyotrichum novae-angliae 'Helen Picton'
  • Symphyotrichum novae-angliae 'Herbstschnee'
  • Symphyotrichum novae-angliae 'Lucida'
  • Symphyotrichum novae-angliae 'Marina Wolkonsky'
  • Symphyotrichum novae-angliae 'Pink Parfait'
  • Symphyotrichum novae-angliae 'Pink Victor'
  • Symphyotrichum novae-angliae 'Purple Dome'
  • Symphyotrichum novae-angliae 'Rubinschatz'
  • Symphyotrichum novae-angliae 'Sayer's Croft'
  • Symphyotrichum novae-angliae 'Septemberrubin'
  • Symphyotrichum novi-belgii Bahamas = 'Dasone' (Island Series)
  • Symphyotrichum novi-belgii Samoa = 'Dasthree' (Island Series)
  • Symphyotrichum novi-belgii Tonga = 'Dasfour' (Island Series)
  • Symphyotrichum novi-belgii 'Albanian'
  • Symphyotrichum novi-belgii 'Alice Haslam'
  • Symphyotrichum novi-belgii 'Audrey'
  • Symphyotrichum novi-belgii 'Blue Bouquet'
  • Symphyotrichum novi-belgii 'Chatterbox'
  • Symphyotrichum novi-belgii 'Chequers'
  • Symphyotrichum novi-belgii 'Crimson Brocade'
  • Symphyotrichum novi-belgii 'Dandy'
  • Symphyotrichum novi-belgii 'Daniela'
  • Symphyotrichum novi-belgii 'Dolly'
  • Symphyotrichum novi-belgii 'Eva'
  • Symphyotrichum novi-belgii 'Farncombe Lilac'
  • Symphyotrichum novi-belgii 'Fellowship'
  • Symphyotrichum novi-belgii 'Flamingo'
  • Symphyotrichum novi-belgii 'Freya'
  • Symphyotrichum novi-belgii 'Gulliver'
  • Symphyotrichum novi-belgii 'Heinz Richard'
  • Symphyotrichum novi-belgii 'Helen Ballard'
  • Symphyotrichum novi-belgii 'Jean'
  • Symphyotrichum novi-belgii 'Jeanette'
  • Symphyotrichum novi-belgii 'Jenny'
  • Symphyotrichum novi-belgii 'Kassel'
  • Symphyotrichum novi-belgii 'Lady Frances'
  • Symphyotrichum novi-belgii 'Lady in Blue'
  • Symphyotrichum novi-belgii 'Lassie'
  • Symphyotrichum novi-belgii 'Little Boy Blue'
  • Symphyotrichum novi-belgii 'Little Pink Beauty'
  • Symphyotrichum novi-belgii 'Little Pink Lady'
  • Symphyotrichum novi-belgii 'Little Pink Pyramid'
  • Symphyotrichum novi-belgii 'Madge Cato'
  • Symphyotrichum novi-belgii 'Marie Ann Neil'
  • Symphyotrichum novi-belgii 'Marie Ballard'
  • Symphyotrichum novi-belgii 'Mauve Magic'
  • Symphyotrichum novi-belgii 'Peter Chiswell'
  • Symphyotrichum novi-belgii 'Pride of Colwall'
  • Symphyotrichum novi-belgii 'Priory Blush'
  • Symphyotrichum novi-belgii 'Professor Anton Kippenberg'
  • Symphyotrichum novi-belgii 'Red Sunset'
  • Symphyotrichum novi-belgii 'Remembrance'
  • Symphyotrichum novi-belgii 'Rosenwichtel'
  • Symphyotrichum novi-belgii 'Royal Ruby'
  • Symphyotrichum novi-belgii 'Schneekissen'
  • Symphyotrichum novi-belgii 'Snowsprite'
  • Symphyotrichum novi-belgii 'Terry's Pride'
  • Symphyotrichum novi-belgii 'Timsbury'
  • Symphyotrichum pilosum var. pringlei 'Monte Cassino'
  • Symphyotrichum 'Coombe Fishacre'
  • Symphyotrichum 'Little Carlow' (cordifolium hybrid)
  • Symphyotrichum 'Pixie Dark Eye' (ericoides hybrid)
  • Symphyotrichum 'Rose Queen'
  • Symphytum caucasicum
  • Symphytum ibericum
