Abelia triflora
Abeliophyllum distichum
Acaena inermis ' Purpurea'
Acer japonicum' Aconitifolium'
Acer palmatum ' Akane'
Acer palmatum ' Deshojo'
Acer palmatum ' Shango-kaku'
Acer rubrum ' October Glory'
Agrostemma githago ' Pink Pearl'
Ajania pacifica
Ajuga ' Burgundy Ice'
Alcea x Althea ' Parkallée'
Allium caeruleum
Allium caesium
Allium callimischon var. haemostictum
Allium carinatum ssp. pulchellum
Allium hirtifolium
Amaranthus ' Golden Giant'
Anacamptis coriophora
Anemone nemorosa ' Stammerberg'
Anethum gravoelens
Angelica archangelica
Aquilegia ' Blue Star'
Arrhenatherum elatius ssp bulbosum 'Variegatum'
Aruncus aethusifolius
Arum ' Green Goddess'
Asclepias physocarpa
Astrantia ' Princesse Sturdza'
Aster cordifolius ' Silver Spray'
Aster novi-belgii ' Little Pink Lady'
Aster pringlei ' Blue Butterfly'
Aster pyraneus ' Lutetia'
Berberis thumbergii' Bagatelle'
Betula nigra
Bignonia capreolata
Buxux balearica
Calycanthus floridus
Camellia japonica ' Black Lace'
Camellia japonica ' Mrs Charles Cobb'
Camellia sasanqua ' Showa Supreme'
Camellia ' Pink Tinsie'
Campanula ' Beautyful Trust'
Campanula ' Burghaltii'
Campanula ' Pink Octopus'
Caryopteris divaricata
Catalpa x erubescens ' Purpurea'
Chaenomeles ' Espérance'
Chaenomeles speciosa ' Nivalis'
Chaenomeles x superba ' Boule de Feu'
Chasmanthium latifolium
Chimonobambusa tumidissinoda
Clematis ' Alba Luxurians'
Clematis ' Anna Louisa'
Clematis ' Apple Blossom'
Clematis ' Blue Dancer'
Clematis ' Blue Ravine'
Clematis ' Caroline'
Clematis ' Lady Di'
Clematis ' Venosa Violacea'
Coeloglossum viride
Comptonia peregrina
Cornus florida ' Cherokee Chief'
Corylus colurna ' Te-Terra Red'
Crataegus laevigata ' Crimson Cloud'
Crocus goulimyi
Crocus longiflorus
Cypella plumbea
Cypripedium calceolus var. virescens
Dichelostemma Ïda maya
Disporum smithii
Edgeworthia papyrifera
Epimedium acuminatum
Epimedium acuminatum ' Galaxy'
Epimedium ' Amber Queen'
Epimedium chlorandrum
Epimedium ecalcaratum
Epimedium epsteinii
Epimedium ' Fire Dragon'
Epimedium flavum
Epimedium hunanense
Epimedium ogisui
Epimedium x omeiense ' Emei Shan'
Epimedium ' Rik'
Epimedium rhizomatosum
Epimedium 'Pink Elf'
Epimedium ' x versicolor ' Sulphureum'
Epimedium x warleyense
Erodium ' Stephanie'
Erythronium dens-canis
Fuchsia procumbens
Galanthus ' Dionysus'
Galanthus ' Galatea'
Galanthus ' Hippolyta'
Galanthus' Wendy's Gold'
Geranium asphodeloides ' Starlight'
Geranium 'Blue Blood'
Geranium ' Dragon Heart'
Geranium himalayense ' Derrick Cook'
Geranium himalayense ' Plenum'
Geranium libanii x pelloponnesiacum
Geranium macrorrhizum ' Czakor'
Geranium macrorrhizum ' Ingwersen' s Variety'
Geranium macrorrhizum ' Lohfelden'
Geranium macrorrhizum ' White -Ness'
Geranium maculatum f. albiflorum
Geranium nervosum
Geranium nodosum ' Svelte Lilac'
Geranium phaeum ' Calligrapher'
Geranium phaeum ' Joan Baker'
Geranium ' Prelude'
Geranium pyrenaicum ' Isparta'
Geranium reflexum
Geranium rivulare
Geranium robertianum ' Celtic White'
Geranium sylvaticum ' Meran'
Hamamelis x intermedia ' Amanon'
Hamamelis x intermedia' Anne'
Hamamelis x intermedia ' Cyrille'
Hamamelis vernalis
Helleborus viridis
Hydrangea serrata ' Kurenai'
Iris ' Black Dragon'
Iris ' Gerald Darby'
Iris ' Honey Glazed'
Kniphofia ' Green Jade'
Kniphofia ' Wrexham Buttercup'
Lathyrus odoratus ' Midnight'
Leucadendron argenteum
Lindera obtusiloba
Lupinus mutabilis var. cruckshankii Blue Javelin
Lysimachia ' Snow Candles'
Mahonia gracilipes
Mahonia x lindseyana ' Cantab'
Mahonia x savilliana
Malus ' Indian Magic'
Malus transitoria
Matthiola longipetala ssp bicornis
Nandina domestica
Narcissus bulbocodium var. conspicuus
Narcissus ' Rip Van Winkle'
Nicandra physaloïdes
Nyssa sylvatica
Papaver commutatum ' Ladybird'
Parrotia persica
Parrotia persica ' Pendula'
Parrotia persica ' Vanessa'
Peltoboykinia watanabei
Persicaria amplexicaulis ' Cottesbrook Gold'
Phlox divaricata' May Breeze'
Platanthera bifolia
Rosa banksiae ' Lutea'
Rosa' Burgundy Ice'
Rosa ' Mme Grégoire Staechelin'
Salix x discolor
Salix helvetica
Sanguisorba ' Pink Bushes'
Schyzophragma hydrangeoides ' Rosea'
Sophora japonica ' Golden Standard'
Tetradium daniellii ( Hupense Group)
Thunbergia ' Blushing Suzy'
Tithonia rotundifolia
Triteleia ixioides ' Starlight'
Tulipa humilis pulchella ' Albacaerulea Oculata'
Tulipa ' Princesse Irène'
Viburnum bodnantense' Charles Lamont'
Viburnum carlcephalum
Viburnum carlesii
Viburnum macrocephalum ' Sterile'
Viburnum nudum ' Pink Beauty'
Viburnum plicatum ' Mary Milton'
Viburnum sielboldii
Viola soraria ' Freckles' 
Weigela middendorffiana
Wisteria venusta