Aconitum carmichaelii 
Aconitum lycoctonum 
Actaea pachypoda 
Adiantum pedatum 
Agave virginica 
Ajuga 'Chocolate Chip' 
Allium tricoccum 
Allium angulosum 'Summer Beauty' 
Allium cernuum 
Allium cyathophorum var farreri 
Allium pulchellum 
Allium senescens glaucum 
Allium stellatum 
Allium triquetrum 
Allium tuberosum 
Alstroemeria psittacina 
Amsonia hubrichtii 
Amsonia tabernaemontana 
Anemonella thalictroides 
Angelica polymorpha 
Antennaria plantaginifolia 
Antennaria solitaria 
Apios americana 
Aplectrum hymale 
Aquilegia canadense 
Arisaema dracontium 
Arisaema triphyllum 
Aruncus dioicus 
Asarum canadense 
Asarum caudatum 
Asclepias incarnata 
Asclepias quadrifolia 
Asclepias tuberosa 
Asplenium platyneuron 
Aster divaricatus 
Aster 'Purple Dome' 
Aster tataricus 
Astrantia major 
Bergenia ciliata 
Border Hostas 
Caltha palustris 
Camassia scilloides 
Campanula 'Constellation' 
Campanula 'Joan Elliott' 
Carex appalachica 
Carex eburnea 
Carex elata 'Bowles Golden' 
Carex flacca 
Carex grayi 
Carex laxiculmis 
Carex laxiculmis 'Glaucum' 
Carex oshimensis 'Evergold' 
Carex pendula 
Carex pennsylvanica 
Carex 'The Beatles' 
Carex woodii 
Caryopteris divaricata 
Caulophyllum thalictroides 
Chamaelirium luteum 
Cheilanthes lanosa 
Chelone Lyoni 
Chelone glabra 
Chrysanthemum 'Becky' 
Chrysogonum virginianum 
Cimicifuga racemosa 
Claytonia caroliniana 
Claytonia sibirica 
Claytonia virginica 
Clintonia umbellulata 
Codonopsis lanceolata 
Collinsonia canadense 
Convallaria majalis 
Convallaria montana 
Crocosmia 'Elizabethan Gardens' 
Cyclamen coum 
Cyclamen hederifolium 
Cymophyllus fraseri 
Cyrtanthus elatus 
Danthonia spicata 
Delphinium tricorne 
Dennstaedtia punctilobula 
Dentaria diphylla 
Dentaria laciniata 
Deschampsia caespitosa 
Dianthus japonicus 
Dicentra cucullaria 
Dicentra canadense 
Digitalis lutea 
Digitalis parviflora 
Dioscorea quaternata 
Diphylleia cymosa 
Disporopsis pernyi 
Disporum lanuginosum 
Disporum maculatum 
Dodecatheon meadia 
Dryopteris intermedia 
Dryopteris marginalis 
Erigenia bulbosa 
Eryngium yuccafolium 
Erythronium albidum 
Erythronium americanum 
Euphorbia 'Autumn Sunset' 
Euphorbia 'Jessie' 
Festuca subverticillata 
Galax aphylla 
Galtonia candicans 
Gentiana andrewsii 
Geranium macrorrhizum 
Geranium maculatum 
Geranium 'Walters Gift' 
Geum Georgenburg 
Geum triflorum 
Gladiolus 'Boone' 
Gladiolus x gandavensis 
Goodyera pubescens 
Hedyotis longifolia 
Hedyotis nigricans 
Hedyotis purpurea 
Helleborus foetidus 
Helleborus foetidus "Miss Jekyll' 
Helleborus foetidus 'Frenchy' 
Helleborus foetidus 'Marlene' 
Helleborus foetidus 'Silvertooth' 
Helleborus foetidus 'Sopron' 
Helleborus foetidus 'Wester Flisk' 
Helleborus x hybridus 
Helleborus x hybridus'Sunshine Selections' 
Helleborus x hybridus'Sunshine Spectaculars' 
Hemerocallis thunbergii 
Hepatica acutiloba 
Hepatica acutiloba 'Sunsilver' 
Hepatica americana 
Heuchera americana 
Heuchera 'David' 
Heuchera 'Raspberry Regal' 
Heuchera villosa 
Hexastylis arifolium 
Hexastylis contracta 
Hexastylis shuttleworthii 
Hexastylis splendens 
Hexastylis virginica 