  • Symphytum officinale
  • Symphytum × uplandicum 'Bocking 14'
  • Symphytum 'Hidcote Blue'
  • Symphytum 'Hidcote Pink'
  • Symphytum 'Hidcote Variegated' (v)
  • Symphytum 'Lambrook Sunrise'
  • Syringa meyeri 'Palibin'
  • Syringa tomentella
  • Syringa vulgaris 'Andenken an Ludwig Späth'
  • Syringa vulgaris 'Charles Joly' (d)
  • Syringa vulgaris 'Katherine Havemeyer' (d)
  • Syringa vulgaris 'Madame Lemoine' (d)
  • Syringa vulgaris 'Sensation'
  • Syringa × josiflexa 'Bellicent'
  • Tagetes lucida
  • Tamarix ramosissima
  • Tamarix tetrandra
  • Tanacetum balsamita
  • Tanacetum balsamita subsp. balsamita
  • Tanacetum balsamita subsp. balsamitoides
  • Tanacetum camphoratum
  • Tanacetum coccineum Robinson's giant-flowered
  • Tanacetum parthenium
  • Tanacetum parthenium 'Aureum'
  • Tanacetum parthenium double white-flowered (d)
  • Tanacetum ptarmiciflorum 'Silver Feather'
  • Tanacetum vulgare
  • Tanacetum vulgare 'All Gold'
  • Tanacetum vulgare var. crispum
  • Tasmannia lanceolata 'Suzette' (v)
  • Taxus baccata
  • Taxus baccata Aurea Group
  • Taxus baccata 'Dovastonii Aurea' (m or f/v)
  • Taxus baccata 'Fastigiata' (f)
  • Taxus baccata Fastigiata Aurea Group
  • Taxus baccata 'Repens Aurea' (v)
  • Telekia speciosa
  • Tellima grandiflora Rubra Group
  • Teucrium chamaedrys L.
  • Teucrium chamaedrys 'Rose'
  • Teucrium fruticans 'Azureum'
  • Teucrium hircanicum 'Purple Tails'
  • Teucrium marum
  • Teucrium scorodonia
  • Teucrium scorodonia 'Crispum'
  • Teucrium × lucidrys
  • Teucrium × lucidrys 'Lucky Gold' (PBR)
  • Thalictrum aquilegiifolium
  • Thalictrum delavayi
  • Thalictrum delavayi 'Hewitt's Double' (d)
  • Thalictrum minus 'Adiantifolium'
  • Thalictrum 'Black Stockings'
  • Thelypteris palustris
  • Thermopsis lupinoides
  • Thuja occidentalis 'Amber Glow'
  • Thuja occidentalis 'Danica'
  • Thuja occidentalis 'Ericoides'
  • Thuja occidentalis 'Holmstrup'
  • Thuja occidentalis 'Little Gem'
  • Thuja occidentalis 'Rheingold'
  • Thuja occidentalis 'Sunkist'
  • Thuja occidentalis 'Yellow Ribbon'
  • Thuja plicata 'Atrovirens'
  • Thuja plicata 'Aurea'
  • Thuja plicata 'Collyer's Gold'
  • Thuja plicata 'Martin'
  • Thuja plicata 'Rogersii'
  • Thuja plicata 'Stoneham Gold'
  • Thujopsis dolabrata 'Nana'
  • Thujopsis dolabrata 'Variegata' (v)
  • Thymus caespititius
  • Thymus cilicicus ambig.
  • Thymus citriodorus ambig.
  • Thymus herba-barona
  • Thymus herba-barona 'Lemon-scented'
  • Thymus longicaulis
  • Thymus polytrichus A. Kern. ex Borbás subsp. britannicus (Ronniger) Kerguélen
  • Thymus pulegioides
  • Thymus pulegioides 'Archer's Gold'
  • Thymus pulegioides 'Aureus'
  • Thymus pulegioides 'Bertram Anderson'
  • Thymus pulegioides 'Foxley' (v)
  • Thymus pulegioides 'Kurt'
  • Thymus pulegioides 'Tabor'
  • Thymus serpyllum 'Annie Hall'
  • Thymus serpyllum 'East Lodge'
  • Thymus serpyllum 'Elfin'
  • Thymus serpyllum 'Goldstream' (v)
  • Thymus serpyllum L.
