Abutilon 'Aphrodite'
Abutilon 'Kentish belle'
Achillea millefolium 'Wonderful Wampee'
Agapanthus 'Black magic'
Agastache 'Astello indigo'
Agastache nepetoides
Ajuga reptans 'Catlin's Giant'
Alchemilla mollis
Allium cepa var. viviparum
Allium cristophii
Allium obliquum
Allium 'Purple Sensation'
Allium 'Red Mohican'
Allium siculum
Allium 'Summer Beauty'
Allium tuberosum
Aloe striatula
Aloe vera
Anemone leveillei
Angelica pachycarpa
Asclepias fascicularis
Aster oblongifolius 'Raydon's favorite'
Aster 'Vasterival'
Astilbe chinensis 'Lovely Day'
Astilbe japonica 'Happy Spirit'
Astrantia major 'Roma'
Baumea rubiginosa 'variegata'
Begonia 'Torsa'
Beschorneria yuccoides
Buddleja curviflora
Cautleya spicata
Catananche caerulea
Centranthus ruber 'coccineus'
Chiastophyllum oppositifolium
Chrysanthemum 'Duchess of Edimburg'
Cistus x skanbergii
Colquhounia coccinea
Crocosmia 'Emily Mckenzie'
Crocosmia paniculata 'Cally sword'
Cyrtonium fortunei
Delphinium 'Dusky Maidens'
Delphinium 'Pagan Purple'
Digitalis 'Glory of Roundway'
Digitalis purpurea 'Apricot'
Diplarrena moraea
Echium fastuosum
Elsholtzia flava
Epimedium x warleyense
Erigeron karvinskianus
Eucalyptus globulus
Euphorbia ceratocarpa
Euphorbia charachias ssp. wulfenii
Euphorbia 'Portuguese velvet'
Fritillaria uva-vulpis
Furcrea parmentieri
Geranium 'Coombland White'
Geranium 'Dreamland'
Geranium himalayense 'Gravetye'
Geranium cinereum 'Rothbury Gem'
Geranium maderense 'Guernsey White'
Geranium 'Rothbury Red'
Geranium 'Rozanne'
Gladiolus communis ssp. byzantinus
Helleborus argutifolius
Hemerocallis citrina
Hemerocallis 'Green Arrow'
Hemerocallis 'Primal Scream'
Hemerocallis 'Radiant Greetings'
Hemerocallis 'Sugar Candy'
Humulus lupulus 'Cascade'
Ipheion 'Charlotte Bishop'
Iris kaempferi
Iris pseudata 'Yukiyanagi'
Iris sibirica 'Chartreuse Bounty'
Iris sibirica 'Miss Apple'
Iris x hollandica 'Sapphire Beauty'
Kniphofia linearifolia
Kniphofia 'Moonstone'
Liatris spicata 'Floristan violet'
Liatris spicata 'Floristan white'
Libertia formosa
Lobelia cardinalis 'White Cardinal'
Lobelia siphilitica
Lychnis coronaria 'Gardener's World'
Meconopsis x sheldonii 'Lingholm'
Michauxia campanuloides
Michelia figo
Narcissus poeticus recurvus
Nepeta 'Cat's Pajamas'
Nepeta nervosa
Omphalodes nitida
Panicum 'Northwind'
Passiflora x 'Lavender lady'
Pelargonium endlicherianum
Persicaria amplexicaulis 'Blackfield'
Persicaria amplexicaulis 'Orangefield'
Persicaria amplexicaulis 'Rosea'
Phlox paniculata 'Bright Eyes'
Primula alpicola var. alpicola
Primula frondosa
Primula pulverulenta
Ratibida mexicana
Rodgersia 'Bronze Peacock'
Rubus lineatus
Rudbeckia 'American Goldrush'
Salvia argentea
Salvia 'Mulberry Jam'
Salvia nemorosa 'Merleau Rose'
Sanguisorba 'All Time High'
Sanguisorba canadensis 'Chatto'
Sanguisorba 'Cangshan Cranberry'
Sanguisorba officinalis 'CCC'
Sedum 'Cape blanco'
Sedum 'Moonlight Serenade'
Sedum makinoi 'Ogon'
Sedum 'Orange Xenox'
Sedum 'Purple Emperor'
Sedum 'Thunderhead'
Setaria palmifolia
Sidalcea candida 'Bianca'
Sidalcea 'Rosaly'
Silene dioica 'Ray's Golden Campion'
Silene dioica 'Valley High'
Sisyrinchium 'Quaint and Queer'
Stipa ichu
Strobilanthes attenuata ssp. nepalensis
Strobilanthes penstemonoides
Tetrapanax papyrifera 'Rex'
Thalictrum flavum glaucum
Thalictrum 'Hewitt's double'
Tritonia securigera
Tulbaghia cernua
Verbena bonariensis
Vernonia noveboracensis 'White Lightning'
Zanthoxylum simulans
