Top of Page

G Acanthus spinosus *
E Achillea 'Credo' *
E Achillea 'Cloth of Gold' *
E Achillea 'Moonshine' *
C Achillea ptarmica 'Boule de Neige'
E Achillea 'Rose Madder'
E Achillea 'Terracotta'
G Aconitum 'Bressingham Spire' *
G Aconitum cammarum 'Bicolor' *
G Actaea matsumurae 'White Pearl'
N Actaea simplex 'Brunette' *
N Actaea simplex (Atropurpurea Group)
'James Compton'
G Adenophora stricta 'Sessilifolia'
H Agapanthus campanulatus 'Albidus '
H Agapanthus Headbourne hybrids
H Agapanthus 'Jack's Blue'
H Agapanthus 'Purple Cloud'
H Agapanthus 'Snowdrop'
H Agapanthus 'Streamline'
H Agapanthus 'Timaru'
E Agastache 'Firebird'
E Agastache 'Purple Candle'
C Alchemilla conjuncta
C Alchemilla mollis *
I Alstroemeria 'Golden Delight' *
I Alstroemeria 'Orange Glory' *
J Alstroemeria ' Ailco'
J Alstroemeria 'Phoenix'
J Alstroemeria 'Princess Ivana'
J Alstroemeria 'Princess Monica'
J Alstroemeria 'Princess Paola'
J Alstroemeria 'Princess Stephanie'
I Alstroemeria 'White Apollo'
C Anaphalis margaritacea 'Neuschnee'
G Anchusa azurea 'Loddon Royalist' *
G Anchusa azurea 'Opal'
G Anemone hupehensis 'Hadspen Abundance' *
G Anemone hupehensis var. japonica 'Prinz Heinrich' *
G Anemone x hybrida 'Andrea Atkinson'
G Anemone x hybrida 'Honorine Jobert' *
G Anemone x hybrida 'Konigin Charlotte' *
G Anemone x hybrida 'Richard Ahrens'
G Anemone x hybrida 'Robustissima'
G Anemone x hybrida 'Whirlwind'
B Anemone multifida
G Angelica gigas
C Anthemis tinctoria 'Kelwayi'
C Anthemis tinctoria 'Sauce Hollandaise'
C Anthemis tinctoria 'Wargrave Variety'
E Anthriscus sylvestris 'Ravenswing'
C Aquilegia chrysantha 'Yellow Queen'
C Aquilegia flabellata 'Blue Jewel' (Jewel Series)
C Aquilegia flabellata 'Pink Jewel' (Jewel Series)
C Aquilegia flabellata 'White Jewel' (Jewel Series)
C Aquilegia ‘Mrs Scott Elliotts’
C Aquilegia vulgaris 'Ruby Port'
C Aquilegia vulgaris 'Woodside'
C Aquilegia vulgaris 'William Guiness'
H Armoracia rusticana 'Variegata'
C Artemisia ludoviciana 'Silver Queen' *
G Artemisia 'Powis Castle' *
E Artemisia schmidtiana 'Nana' *
G Arum italicum subsp. italicum 'Marmoratum' *
G Aster amellus 'King George' *
G Aster amellus 'Rosa Erfullung'
G Aster amellus 'Veilchenkonigin' *
G Aster 'Coombe Fishacre' *
G Aster ericoides 'Erlkonig'
G Aster ericoides f. prostratus 'Snow Flurry' *
G Aster ericoides hyb. 'Ringdove'
G Aster ericoides 'Pink Cloud'
G Aster x frikartii 'Monch' *
G Aster lateriflorus 'Horizontalis' *
G Aster novi-belgii 'Audrey'
G Aster sedifolius
C Astibe x arendsii ‘Gertrud Brix’
C Astilbe 'Aphrodite'
C Astilbe 'Deutschland'
C Astilbe 'Europa'
C Astilbe 'Saxosa'
C Astilbe 'Sprite' *
C Astilbe ‘Straussenfeder’ (thunbergii hybrid) *
C Astilbe 'Willie Buchanan'
H Astrantia 'Celtic Star'
G Astrantia major 'Lars'
G Astrantia 'Hadspen Blood'
G Astrantia major 'Rubra'
