Adiantum pedatum
Dryopteris filix-mas
Dryopteris marginalis
Matteuccia struthiopteris var. pensylvanica
Osmunda cinnamomea
Osmunda claytonia
Polystichum acrostichoides
Achillea ptarmica 'Ballerina'
Aconitum 'Ivorine'
Aconitum larmarckii
Allium senescens subsp. montanum var. glaucum
Allium thunbergii 'Ozawa'
Amsonia x 'Blue Ice'
Anemone multifida 'Rubra'
Aquilegia canadensis 'Little Lanterns'
Aquilegia 'White Star'
Arisaema triphyllum
Armeria 'Bloodstone'
Armeria maritima 'Alba'
Artemisia lactiflora 'Guizho'
Asarum canadense
Aster x dumosus 'Wood's Blue'
Bletilla striata 'Rosea'
Callirhoe alcaeoides 'Logan Calhoun'
Calylophus berlandieri 'Summer Gold'
Calylophus serrulatus 'Prairie Lode'
Campanula kemulariae
Carex grayi
Carex muskingumensis
Chiastophyllum oppositifolium 'Goldtropfchen'
Cimicifuga ramosa 'Brunette'
Clematis heracleifolia 'China Purple'
Cryptotaenia japonica forma atropurpurea
Desmanthus illinoensis
Dianthus 'Candy Dish'
Dicentra formosa 'Aurora'
Echinacea purpurea 'Doubledecker'
Echinacea purpurea 'Jade' PP#13,769
Echinacea purpurea 'Prairie Giant'
Echinacea purpurea 'Ruby Giant'
Echinacea purpurea 'Ruby Star'
Echinacea purpurea 'White Swan'
Eriophyllum lanatum
Erythronium americanum
Eupatorium purpureum 'Little Joe' PPAF
Gentiana dahurica
Geranium macrorrhizum
Geranium macrorrhizum 'Ingwersen's Variety'
Geranium psilostemon
Geranium renardii
Heliopsis helianthoides 'Prairie Sunset' PP#13,779
Helleborus niger
Heuchera americana 'Dale's Strain'
Hosta 'Grand Tiara'
Hosta 'Hoosier Harmony'
Hosta lancifolia
Hosta 'Last Dance'
Hosta 'Masquerade'
Hosta nigrescens
Hosta 'Pandora's Box'
Hosta plantaginea 'Aphrodite'
Hosta 'Stilletto'
Hosta 'Striptease'
Hosta 'Sugar and Cream'
Hosta 'Teaspoon'
Iris 'Black Suede'
Iris 'Little Sapphire'
Iris 'Serenity Prayer'
Kalimeris incisa 'Blue Star'
Liatris microcephala
Liatris microcephala 'Alba'
Lychnis coronaria 'Gardener's World'
Lychnis coronaria 'Maiden's Blush'
Nipponanthemum nipponicum
Penstemon smallii
Polygonatum humile
Primula japonica 'Miller's Crimson'
Scutellaria resinosa 'Smoky Hills'
Sedum 'Purple Emperor'
Silene regia
Tellima grandiflora
Tricyrtis formosana 'Amethystina'
Tricyrtis formosana 'Gilt Edge'
Tricyrtis formosana 'Purple Beauty'
Tricyrtis formosana 'Samurai'
Tricyrtis hirta 'Moonlight'
Tricyrtis 'Shirohotogisu'
Vinca minor 'Alba'
Vinca minor 'Dart's Blue'
Vinca minor 'La Grave'
Vinca minor 'Ralph Shugert' PP#6960
Vinca minor 'Sterling Silver'
Viola koreana 'Syletta'
Caryopteris divaricata 'Snow Fairy'
Caryopteris x clandonensis 'First Choice' PP#11,958
Clethra alnifolia 'Sixteen Candles'
Cotoneaster adpressus 'Tom Thumb'
Cotoneaster dammeri 'Mooncreeper'
Euonymus carnosus
Euonymus fortunei 'Kewensis'
Leptodermis oblonga
Philadelphus x lemoinei 'Manteau d'Hermine'
Sambucus nigra 'Witch's Broom'
Satureja montana
Thuja occidentalis 'Teddy'
Thuja plicata 'Can-can'
Ulmus parvifolia 'Seiju'