  • Thymus serpyllum 'Minor'
  • Thymus serpyllum 'Pink Chintz'
  • Thymus serpyllum 'Red Carpet'
  • Thymus serpyllum 'Russetings'
  • Thymus serpyllum 'Snowdrift'
  • Thymus serpyllum var. albus
  • Thymus serpyllum 'Vey'
  • Thymus vulgaris
  • Thymus vulgaris 'Compactus'
  • Thymus vulgaris English, winter
  • Thymus (Coccineus Group) 'Purple Beauty'
  • Thymus 'Bressingham'
  • Thymus 'Caborn Wine and Roses'
  • Thymus 'Carol Ann' (v)
  • Thymus Coccineus Group
  • Thymus 'Coccineus Major'
  • Thymus 'Doone Valley' (v)
  • Thymus 'Golden King' (v)
  • Thymus 'Golden Queen' (v)
  • Thymus 'Hartington Silver' (v)
  • Thymus 'Jekka'
  • Thymus 'Lemon Curd'
  • Thymus 'Lilac Time'
  • Thymus 'Orange'
  • Thymus 'Peter Davis'
  • Thymus 'Pink Ripple'
  • Thymus 'Porlock'
  • Thymus 'Rainbow Falls' (v)
  • Thymus 'Redstart'
  • Thymus 'Silver Posie'
  • Thymus 'Silver Queen' (v)
  • Tiarella cordifolia
  • Tiarella 'Iron Butterfly' (PBR) (v)
  • Trachelospermum asiaticum
  • Trachelospermum asiaticum 'Golden Memories'
  • Trachelospermum asiaticum 'Summer Sunset'
  • Trachelospermum jasminoides
  • Trachelospermum jasminoides 'Major'
  • Trachelospermum jasminoides 'Variegatum' (v)
  • Tradescantia virginiana 'Alba'
  • Tradescantia (Andersoniana Group) 'Blue Stone'
  • Tradescantia (Andersoniana Group) 'J.C. Weguelin'
  • Tradescantia (Andersoniana Group) 'Osprey'
  • Tradescantia (Andersoniana Group) 'Rubra'
  • Tradescantia (Andersoniana Group) 'Sweet Kate'
  • Tricyrtis formosana
  • Tricyrtis formosana 'Variegata' (v)
  • Tricyrtis 'White Towers'
  • Trifolium pratense
  • Trollius chinensis 'Golden Queen'
  • Trollius europaeus
  • Trollius × cultorum 'Canary Bird'
  • Trollius × cultorum 'Lemon Queen'
  • Trollius × cultorum 'Orange Princess'
  • Trollius × cultorum 'Taleggio'
  • Trollius 'Dancing Flame'
  • Tulbaghia violacea 'Silver Lace' (v)
  • Ugni molinae 'Flambeau' (v)
  • Umbilicus oppositifolius
  • Umbilicus oppositifolius 'Jim's Pride' (v)
  • Uncinia rubra 'Belinda's Find' (PBR)
  • Uncinia uncinata rubra
  • Vaccinium macrocarpon (F)
  • Valeriana jatamansi
  • Valeriana montana
  • Valeriana officinalis
  • Valeriana phu 'Aurea'
  • Veltheimia bracteata
  • Verbascum bombyciferum
  • Verbascum chaixii 'Album'
  • Verbascum olympicum
  • Verbascum thapsus
  • Verbena bonariensis
  • Verbena hastata
  • Verbena macdougalii 'Lavender Spires'
  • Verbena officinalis
  • Verbena rigida
  • Veronica austriaca subsp. teucrium
  • Veronica austriaca subsp. teucrium 'Crater Lake Blue'
  • Veronica austriaca subsp. teucrium 'Royal Blue'
  • Veronica gentianoides
  • Veronica gentianoides 'Tissington White'
  • Veronica longifolia 'Blauriesin'
  • Veronica longifolia 'Marietta' (PBR)
  • Veronica montana 'Corinne Tremaine' (v)
  • Veronica prostrata
  • Veronica prostrata 'Lilac Time'
  • Veronica prostrata 'Loddon Blue'
  • Veronica prostrata 'Mrs Holt'
  • Veronica prostrata 'Nestor'
  • Veronica prostrata 'Rhapsody in Blue'
  • Veronica prostrata 'Spode Blue'
  • Veronica prostrata 'Trehane'
  • Veronica saturejoides
  • Veronica spicata
  • Veronica spicata 'Heidekind'
  • Veronica spicata 'Rotfuchs'
  • Veronica spicata 'Sightseeing'
  • Veronica spicata subsp. incana
  • Veronica spicata subsp. incana 'Nana'
  • Veronica spicata subsp. orchidea
  • Veronica umbrosa 'Georgia Blue'
  • Veronica wormskjoldii
  • Veronica × media First Love = 'Alllove' (PBR)
  • Veronica 'Pink Damask'
  • Veronica 'Shirley Blue'
  • Veronicastrum sibiricum
  • Veronicastrum virginicum
  • Veronicastrum virginicum 'Album'