G Astrantia major 'Ruby Wedding'
G Astrantia major 'Sunningdale Variegated' *
G Astrantia major var. rosea
G Baptisa australis 'Caspian Blue'
C Bergenia 'Abendglocken'
C Bergenia 'Abendglut'
C Bergenia 'Baby Doll'
C Bergenia cordifolia 'Purpurea' *
C Bergenia 'Silberlicht' *
G Brunnera macrophylla 'Jack Frost'
C Campanula carpatica 'Blaue Clips'
C Campanula carpatica f. alba 'Weisse Clips'
C Campanula glomerata var. acaulis
C Campanula glomerata var. alba
C Campanula glomerata 'Superba' *
E Campanula 'Hidcote Amethyst' *
E Campanula 'Kent Belle' *
E Campanula lactiflora 'Loddon Anna' *
E Campanula lactiflora 'Pouffe'
E Campanula lactiflora 'Prichard's Variety' *
E Campanula lactiflora 'White Pouffe'
E Campanula latiloba 'Highcliffe Variety' *
E Campanulas persicifolia 'Chettle Charm' *
E Campanula persicifolia 'Hampstead White'
E Campanula persicifolia 'Telham Beauty'
E Campanula persicifolia 'Wortham Belle'
C Campanula takesimana
C Centaurea hypoleuca 'John Coutts'
C Centaurea montana 'Alba'
C Centaurea montana 'Parham'
C Centranthus ruber 'Albus'
C Centranthus ruber var. coccineus
G Cephalaria gigantea
C Chrysanthemum 'Bronze Elegance'
C Chrysanthemum 'Innocence'
C Chrysanthemum 'Mei-kyo'
C Chrysanthemum 'Nantyderry Sunshine' *
C Chrysanthemum 'Purleigh White'
Cimicifuga varieties - see Actaea
E Coreopsis verticillata 'Grandiflora' *
E Coreopsis verticillata 'Moonbeam'
E Coreopsis verticillata 'Zagreb'
G Corydalis 'Peter David'
G Corydalis flexuosa 'Purple Leaf'
I Crambe cordifolia *
E Crocosmia x crocosmiiflora 'Dusky Maiden'
E Crocosmia x crocosmiiflora 'Emily McKenzie'
E Crocosmia x crocosmiiflora 'Saracen'
E Crocosmia x crocosmiiflora 'Solfatare' *
E Crocosmia x crocosmiiflora 'Star of the East'
E Crocosmia 'Lucifer' *
E Crocosmia 'Saracen'
E Crocosmia 'Severn Sunrise'
E Crocosmia 'Spitfire'
E Crocosmia 'Zeal Tan
G Cynara cardunculus *
C Dahlia 'Bishop of Llandaff' *
C Dahlia 'David Howard' *
C Dahlia 'Moonfire' *
C Dahlia 'Roxy'
C Dahlia 'Tally Ho' *
C Delphinium Black Knight Group
C Delphinium Blue Bird Group
C Delphinium Galahad Group
C Delphinium Guinevere Group
B Dianthus 'Diane' *
B Dianthus Doris' *
B Dianthus 'Miss Sinkins'
B Dianthus 'Strawberries and Cream'
B Dianthus 'Valda Wyatt' *
C Diascia barberae 'Ruby Fields' *
C Diascia integerrima *
C Diascia 'Lilac Belle' *
C Diascia vigilis 'Jack Elliott'
C Dicentra 'Bountiful'
C Dicentra formosa
C Dicentra formosa alba
C Dicentra 'King of Hearts'
C Dicentra 'Pearl Drops'
C Dicentra spectabilis *
C Dicentra spectabilis 'Alba' *
H Dierama 'Guinevere'
E Dierama igneum
H Dierama 'Lancelot'
H Dierama 'Merlin'
E Dierama pulcherrimum
H Digitalis purpurea 'Foxy Apricot' (Foxy Group)
H Digitalis purpurea 'Foxy Pink' (Foxy Group)
E Echinacea purpurea 'Kim's Mop Head'
E Echinacea purpurea 'Magnus'
E Echinacea purpurea 'Rubinstern'
