Baptisa australis

Baptisa x 'Purple Smoke'

Baptisia 'Carolina Moonlight'

Bergenia "New Hybrid"

Bergenia cord. 'Bressingham White'

Bergenia cordifolia

Bergenia cordifolia 'Winterglut'

Boltonia asteroides 'Snowbank'

Brunnera macrophylla

Brunnera macrophylla 'Hadspen Cream'

Brunnera macrophylla 'Jack Frost'

Brunnera macrophylla 'Langtrees'

Brunnera macrophylla 'Looking Glass'

Brunnera macrophylla 'Variegata'

Buddleia 'Adonis Blue'

Buddleia 'Peacock'

Buddleia 'Purple Emperor'

Caltha palustris

Campanula carpatica 'Blue Clips'

Campanula carpatica 'White Clips'

Campanula carpatica 'White Uniform'

Campanula glomerata 'Alba'

Campanula glomerata 'Joan Elliot'

Campanula glomerata 'Superba'

Campanula 'Kent Belle'

Campanula persicifolia

Campanula persicifolia 'Alba'

Campanula persicifolia 'Chettle Charm'

Campanula persicifolia 'George Chriswell'

Campanula portenschlagiana

Campanula poscharskyana

Campanula poscharskyana 'Blue Waterfall'

Campanula punctata 'Wedding Bells'

Carex 'Evergold'

Carex 'Gold Fountains'

Carex morrowii 'Ice Dance'

Caulophyllum thalictoides

Centaurea dealbata 'Rosea'

Centaurea montana

Centaurea montana 'Gold Bullion'

Chelone glabra

Chelone 'Hot Lips'

Chelone lyonii

Chelone obliqua

Cimicifuga

Cimicifuga 'Pink Spike'

Cimicifuga racemosa

Cimicifuga ramosa 'Atropurpurea'

Cimicifuga ramosa 'Brunette'

Cimicifuga ramosa 'Hillside Black Beauty'

Cimicifuga ramosa 'Pink Spike'

Claytonia caroliniana

Convallaria majalis

Convallaria majalis 'Bordeaux'

Coreopsis 'Golden Gain'

Coreopsis 'Limerock Passion'

Coreopsis rosea 'American Dream'

Coreopsis rosea 'Sweet Dreams'

Coreopsis vert. 'Moonbeam'

Coreopsis verticillata 'Crème Broulee'

Coreopsis verticillata 'Golden Showers'

Coreopsis verticillata 'Grandiflora'

Coreopsis verticillata 'Moonbeam'

Coreopsis verticillata 'Zagreb'

Coreopsis 'Zamfir'

Cornus canadensis

Corydalis 'Balckberry Wine'

Corydalis lutea

Cypripedium parviflorum var. pubescens

Cypripedium reginae

Delosperma 'John Proffitt'

Delosperma nubigenum 'Basutoland'

Delphinium 'Black Knight'

Delphinium 'Blue Bird'

Delphinium 'Connecticut Yankee'

Delphinium elatum 'Blue Lace'

Delphinium elatum 'Wilson's Flopless'

Delphinium Magic Fountains

Dendanthemum 'Harmony'

Dendanthemum 'Samba'

Dendranthema 'Bolero'

Dendranthema zawadskii 'Clara Curtis'

Dendranthema zawadskii 'White Clara'

Dianthus 'Bath's Pink'

Dianthus 'Crimson Treasure'

Dianthus deltoides 'Brilliant'

Dianthus deltoides 'Zing Rose'

Dianthus gratianopolitanus 'Feuerhexe'

Dianthus gratianopolitanus 'Mountain Mist'

Dianthus gratianopolitanus 'Tiny Rubies'

Dianthus 'Siskin Clock'

Dicentra 'Candy Hearts'

Dicentra eximia

Dicentra formosa 'Bacchanal'

Dicentra formosa 'Luxuriant'

Dicentra 'Ivory Hearts'

Dicentra 'King of Hearts'

Dicentra spect. 'Gold Heart'

Dicentra spectabilis

Dicentra spectabilis 'Alba'

Dictamnus albus 'Purpureus'

Digitalis ambigua

Digitalis parviflora 'Milk Chocolate'

Digitalis purpurea 'Foxy'

Dodecatheon meadia

Doronicum caucasicum 'Magnificum'

Doronicum 'Mme. Mason'

Doronicum o. 'Little Leo'