30 - 90 cm tall. Blue-purple pea-like flowers on a tall spike. bloom in June.
Great alternative to non native lupine. Short-lived perennial. Improves soil through nitrogen fixation.
Larval host for the Karner Blue butterfly (extirpated in Ontario), Wild Indigo Duskywing and Persius Duskywing (extirpated), Painted Lady, Frosted Elfin (extirpated), Orange Sulphur and Clouded Sulphur butterflies.
Great pollen source for bumblebees and medium sized bees. Provides no nectar.
 
Growing conditions:
Average to dry well drained, best sandy soil. Full sun to part shade.