E Echinacea purpurea 'Ruby Giant'
E Echinacea purpurea 'White Swan'
E Echinops bannaticus 'Taplow Blue' *
E Echinops ritro 'Veitch's Blue'
G Epimedium grandiflorum 'Lilafee'
G Epimedium 'Pink Elf'
G Epimedium pinnatum subsp. colchicum *
G Epimedium x perralchicum 'Frohnleiten'
G Epimedium x rubrum *
G Epimedium x versicolor 'Sulphureum' *
G Epimedium x warleyense 'Orangekonigin'
G Epimedium x youngianum 'Niveum' *
G Epimedium x youngianum 'Roseum'
C Erigeron 'Azurfee'
C Erigeron glaucus 'Dark Form'
C Erigeron glaucus 'Elstead Pink'
C Erigeron karvinskianus *
C Erigeron 'Rosa Juwel'
C Erigeron 'Schneewittchen'
G Eryngium giganteum *
G Eryngium alpinum 'Blue Star'
G Eryngium alpinum 'Superbum'
G Eryngium amethystinum
G Eryngium bourgatii 'Graham S Thomas'
G Eryngium planum 'Blauer Zwerg'
G Eryngium planum 'Fluela'
G Eryngium planum 'Seven Seas'
G Eryngium variifolium
G Euphorbia amygdaloides var. robbiae *
G Euphorbia characias subsp. wulfenii *
G Euphorbia cyparissias 'Fens Ruby'
G Euphorbia cyparissias 'Orange Man'
G Euphorbia griffithii 'Dixter' *
G Euphorbia polychroma *
G Euphorbia polychroma 'Candy'
G Euphorbia polychroma 'Lacy'
C Gaillardia 'Burgunder'
C Gaillardia 'Kobold'
D Gaura lindheimeri 'Siskiyou Pink'
G Gaura lindheimeri 'The Bride'
G Geranium 'Anne Thomson'
G Geranium 'Blue Sunrise'
G Geranium 'Bob's Blunder'
G Geranium x cantabrigiense 'Biokovo'
G Geranium cinereum 'Ballerina' *
G Geranium cinereum 'Giuseppii'
G Geranium cinereum 'Laurence Flatman'
G Geranium cinereum subsp. subcaulescens 'Splendens' *
G Geranium clarkei 'Kashmir Purple'
G Geranium clarkei 'Kashmir White' *
G Geranium dalmaticum *
G Geranium himalayense 'Gravetye' *
G Geranium himalayense 'Plenum'
G Geranium 'Johnson's Blue' *
D Geranium macrorrhizum
D Geranium macrorrhizum 'Czakor'
D Geranium macrorrhizum 'Ingwersen's Variety' *
G Geranium x magnificum *
G Geranium nodosum
G Geranium 'Phillippe Vapelle'
G Geranium pratense 'Mrs Kendall Clark' *
G Geranium pratense 'Plenum Caeruleum'
G Geranium pratense 'Plenum Violaceum' *
G Geranium pratense 'Purple Heron'
G Geranium renardii *
G Geranium renardii 'Tcschelda'
G Geranium x riversleaianum 'Mavis Simpson'
G Geranium x riversleaianum 'Russell Prichard' *
G Geranium sanguineum
G Geranium sanguineum 'Album' *
C Geum rivalei "Leonard's Variety'
G Geranium sanguineum 'Max Frei'
G Geranium sanguineum var. striatum *
G Geranium soboliferum
G Geranium 'Spring Fling'
G Geranium sylvaticum 'Album' *
G Geranium sylvaticum 'Mayflower' *
H Geranium wallichianum 'Buxton's Variety' *
G Geranium wlassovianum
C Geum 'Borisii'
C Geum 'Lady Stratheden' *
C Geum 'Mrs J. Bradshaw' *
C Geum 'Princes Juliana'
C Geum rivale 'Album'
E Gypsophila paniculata 'Compacta Plena'
E Gypsophila 'Rosy Veil'
G Helenium 'Biedermeier'
G Helenium 'Moerheim Beauty'
G Helenium 'Sahin's Early Flowerer'
