Canna 'Sémaphore'
Asarum europaeum
Amsonia hubrichtii
Fouquieria splendens
Amaranthus tricolor and cvs.
Tiarella 'Spring Symphony'
Heuchera 'Pink Lipstick'
Heuchera ‘TNHEU042’
Athyrium niponicum var. pictum 'Burgundy Lace'
Eucomis comosa
Sciadopitys verticillata
Tsuga canadensis
Colocasia esculenta ‘Thailand Giant’
Rosa 'Frau Dagmar Hastrup'
Chamaecyparis nootkatensis 'Pendula'
Thalictrum kiusianum
Phormium tenax
Salvia officinalis 'Tricolor'
Solenostemon scutellarioides ‘Little Twister’
Kalimeris yomena
Tiarella 'Mint Chocolate'
Hydrangea quercifolia ‘Snowflake’
Ocimum  × citriodorum 'Pesto Perpetuo'
Ipomoea batatas 'Margarita'
Vitis vinifera ‘Purpurea’
Verbascum bombyciferum
Athyrium filix-femina ‘Vernoniae Cristatum’
Dalea greggii
Penstemon digitalis 'Husker Red'
Ilex vomitoria
Amelanchier  × grandiflora 'Autumn Brilliance'
Tiarella wherryi 'Oakleaf'
Stephanandra incisa ‘Crispa’
Geranium sanguineum var. striatum
Polemonium reptans 'Stairway to Heaven'
Pennisetum spathiolatum
Pulmonaria saccharata 'Mrs. Moon'
Tetrapanax papyrifer
Trachelium caeruleum
Dianthus 'Neon Star'
Colocasia esculenta 'Hilo Bay'
Nicotiana glauca
Hedera helix and cvs.
Corydalis solida
Oxalis oregana
Liriope muscari ‘Variegata’
Euphorbia rigida
Salvia dorrii
Cordyline hybrida var. JURred 'Festival™ Burgundy'
Ilex × meserveae 
Beta vulgaris 'Ruby Red'
Dyckia fosteriana 'Cherry Cola'
Cordyline australis 'Purple Tower'
Bouteloua gracilis 'Hachita'
Juniperus horizontalis 'Wiltonii'
Thalictrum aquilegiifolium
Solenostemon scutellarioides 'Religious Radish'
Ipomoea batatas 'Pink Frost'
Chamaecrista fasciculata
Vinca minor 'Illumination'
Sisyrinchium striatum
Adiantum venustum
Thalictrum isopyroides
Sambucus racemosa ‘Sutherland Gold’
Corydalis ochroleuca
Colocasia esculenta 'Black Magic'
Rhododendron williamsianum
Ilex 'Nellie R. Stevens'
Verbena speciosa 'Imagination'
Rumex sanguineus
Corydalis elata
Rodgersia aesculifolia
Marrubium incanum
Tropaeolum majus 'Milk Maid'
Elymus arenarius
Thalictrum rochebruneanum
Helleborus orientalis
Melianthus major
Solenostemon scutellarioides 'Aurora'
Colocasia esculenta 'Black Beauty'
Heuchera 'Marmalade'
Podophyllum peltatum
Setcreasea pallida 'Purple Heart'
Fagus sylvatica 'Purple Fountain'
Loropetalum chinense f. rubrum 'Carolina Midnight'
Heuchera 'Amber Waves’
Viburnum  × burkwoodii 'Conoy'
Corydalis flexuosa 'China Blue'
Helleborus 'Ivory Prince'
Hibiscus 'Kopper King'
Polystichum munitum
Strobilanthes dyerianus
Abelia  × grandiflora 'Confetti'
Cephalotaxus harringtonia 'Korean Gold'
Solenostemon scutellarioides 'Sedona'
Hosta 'Blue Shadows'
Acer palmatum 'Wolff'
Carex muskingumensis ‘Oehme’
Cercis canadensis 'Forest Pansy'
Tricyrtis formosana