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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: Bright Yellow Inconspicuous/none
Bloom Time: Late Summer/Early Fall Mid Fall
Foliage: Grown for foliage Silver/Gray Aromatic
Other details: May be a noxious weed or invasive Drought-tolerant; suitable for xeriscaping
Soil pH requirements: 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
On Jan 31, 2009, cheerpeople from northwest, IL (Zone 5a) wrote:
Requires no care at all. Can be yanked up (literally) and replanted if it grows out of bounds. If you haven't read Mrs. Greenthumbs book on this plant it's funny! Occasional success just putting cuttings in the ground as well. It is more die-hard here than A. 'Silvermound' much taller, and very white dried in a vase.
Interweaves well for photos of other plants.
On Jul 12, 2004, zorba from Lake George, MN (Zone 3a) wrote:
I use this plant (silver king) as a companion to white asiactic lillies and the effect is very calming. Both of these plants have been growing together for more than five years and look better each year. Both have very reliable in Zone 3a.
On Aug 5, 2003, MaryE from Baker City, OR (Zone 5b) wrote:
Spreads by underground roots, also by seeds. Has a strong odor when disturbed. The silvery spikes add interest to the garden and I love the combination of the silver with plants having purple flowers. A lot of it gets pulled up every year and there is still plenty. I have some in my flower beds and some in half barrels in a hot full sun location with mint and other herbs that were chosen because of purple flowers or grey-green or varigated leaves. It makes a nice combination of form and color.
On May 25, 2003, violabird from Barnesville, GA (Zone 8a) wrote:
Can be invasive but just pull it out! Love it for the tall accent and makes for wonderful wreaths and dried flower arrangements.
Regional...
This plant has been said to grow in the following regions:
Colorado Springs, Colorado Barnesville, Georgia Cordele, Georgia Stone Mountain, Georgia Chadwick, Illinois Lake George, Minnesota Mathiston, Mississippi Pascagoula, Mississippi Plainfield, New Jersey Roswell, New Mexico Deposit, New York Baker City, Oregon Norristown, Pennsylvania Toone, Tennessee Olympia, Washington Vancouver, Washington Charleston, West Virginia
5 members have or want this plant for trade.