G Helianthus 'Lemon Queen'
G Helleborus argutifolius *
E Helleborus foetidus *
E Helleborus hybridus apricot
E Helleborus hybridus maroon
E Helleborus hybridus 'Picotee'
E Helleborus hybridus pink
E Helleborus hybridus primrose
E Helleborus hybridus spotted pink
E Helleborus hybridus spotted white
E Helleborus orientalis Lam. subsp. guttatus

G Helleborus niger *
G Helleborus x sternii
C Hemerocallis 'Catherine Woodbery'
C Hemerocallis 'Eenie Allegro'
E Hemerocallis 'Frans Hals'
C Hemerocallis fulva 'Green Kwanso'
C Hemerocallis 'Golden Chimes' *
E Hemerocallis 'Hyperion'
C Hemerocallis lilioasphodelus *
C Hemerocallis 'Shooting Star'
C Hemerocallis 'Stafford'
G Hemerocallis 'Stella de Oro' *
C Hemerocallis 'Whichford' *
C Heuchera 'Amber Waves'
C Heuchera americana 'Ring of Fire'
C Heuchera 'Chocolate Ruffles'
C Heuchera 'Ebony and Ivory'
C Heuchera 'Fireworks' *
C Heuchera micrantha var. diversifolia
'Bressingham Bronze'
C Heuchera 'Petite Pearl Bouquet'
C Heuchera 'Petite Pearl Fairy'
C Heuchera 'Rachel'
C Heuchera 'Silver Scrolls'
E X Heucherella 'Silver Streak'
E X Heucherella 'Viking Ship'
G Hosta 'August Moon'
G Hosta 'Aureomarginata' (montana)
G Hosta fortunei var. albopicta *
G Hosta fortunei var. albopicta f. aurea *
G Hosta fortunei var. aureomarginata *
G Hosta 'Frances Williams' *
G Hosta 'Ginko Craig'
G Hosta 'Gold Edger'
G Hosta 'Gold Standard'
G Hosta 'Golden Prayers'
G Hosta 'Golden Tiara' *
G Hosta 'Great Expectations'
G Hosta 'Krossa Regal' *
G Hosta 'Love Pat' *
G Hosta 'Minuteman'
G Hosta 'Night Before Christmas'
G Hosta 'Patriot'
G Hosta 'Regal Splendor'
G Hosta 'Sagae' *
G Hosta 'Saint Elmo's Fire'
G Hosta 'Sum and Substance' *
G Hosta (Tardiana Group) 'Blue Wedgwood'
G Hosta (Tardiana Group) 'Halcyon' *
G Hosta 'Wide Brim' *
G Hosta 'Zounds'
C Incarvillea delavayi
E Incarvillea delavayi 'Snowtop'
C Knautia macedonica
E Knautia macedonica 'Mars Midget'
E Kniphofia 'Brimstone' *
E Kniphofia caulescens *
E Kniphofia 'Jenny Bloom'
E Kniphofia 'Little Maid' *
E Kniphofia 'Nancy's Red'
E Kniphofia 'Percy's Pride'
E Kniphofia 'Tawny King'
E Lactuca perennis
C Lamium galeobdolon 'Hermann's Pride'
C Lamium maculatum 'Chequers'
C Lamium maculatum 'Golden Anniversary'
C Lamium maculatum 'Pink Pewter'
C Lamium maculatum 'White Nancy' *
E Lathyrus vernus *
C Leucanthemum x superbum 'Aglaia' *
E Leucanthemum x superbum 'Barbara Bush'
C Leucanthemum x superbum 'Snowcap'
C Leucanthemum x superbum 'Sonnenschein'
E Liatris spicata 'Floristan Weiss'
E Liatris spicata 'Kobold'
C Libertia formosa
G Ligularia dentata 'Britt-Marie Crawford'
G Ligularia dentata 'Desdemona' *
G Ligularia przewalskii *
E Limonium platyphyllum
J Liriope muscari *
J Liriope muscari 'Majestic'
J Liriope muscari 'Monroe White'
J Liriope muscari 'Royal Purple'
G Lobelia 'Butterfly Blue'
