Frost Tolerance: Might need some protection in winter
Sun Exposure: Full sun, tolerates light shade
Origin: Central and eastern USA
Growth Habits: Herbaceous perennial, 3 to 5 feet tall (90-150 cm), 2 to 4 feet spread (60-120 cm); hairy stems; lance-shaped gray-green basal leaves, up to 4 inches long (10 cm), stem leaves smaller.
Flowers: Blue flowers
Watering Needs: Little water in summer
Propagation: Seeds, cuttings in early summer, division in the spring or fall
Blooming Habits:
Sky blue flowers, 1 inch long (2.5 cm), on dense terminal spikes, in summer to fall.
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