Baptisia ‘Purple Smoke’ (false indigo ‘Purple Smoke’)

Calamintha nepeta subsp. nepeta (calamint)

Camassia leichtlinii ‘Alba’ (quamash ‘Alba’)

Chionodoxa luciliae ‘Violet Beauty’ (glory of the snow ‘Violet Beauty’)

Chionodoxa sardensis (Turkish glory of the snow)

Dalea purpurea (purple prairie clover)

Echinacea purpurea (purple coneflower)

Echinacea simulata (wavyleaf purple coneflower)

Eryngium x zabelii ‘Big Blue’ (sea holly ‘Big Blue’)

Eryngium yuccifolium (rattlesnake master)