Chionodoxa forbesii ‘Blue Giant’ (glory of the snow ‘Blue Giant’)

Chionodoxa sardensis (Turkish glory of the snow)

Clematis tangutica ‘Bill Mackenzie’ (golden clematis ‘Bill Mackenzie’)

Cotinus obovatus (American smoke tree)

Crataegus crus-galli var. inermis (cockspur hawthorn)

Cyprepedium acaule (pink lady’s slipper)

Deschampsia cespitosa ‘Goldtau’ (tufted hair grass ‘Goldtau’)

Dicentra cucullaria (Dutchman’s breeches)

Digitalis ferruginea (rusty foxglove)

Echinacea simulata (wavyleaf purple coneflower)