  • Veronicastrum virginicum 'Erica'
  • Veronicastrum virginicum f. roseum 'Pink Glow'
  • Veronicastrum virginicum 'Lavendelturm'
  • Vesalea floribunda
  • Viburnum carlesii
  • Viburnum davidii (f)
  • Viburnum davidii (m)
  • Viburnum farreri 'Candidissimum'
  • Viburnum opulus
  • Viburnum opulus 'Xanthocarpum'
  • Viburnum plicatum f. tomentosum 'Mariesii'
  • Viburnum rhytidophyllum
  • Viburnum sargentii 'Onondaga'
  • Viburnum tinus
  • 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 'Eskimo'
  • Vinca difformis
  • Vinca difformis 'Jenny Pym'
  • Vinca major
  • Vinca major var. oxyloba
  • Vinca major 'Variegata' (v)
  • Vinca minor 'Argenteovariegata' (v)
  • Vinca minor 'Azurea Flore Pleno' (d)
  • Vinca minor 'Bowles's Variety'
  • Vinca minor 'Burgundy'
  • Vinca minor f. alba 'Alba Variegata' (v)
  • Vinca minor f. alba 'Gertrude Jekyll'
  • Vinca minor 'Illumination' (v)
  • Vinca minor 'Multiplex' (d)
  • Vinca minor 'Ralph Shugert' (v)
  • Viola cornuta
  • Viola cornuta Alba Group (C)
  • Viola cucullata
  • Viola cucullata 'Alba' (Vt)
  • Viola hederacea
  • Viola odorata (Vt)
  • Viola odorata 'Alba' (Vt)
  • Viola odorata Rosea Group (Vt)
  • Viola pubescens var. eriocarpa
  • Viola riviniana Purpurea Group
  • Viola tricolor
  • Viola 'Bowles's Black' (T)
  • Viola 'Coeur d'Alsace' (Vt)
  • Viola 'Duchesse de Parme' (dPVt)
  • Viola 'D'Udine' (dPVt)
  • Viola 'Isabel'
  • Viola 'Königin Charlotte' (Vt)
  • Viola 'Lianne' (Vt)
  • Viola 'Lydia Groves' (Vt)
  • Viola 'Molly Sanderson' (Va)
  • Viola 'Mrs Pinehurst' (Vt)
  • Viola 'Mrs R. Barton' (Vt)
  • Viola 'Reine des Blanches' (dVt)
  • Viola 'The Czar' (Vt)
  • Viola 'Vita' (Va)
  • Visnaga daucoides
  • Vitex agnus-castus f. alba 'Silver Spire'
  • Vitis vinifera 'Baresana' (G/W)
  • Vitis vinifera 'Muscat of Alexandria' (G/W)
  • Vitis vinifera 'Purpurea' (O/B)
  • Vitis vinifera 'Vroege van der Laan' (O/W)
  • Vitis Seibel 13053 (O/B)
  • Vitis 'Brant' (O/B)
  • Vitis 'Fragola' (O/R)
  • Waldsteinia ternata
  • Weigela florida Monet = 'Verweig' (PBR) (v)
  • Weigela florida 'Foliis Purpureis'
  • Weigela florida 'Versicolor'
  • Weigela 'Abel Carrière'
  • Weigela 'Bristol Ruby'
  • Weigela 'Bristol Snowflake'
  • Weigela 'Florida Variegata' (v)
  • Weigela 'Kosteriana Variegata' (v)
  • Weigela 'Looymansii Aurea'
  • Weigela 'Praecox Variegata' (v)
  • Weigela 'Snowflake'
  • Westringia fruticosa
  • Westringia fruticosa 'Variegata' (v)
  • Wisteria floribunda f. alba 'Shiro-noda'
  • Wisteria floribunda f. multijuga
  • Wisteria floribunda f. rosea 'Hon-beni'
  • Wisteria floribunda 'Geisha'
  • Wisteria floribunda 'Kuchi-beni'
  • Wisteria floribunda 'Yae-kokuryu' (d)
  • Wisteria sinensis
  • Wisteria sinensis 'Pink Ice'
  • Wisteria sinensis 'Prolific'
  • Wisteria sinensis var. sinensis f. alba
  • Wisteria × formosa 'Caroline'
  • Wisteria × valderi 'Burford'
  • Woodsia obtusa
  • Woodsia polystichoides
  • Xerochrysum bracteatum 'Dargan Hill Monarch'
  • Yucca filamentosa
  • Yucca filamentosa 'Variegata' (v)
  • Yucca flaccida 'Golden Sword' (v)
  • Yucca flaccida 'Ivory'
  • Yucca gloriosa 'Variegata' (v)
  • Zantedeschia aethiopica
  • Zantedeschia aethiopica 'Crowborough'
  • Zantedeschia aethiopica 'Green Goddess'
  • Zantedeschia rehmannii
  • Zantedeschia 'Festival' (PBR)
  • Zantedeschia 'Mango'
  • Zantedeschia 'Nightlife' (PBR)
  • Zingiber mioga
  • Zingiber mioga 'Dancing Crane' (v)

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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.