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Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 132. |
Recommended Temperature Zone:
sunset: All zones
USDA: 3-9
Frost Tolerance: Dies back to the ground in winter
Heat Tolerance: Light shade in Phoenix
Sun Exposure: Full sun to light shade
Origin: North America, east of the Rockies
Growth Habits: Herbaceous perennial, 2 to 4 feet tall (60-120 cm), 2 to 3 feet spread (60-90 cm); fragrant leaves, 2 to 4 inches long (5-10 cm)
Watering Needs: Regular water, prefers moist, well drained, soil in summer, drier in winter
Propagation: Seeds sown in place in spring or fall, self-sows, cuttings of new growth in the spring
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