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Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 367. Courtesy of Kentucky Native Plant Society. |
Recommended Temperature Zone:
sunset: 1-11,14-24,26,28-45
USDA: 3 to 8
Sun Exposure: Full sun, to some light shade
Origin: Eastern North America
Growth Habits: Herbaceous perennial, 2 to 3 feet tall (60-90 cm) or more, 0.5 to 1 feet spread (15-30 cm)
Watering Needs: Regular water, prefers moist, fertile soils; good drainage is important, particularly in winter
Propagation: Seeds (new plants take 2 years to flower), division in spring
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