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2010 Perennial of the Year!
Blue spikes of pea-shaped flowers resemble the tall racemes of lupines in May and early June. A slow to mature, but very rewarding native garden perennial. In the early spring, it is one of the first plants to emerge, and the gray-green leaves quickly fill out into a substantial sized bush. The 10-12″ long, flowering stalks arise in the spring, carrying 1″ long, indigo-blue, pea-like flowers which last for about 4 weeks. Flowers will vary from light to deep indigo blue, the latter much preferable to the former. The flowers were once used indigo but are now simply viewed as good garden plants. Two to 2 ½ long brown to black pods appear in early summer and remain until the plant dies back in the fall.
Grows best in average to dry soil. Can withstand prolonged dry periods well once established. Physical support is recommended.
Upright, vase-shaped habit.
Blue green foliage.
Long, tapered spikes of blue-violet, pea-like flowers bloom in late spring to early summer.