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Hardiness: USDA Zone 3a: to -39.9 °C (-40 °F) USDA Zone 3b: to -37.2 °C (-35 °F) USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F) USDA Zone 10a: to -1.1 °C (30 °F)
Sun Exposure: Full Sun
Danger: Pollen may cause allergic reaction
Bloom Color: Pale Yellow Inconspicuous/none
Bloom Time: Late Summer/Early Fall Mid Fall
Foliage: Grown for foliage Herbaceous Silver/Gray Aromatic
Other details: May be a noxious weed or invasive Drought-tolerant; suitable for xeriscaping Average Water Needs; Water regularly; do not overwater Self-sows freely; deadhead if you do not want volunteer seedlings next season
Soil pH requirements: 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Patent Information: Non-patented
Propagation Methods: By dividing the rootball From seed; sow indoors before last frost
On Jun 16, 2006, amg52amg from Davenport, IA wrote:
A few years ago I bought a single, scraggly stem at the end of the season, popped it in the ground, and forgot about it. The next summer I had multiple silver plants, and then the invasion began! This tall, simple plant provides striking contrast to barberries, evergreens, and cottoneasters. Volunteers are easy to pull - the more runner you pull, the better your control will be. I love it next to the hot, dusty road, where I also have self-seeding cleome.
On Jul 16, 2003, Bricca from Sugar Grove, NC wrote:
We love this plant for its ability to spread. Its silvery foliage is a gorgeous contrast to other greens. Grows in the worst of soils; seems to love rocky hillsides as well as the best soil. Very drought tolerant. No maintenance required; survived a very icy mountain winter too! A perfect perennial, just pull up the volunteers and stick them in the ground wherever you want a hardy touch of silver!
On Mar 10, 2001, Terry from Murfreesboro, TN (Zone 7a) wrote:
Upright perennial is native to midwest U.S. Aromatic, lance-shaped, silver-white leaves; in summer bears nondescript gray-white flower plumes. Has running roots; can be aggressive in well-drained soil. Very drought-tolerant.
Regional...
This plant has been said to grow in the following regions:
Dewey, Arizona Davenport, Iowa Plainfield, New Jersey Deposit, New York Sugar Grove, North Carolina Winston Salem, North Carolina Pottstown, Pennsylvania Conway, South Carolina Arlington, Texas Dallas, Texas Richmond, Texas