G Lobelia 'Dark Crusader'
G Lobelia 'Queen Victoria' *
C Lupinus 'Chatelaine' (Band of Nobles Series)
C Lupinus 'Gallery Pink' (Gallery Series)
C Lupinus 'Gallery Red' (Gallery Series)
C Lupinus Minarette Group (Mixed)
C Lupinus 'Noble Maiden' (Band of Nobles Series)
C Lupinus 'The Governor' (Band of Nobles Series)
G Lysimachia ciliata 'Firecracker' *
G Lysimachia clethroides *
G Lysimachia punctata 'Alexander'
E Lythrum salicaria 'Blush'
E Lythrum salicaria 'Feuerkerze' *
E Lythrum virgatum 'Dropmore Purple'
E Monarda 'Aquarius'
E Monarda 'Balance'
E Monarda 'Fishes'
E Monarda 'Petite Delight'
E Monarda 'Sagittarius'
E Monarda 'Snow Queen'
E Monarda 'Squaw'
G Nemesia 'Fragrant Cloud'
E Nerine bowdenii 'Pink Triumph'
D Nepeta x faassenii
C Nepeta prattii
C Nepeta racemosa 'Little Titch'
D Nepeta racemosa 'Snowflake'
D Nepeta 'Six Hills Giant'
E Oenothera fruticosa 'Fyrverkeri' *
E Oenothera fruticosa subsp. glauca 'Erica Robin'
G Omphalodes cappadocica 'Cherry Ingram' *
C Origanum 'Kent Beauty'
G Origanum laevigatum 'Herrenhausen' *
G Origanum 'Rosenkuppel'
J Paeonia lactiflora 'Festiva Maxima' *
J Paeonia lactiflora 'Karl Rosenfield'
J Paeonia lactiflora 'Monsieur Jules Elie' *
J Paeonia lactiflora 'Sarah Bernhardt' *
G Papaver orientale 'Beauty Queen'
G Papaver orientale 'Black and White' *
G Papaver orientale (Goliath Group)
'Beauty of Livermere' *
G Papaver orientale 'Manhattan'
G Papaver orientale 'Mrs Perry' *
G Papaver orientale 'Patty's Plum'
G Papaver orientale 'Royal Wedding'
G Papaver orientale ‘Tiffany'
C Parahebe perfoliata *
E Penstemon 'Alice Hindley' *
E Penstemon 'Andenken an Friedrich Hahn' *
E Penstemon 'Apple Blossom' *
E Penstemon 'Blackbird'
E Penstemon 'Cherry' *
E Penstemon 'Evelyn' *
E Penstemon heterophyllus 'Blue Gem'
E Penstemon heterophyllus
'Catherine de la Mare' *
E Penstemon 'Hidcote Pink' *
E Penstemon 'Port Wine' *
E Penstemon 'Rubicundus' *
E Penstemon 'Firebird' *
E Penstemon 'Sour Grapes'
E Penstemon 'Stapleford Gem' *
E Penstemon 'Thorn'
E Penstemon 'White Bedder' *
E Persicaria affinis 'Darjeeling Red' *
E Persicaria affinis 'Donald Lowndes' *
G Phlox carolina 'Bill Baker'
G Phlox carolina 'Miss Lingard' *
G Phlox divaricata 'Blue Dreams'
G Phlox divaricata 'May Breeze'
G Phlox maculata 'Alpha' *
G Phlox maculata 'Natascha'
G Phlox maculata 'Omega' *
G Phlox maculata 'Roselinde'
C Phlox paniculata 'Blue Boy'
C Phlox paniculata 'Blue Ice' *
C Phlox paniculata 'Brigadier' *
C Phlox paniculata 'Discovery'
C Phlox paniculata 'Europe'
C Phlox paniculata 'Harlequin'
C Phlox paniculata 'Monica Lynden-Bell'
C Phlox paniculata 'Norah Leigh'
C Phlox paniculata 'Starfire'
C Phlox paniculata 'Tenor'
C Phlox paniculata 'White Admiral' *
C Physalis alkekengi var. franchetii
C Physostegia virginiana 'Red Beauty'
C Physostegia virginiana subsp.
