Androsace sarmentosa 'Chumbyi'
Malus x 'Jade Bouquet'
Prunus 'Brookgold'
Picea pungens 'Fastigiata'
Rosa spinosissima x 'Porter's Double Altai'
Rosa rugosa x 'Mrs. John McNab'
Rosa x 'Indian Head'
Rosa spinosissima x 'Kilwinning'
Rosa x 'Conestoga'
Rosa x 'Quadra'
Rosa x 'Paprika'
Rosa x 'Harison's Yellow'
Rosa x 'Waskasoo'
Rosa x 'Strawberry Crush'
Rosa x 'Easy Peasy'
Rosa rugosa x 'Lac Majeau'
Rosa x 'Polywon'
Rosa x 'Nuits de Young'
Rosa x 'Tuscany'
Rosa rugosa x 'George Will'
Rosa rugosa x 'Rita Bugnet'
Rosa rugosa x 'Betty Bugnet
Rosa x 'Navy Lady'
Rosa x 'Italian Ice'
Malus x 'Spring Snow'
Sorbus hybrida
Juniperus scopularum 'Blue Arrow'
Rosa x 'Yukon Sun'
Rosa x 'Scarlet Ranger'
Rosa 'Red Dawn x Suzanne'
Rosa x 'Pax Apollo'
Rosa rugosa x 'Agnes'
Rosa x 'Skinner's red leaf perpetual'
Rosa rugosa x 'Keewatin'
Rosa x 'Louis Riel'
Rosa x 'Prairie Sweetheart'
Rosa x 'Prairie Wren'
Rosa spinosissima x 'Haidee'
Rosa spinosissima var. 'Yellow Altai'
Rosa x 'Prairie Youth'
Rosa rugosa x 'Louise Bugnet'
Rosa x 'Will Alderman'
Rosa x 'Wilbur'
Rosa x 'Assiniboine'
Rosa x 'Riches'
Rosa x 'Betty Bland'
Lilium martagon 'Maroon King'
Lilium martagon 'Esquire'
Lilium martagon 'Tsingense'
Lilium martagon 'Gaybird'
Lilium martagon 'Sontsing'
Lilium martagon 'Sing Out'
Lilium martagon 'Rose Arch'
Lilium martagon 'Rosalinda'
Lilium martagon 'Redpath'
Lilium martagon 'Pepper Gold'
Lilium martagon 'Moonyeen'
Lilium martagon 'Hantsing'
Lilium martagon 'Guinea Gold'
Lilium martagon 'Chernova'
Lilium martagon 'Brotsing'
Lilium martagon 'Amelita'
Lilium martagon 'Sarcee'
Lilium martagon 'Pink Taurade'
Lilium martagon 'Pink Attraction'
Lilium martagon 'Orange Marmalade'
Lilium martagon 'Megan Evans'
Lilium martagon 'Mary Liss'
Lilium martagon 'Mahogany Bells'
Lilium martagon 'Ivory Gem'
Lilium martagon 'Golden Green'
Lilium martagon 'Cadense'
Lilium martagon 'Fred Tarlton'
Lilium martagon 'Sweet Betsy'
Townsendia exscapa
Townsendia hookeri
Townsendia incana
Townsendia montana
Townsendia rothrockii
Townsendia sp.
Townsendia spatulatha
Tradescantia
Tradescantia 'Bilberry Ice'
Trollius chinensis 'Golden Queen'
Trollius pumilus
Trollius x cultorum 'Lemon Queen'
Trollius x cultorum 'New Moon'™
Trollius x cultorum 'Orange Crest'
Tulipa tarda
Ulmus americana
Ulmus americana 'Patmore'
Vaccinium corymbosum 'Northland'
Vaccinium 'Northblue'
Valeriana supina
Verbascum spp.
Veronica 'Wizard of AHHS'
Veronica 'Pink Potion'
Veronica prostrata
Veronica 'Purpleicious'
Veronica spicata
Veronica spicata 'Red Fox'
Veronica spicata 'Sunny Border Blue'
Veronica 'White Wands' Hybrid
Veronica whitleyi
Veronicastrum virginicum
Veronicastrum virginicum 'Fascination'
Viburnum opulus
Viburnum x rhytidophylloides 'Redell'
Vinca minor
Vinca minor 'Atropurpurea'
Vinca minor 'Evelyn'
Vinca minor 'Illumination'
Vitacella 'Huldine'
Vitaliana primuliflora
Vitus 'Valiant'
Weigela florida 'Centennial'
Weigela florida 'Minuet'
Weigela florida 'Red Prince'
Weigela spp.
Wisteria macrostachya 'Blue Moon'
Yucca glauca
Zizia aptera
Solidago 'Crown of Rays'
Solidago missouriensis
Solidago rigida
Solidago spp.
Sorbaria Sem
Sorbaria sorbifolia 'Levgreen'
Sorbaria sorbifolia 'Sem'
Sorbus americana
Sorbus aucuparia
Sorbus aucuparia 'Rossica'
Spiraea betulifolia 'Tor Gold'
Spiraea japonica 'Goldmound'
Spiraea japonica 'Little Princess'
Spiraea japonica 'Matgold'
Spiraea japonica 'Shirobana'
Spiraea japonica 'SMNSJMFR'
Spiraea nipponica 'Snowmound'
Spiraea prunifolia
Spiraea trilobata
Spiraea x bumalda 'Denistar'
Spiraea x bumalda 'Goldflame'Spiraea japonica 'Goldflame'
Spiraea x vanhouttei 'Renaissance'
Sporobulus heterolepis
Stachys macrantha
Stachys spathulata
Streptopus amplexifolius
Symphicarpos albus
Syringa palibiniana
Syringa patula 'Miss Kim'
Syringa reticulata 'Ivory Silk'
Syringa vulgaris
Syringa vulgaris 'Charles Joly'
Syringa vulgaris 'Madame Lemoine'
Syringa vulgaris 'Sensation'
Syringa vulgaris 'Wedgewood Blue'
Syringa x 'Bailbelle'
Syringa x 'Penda'
Syringa x prestoniae
Syringa x prestoniae 'James McFarlane'
Tanacetum coccineum
Taxus cuspidata 'Morden'
Taxus x media 'Hicksii'
Taxus x media 'Hillii'
Telesonix jamesii
Thalictrum delavayi 'Hewitt's Double'
Thalictrum rochebruneanum
Thlaspi minimum
Thymus serpyllum
Tiarella 'Spring Symphony'
Salvia 'Pink Dawn'
Salvia spp.
Salvia sylvestris 'Caradonna'
Salvia sylvestris 'May Night'
Salvia x superba Merleau TM
Salvia x sylvestris 'Blue Queen'
Sambucus canadensis 'Aurea'
Sambucus nigra 'Eva'
Sambucus nigra 'Gerda'
Sambucus racemosa
Sambucus racemosa 'Sutherland'
Saponaria ocymoides
Saxifraga cf porophyllum
Saxifraga crustata
Saxifraga juniperifolia
Saxifraga paniculata
Saxifraga sp.
Saxifraga sp. (early)
Saxifraga x cochlearifolia
Scabiosa columbaria Flutter TM Deep Blue
Scabiosa japonica
Scabiosa spp.
Schizachne purpurascens
Schizachyrium scoparium
Scilla siberica 'Spring Beauty'
Scutellaria alpina
Sedum 'Autumn Joy'