Perennials

Agastache nepetoides 'Piet’s Form' 12

Ageratina altissima 'Chocolate' 10

Allium carinatum subsp. pulchellum 8

Allium 'Summer Beauty' 10

Allium senescens 8

Allium senescens subsp. glaucum 10

Althaea officinalis 8

Amsonia hubrichtii 10

Amsonia orientalis 10

Anemonella thalictroides 'Betty Blake' 15

Angelica 'Vicar's Mead' 8

Anthemis ‘E.C. Buxton’ 10

Anthemis ‘Sauce Hollandaise’ 10

Aquilegia canadensis 'Nana' 10

Aquilegia grata 10

Aquilegia micrantha var. grahamii 10

Aquilegia 'Tequila Sunrise' 10

Arnoglossum atriplicifolium 10

Baptisia bracteata 12

Calamintha nepeta subsp. nepeta 10

Camassia 'Blue Heaven' 12

Campanula incurva 10

Chiastophyllum oppositifolium 8

Codonopsis clematidea 10

Codonopsis ussuriensis 12

Convallaria majalis 10

Convallaria majalis 'Prolificans' 15

Convallaria 'Fernwood Golden Slippers' 20

Coreopsis tripteris 10

Crambe maritima 10

Dactylorhiza sp. 25

Echinacea pallida 10

Eryngium variifolium 12

Eryngium yuccifolium 12

Eurybia divaricata 10

Gentiana asclepiadea 15

Geranium macrorrhizum 'Bevan’s Variety' 10

Geranium macrorrhizum 'White Ness' 10

Glycyrrhiza yunnanensis 10

Helleborus multifidus subsp. bocconei 14

Iris confusa 'Martyn Rix' 13

Lathyrus niger 10

Lathyrus vernus 12

Lobelia siphilitica 8

Lysimachia paridiformis var. stenophylla 35

Molopospermum peloponnesiacum 18

Monarda punctata 10

Morina longifolia 10

Mukdenia rossii 10

Mukdenia rossii 'Herronswood Form' 15

Omphalodes nitida 10

Origanum laevigatum 'Herrenhausen' 10

Origanum laevigatum 'Rosenkuppel' 10

Origanum vulgare 'Ingolstadt' 10

Persicaria 'Pink Elephant' 12

Persicaria affinis 'Dimity' 7

Petrorhagia saxifraga 7

Peucedanum verticillare 10

Phlomis russeliana 10

Phlox 'Blue Moon' 8

Podophyllum hexandrum 14

Podophyllum peltatum 12

Polygonatum humile 10

Primula sieboldii 'Miho-no-Koji' 10

Primula sieboldii 'Sensyo' 10

Primula sieboldii 'Tatsuta-no-Yu' 10

Primula sieboldii 'White Wings' 10

Pycnanthemum muticum 8

Roscoea x beesiana 17

Salvia ‘Purple Rain’ 10

Salvia ‘Smouldering Torches’ 10

Smilacina racemosa var. amplexicaulis 10

Speirantha convallarioides 16

Symphyotrichum ‘Coombe Fishacre’ 12

Symphyotrichum ericoides 'Snow Flurry' 13

Symphyotrichum laeve ‘Calliope’ 12

Symphyotrichum novae-angliae 'Andenken an Alma Potschke' 12

Symphyotrichum oolentangiense 10

Symphyotrichum turbinellum 10

Telima grandiflora 8

Thalictrum delavayi var. decorum 12

Thalictrum isopyroides 10

Tricyrtis macrantha ssp. macranthopsis 25

Trillium luteum 16

Verbascum chaixii 'Album' 10

Verbena hastata 'Alba' 8

Verbena hastata 'Rosea' 8

Veronicastum virginicum 'Fascination' 12

Viola elatior 8

Viola jooi 6

Viola yedoensis 6