speciosa 'Variegata'
C Physostegia virginiana 'Summer Snow' *
C Physostegia virginiana 'Vivid' *
C Platycodon grandiflorus albus
C Platycodon grandiflorus 'Mariesii' *
G Polemonium caeruleum 'Brise d'Anjou'
C Polemonium reptans 'Blue Pearl'
C Polemonium reptans 'Pink Dawn'
G Polygonatum x hybridum *
G Polygonatum odoratum var. pluriflorum 'Variegatum'
C Potentilla 'Gibson's Scarlet' *
C Potentilla nepalensis 'Miss Willmott' *
C Primula florindae *
C Primula 'Guinevere' *
C Primula vialii *
C Primula vulgaris *
C Prunella grandiflora 'Alba'
C Prunella grandiflora 'Loveliness' *
C Pulmonaria angustifolia subsp. azurea
C Pulmonaria 'Blue Ensign'
C Pulmonaria 'Diana Clare'
C Pulmonaria 'Majest'
C Pulmonaria 'Opal'
C Pulmonaria 'Sissinghurst White' *
C Pulmonaria 'Stillingfleet Meg'
E Rudbeckia fulgida var. sullivantii
'Goldsturm' *
E Rudbeckia 'Goldquelle'
E Rudbeckia 'Juligold'
E Salvia nemorosa 'Ostfriesland' *
F Salvia nemorosa 'Marcus'
E Salvia nemorosa 'Rose Queen'
E Salvia x sylvestris 'Mainacht' *
E Salvia uliginosa
E Salvia verticillata 'Purple Rain'
C Saxifraga fortunei 'Black Ruby'
C Saxifraga fortunei 'Cheap Confections'
C Saxifraga fortunei 'Mount Nachi'
E Scabiosa 'Butterfly Blue'
C Scabiosa caucasica 'Blausiegel'
C Scabiosa caucasica 'Clive Greaves' *
C Scabiosa caucasica 'Miss Willmott' *
C Scabiosa caucasica 'Stafa'
C Scabiosa 'Pink Buttons'
E Schizostylis coccinea 'Major' *
E Schizostylis coccinea 'Mrs Hegarty'
E Schizostylis coccinea 'Professor Barnard'
G Sedum 'Herbstfreude' *
G Sedum 'Purple Emperor'
G Sedum 'Ruby Glow' *
G Sedum spectabile 'Brilliant' *
G Sedum telephium 'Mohrchen'
C Sidalcea candida
C Sidalcea 'William Smith'
C Sisyrinchium 'Biscutella'
C Sisyrinchium 'Californian Skies'
G Sisyrinchium striatum 'Aunt May'
C Stachys byzantina 'Silver Carpet'
C Stachys macrantha
C Symphytum 'Goldsmith'
C Symphytum 'Lambrook Sunrise'
C Tellima grandiflora Rubra Group
E Teucrium hircanicum
E Thalictrum aquilegiifolium 'Purpureum'
E Thalictrum aquilegiifolium var. album
E Thalictrum delavayi 'Hewitt's Double' *
D Thymus pulegioides 'Aureus' *
E Tiarella 'Mint Chocolate'
E Tiarella 'Pink Bouquet'
C Tiarella wherryi *
E Tiarella wherryi 'Bronze Beauty'
C Tradescantia 'Blue and Gold'
C Tradescantia 'Concord Grape'
C Tradescantia 'Innocence'
C Tradescantia 'Isis' *
C Tradescantia 'Purple Dome'
G Verbascum 'Cotswold Beauty' *
G Verbascum 'Cotswold King'
G Verbascum 'Helen Johnson'
G Verbascum 'Pink Domino' *
G Verbascum 'White Domino'
G Verbascum phoeniceum 'Violetta'
C Verbena bonariensis
C Verbena hastate
C Verbena rigida *
C Veronica austriaca subsp. teucrium
'Crater Lake Blue' *
C Veronica gentianoides 'Variegata'
C Veronica peduncularis 'Georgia Blue'
C Veronica spicata subsp. incana
'Silver Carpet'
C Veronica x cantiana 'Kentish Pink'
E Veronicastrum virginicum album
E Veronicastrum virginicum 'Fascination'
E Veronicastrum virginicum 'Pink Glow'
C Viola 'Bowles Black'
C Waldsteinia ternata
H Zantedeschia aethiopica 'Crowborough' *
H Zantedeschia aethiopica 'Green Goddess' *
H Zantedeschia aethiopica 'Kiwi Blush'