Hosta helianoides 
Hosta 'Pacific Blue Edger' 
Hosta Rock Princess 
Hydrastis canadensis 
Hydrophyllum virginianum 
Hymenocallis caroliniana 
Hypoxis hirsuta 
Iris cristata 
Iris cristata alba 
Iris Louisiana 
Iris Verna 
Iris virginica 
Iris virginica tetraploid 
Isopyrum biternatum 
Jeffersonia diphylla 
Juncus tenuis 
Kniphofia thompsonii snowdenii 
Lamiastrum galeobdolon "Hermans Pride' 
Liatris aspera 
Liatris microcephela 
Lilium superbum 
Lobelia cardinalis 
Lobelia siphilitica 
Lonicera sempervirens 
Lonicera sempervirens 'John Clayton' 
Lonicera sempervirens 'Magnifica' 
Lonicera sempervirens. 'Alabama Crimson' 
Luzula acuminata 
Luzula multiflora 
Lysimachia nummularia 'Aurea' 
Maianthemum canadense 
Marshallia grandiflora 
Mazus reptans 
Medeola virginica 
Meehania cordata 
Mertensia virginica 
Mitchella repens 
Mitella diphylla 
Narcissus 'Bowles Early Sulphur' 
Nothoscordum bivalve 
Ophiopogon planiscapus nigrescens 
Osmunda Cinnamomea 
Osmunda claytoniana 
Osmunda regalis 
Oxalis crassipes 
Oxalis crassipes alba 
Pachysandra procumbens 
Panax trifolius 
Pediomelum subacaulis 
Peltandra virginica 
Penstemon calycosus 
Penstemon 'Ruby Tuesday' 
Penstemon smallii 
Phlomis sp 
Phlox amoena 
Phlox divaricata 
Phlox divaricata 'London Grove Blue' 
Phlox divaricata 'May Breeze' 
Phlox glaberrima 'Morris Berd' 
Phlox paniculata 'Jeana' 
Phlox pilosa 
Phlox stolonifera 
Phlox subulata 
Phlox subulata 'Emerald Blue' 
Phlox subulata 'Emerald Pink' 
Phystostegia virginiana 
Pinellia tripartita 
Podophyllum peltatum 
Polemonium repens 
Polygonatum biflorum 
Polygonatum canaliculatum 
Polystichum acrostichoides 
Porteranthus trifoliatus 
Primula Dawn Ansell 
Primula japonica 
Primula japonica 'Millers Crimson' 
Primula japonica 'Postford White' 
Primula Marie Crousse 
Primula 'Quakers Bonnet' 
Primula sieboldii 
Primula Vivid 
Pycnanthemum muticum 
Rhexia virginica 
Ruellia humilis 
Sanguinaria canadensis 
Sanguisorba tenuifolia atropurpurea 
Saruma henryi 
Sasa veitchii 
Saxifraga stolonifera 
Saxifraga virginica 
Schizostylis coccinea 'Big Mama' 
Scilla scilloides 
Sedum ternatum 
Sempervivum varieties 
Senecio aureus 
Silene virginica 
Sisyrinchium angustifolium 'Swanee' 
Smilacina Racemosa 
Solidago caesia 
Solidago graminifolia 
Solidago ulmifolia 
Spigelia marilandica 
Spiranthes cernua f.odorata 'Chadds Ford' 
Sporobolus heterolepis 
Stylophorum diphyllum 
Symplocarpus foetidus 
Symplocarpus foetidus 
Talinum calcaricum 
Thalictrum lucidum 
Thalictrum minus adiantifolium 
Tiarella cordifolia 
Tipularia discolor 
Tradescantia ohioensis 
Tradescantia subaspera 
Tradescantia virginiana 
Tricyrtis 'Snow Fountain' 
Trillium cuneatum 
Trillium erectum 
Trillium grandiflorum 
Trillium luteum 
Trillium pusillum 
Trillium recurvatum 
Trillium sessile 
Uvularia grandiflora 
Uvularia perfoliata 
Uvularia sessilifolia 
Veratrum viride 
Viola canadensis 
Viola cucculatta 'Freckles' 
Viola palmata 
Viola pedata 
Viola pubescens 
Viola rostrata 
Viola rotundifolia 
Waldsteinia fragarioides 
Xanthorhizza simplicissima 
Zephyranthes candida 
Zizia aurea