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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)
Sun Exposure: Full Sun
Danger: N/A
Bloom Color: Bright Yellow
Bloom Time: Mid Summer Late Summer/Early Fall Mid Fall Blooms repeatedly
Foliage: Herbaceous
Other details: Drought-tolerant; suitable for xeriscaping
On Oct 31, 2010, kdfisher from Ellijay, GA (Zone 7a) wrote:
Taken over by powdery mildew the first year bought through Lowes. Could be they are in a location that is blocked from breezes...poor air circulation. Waiting to see if they return in 2011.
Coreopsis grows very well in my NW garden, even in clay soil. If you want to see blooms, though, you'll have to stay on top of dead-heading. As an added bonus, it's known to attract lady bugs.
On May 19, 2007, efbiosis from Saint Louis, MO (Zone 6a) wrote:
This is a great plant for the mid border. Covers itself with fully double, bicolor blooms in late spring. Needs periodic shearing of spent blooms to keep the flowers coming; not affected by powdery mildew.
June 2007 edit: Some powdery mildew is blooming on interior leaves. Seems to respond well to systemic treatments. Butterflies love this plant and you'll need to dead head frequently as flowers will close quickly and begin to set seed.
Regional...
This plant has been said to grow in the following regions:
Athens, Illinois Pinconning, Michigan Saginaw, Michigan Baxter Estates, New York Richfield, Ohio Oklahoma City, Oklahoma Deschutes River Woods, Oregon Portland, Oregon Knoxville, Tennessee Petersburg, West Virginia Milwaukee, Wisconsin
One vendor has this plant for sale.
