Dark green leaves form an upright plant through most of the summer months, creating a great background for other spring and summer flowers. Come late summer, large buds form on the stem tips and deep blue-violet flowers bloom throughout September. Great massed to create cover for many critters.
Unique, deep blue flowers in late summer and fall
Petals never open so the flower looks like a bud
Bumblebees are strong enough to push past the closed petals
Foliage and roots are bitter-tasting, herbivores leave it alone
Slow growing but long lived perennial
Once established, needs little care
Moist woods from Quebec south to Tennessee and North Carolina
Rain gardens are a useful way for homeowners as well as businesses to reduce runoff. Water is captured by a rain garden's appropriate native plants giving it a chance to slowly filter into the ground, reducing erosion and waterway pollution.
Prefers well-drained soils and part shade to full sun with slightly acidic to alkaline soils.