Passiflora caerulea
Corydalis linstowiana
Hamelia patens
Eucomis comosa
Rosa 'Prosperity'
Colocasia esculenta ‘Thailand Giant’
Stewartia pseudocamellia
Bouteloua gracilis 'Hachita'
Achillea 'Moonshine'
Heliotropium arborescens 'Marine'
Ruellia elegans
Sambucus racemosa ‘Sutherland Gold’
Hosta 'Patriot'
Magnolia ashei
Schizachyrium scoparium
Acanthus mollis 'Tasmanian Angel'
Helictotrichon sempervirens
Canna 'Sémaphore'
Euphorbia 'Black Bird'
Pleioblastus viridistriatus
Geranium maculatum 'Elizabeth Ann'
Penstemon strictus 'Bandera'
Heuchera 'Pink Lipstick'
Cornus alba 'Elegantissima'
Fallugia paradoxa
Rosa 'Basye's Purple'
Tiarella 'Black Snowflake'
Angelica pachycarpa
Canna 'Madame Paul Caseneuve'
Chasmanthium latifolium
Farfugium japonicum 'Aureomaculatum'
Salvia chamaedryoides
Actinidia kolomikta
Dryopteris tokyoensis
Cornus alba
Dalea frutescens
Polystichum makinoi
Corydalis lutea
Pennisetum alopecuroides
Hypericum frondosum ‘Sunburst’
Pieris japonica
Phellodendron amurense
Ilex × meserveae 
Illicium parviflorum
Phormium 'Amazing Red'
Hydrangea quercifolia ‘Snow Queen’
Loropetalum chinense f. rubrum 'Carolina Midnight'
Illicium mexicanum
Eragrostis chloromelas
Solenostemon scutellarioides ‘Orange King’
Cornus controversa 'Variegata'
Veitchia montgomeryana
Cercis canadensis 'Forest Pansy'
Verbascum bombyciferum
Tropaeolum majus 'Strawberries and Cream'
Heuchera 'Crimson Curls'
Amaranthus tricolor and cvs.
Thelypteris kunthii
Smyrnium perfoliatum
Salvia officinalis 'Tricolor'
Dryopteris celsa
Hydrangea quercifolia ‘Snowflake’
Humulus lupulus 'Aureus'
Bergenia cillata
Rosa 'Blanc Double de Coubert'
Carex siderosticha 'Variegata'
Amelanchier  × grandiflora 'Autumn Brilliance'
Acorus calamus ‘Variegatus’
Vitis vinifera ‘Purpurea’
Oxalis oregana
Polystichum acrostichoides
Colocasia esculenta 'Elena'
Sambucus nigra 'Gerda'
Prunus virginiana 'Schubert'
Kalimeris yomena
Carex morrowii  'Ice Dance'
Hydrangea macrophylla 'Variegata'
Eucomis comosa 'Sparkling Burgundy'
Stachys byzantina 'Silky Fleece'
Picea sitchensis 'Papoose'
Acer truncatum
Caryopteris incana 'Jason'
Caladium bicolor 'Freida Hemple'
Plectranthus ‘Mona Lavender’
Tulipa praestans 'Unicum'
Yucca glauca
Hypericum androsaemum 'Albury Purple'
Hedera helix and cvs.
Thymus polytrichus subsp. britannicus
Thalictrum rochebruneanum 'Lavender Mist'
Juniperus squamata 'Blue Star'
Chamaecyparis obtusa 'Aurea'
Helleborus 'Ivory Prince'
Juniperus horizontalis 'Wiltonii'
Heuchera 'Amethyst Myst'
Plectranthus forsteri 'Green on Green'
Viburnum  × burkwoodii 'Mohawk'
Carex elata 'Aurea'
Achillea ‘Coronation Gold’
Thalictrum delavayi 'Hewitt's Double'