Hardiness: 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: Sun to Partial Shade
Bloom Color: White/Near White
Bloom Time: Mid Spring
Foliage: Grown for foliage Silver/Gray Burgundy
Other details: Average Water Needs; Water regularly; do not overwater This plant is resistant to deer Suitable for growing in containers
Soil pH requirements: 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline) 7.9 to 8.5 (alkaline)
On Aug 26, 2010, cathleenb from Amherst, OH (Zone 5b) wrote:
I'm in zone 5b (Amherst OH) and I must say this is the only heuchera that's been able to stand our terribly hot & sunny summer this year. I had 4 heuchera in my full sun bed and Stormy Seas never showed wilt, sunburned leaves, nor "crisping", like the others did. SS has been in its present location for 3 years. I'm moving the others, but SS will stay put.
As far as heuchera go, it has smaller size leaves, but spreads quickly enough to make up for it. A true tough Heuch!
The leaf design and color variations make this a striking plant to add to your low light garden spots. This year, however, due i am assuming, to the large quantity of rain in the Virginia area, the heuchera have died randomly due to what looks like a fungus. Difficult to save once the black, sooty appearance begins to damage the plant.
On Apr 13, 2003, M_Bond from Belmont, CA (Zone 10a) wrote:
This heuchera looks gorgeous all year; the leaf color is a wonderful accent to the garden.
This plant has been said to grow in the following regions:
Vandiver, Alabama Merced, California Redwood City, California Denver, Colorado Country Club Estates, Georgia Durham, Maine East Tawas, Michigan Silver Lake, Minnesota Elba, New York Amherst, Ohio Huber Heights, Ohio Oklahoma City, Oklahoma East Norriton, Pennsylvania Pittsburgh, Pennsylvania Hendersonville, Tennessee Knoxville, Tennessee Montpelier, Vermont Big Stone Gap, Virginia Lexington, Virginia Brewster, Washington Kalama, Washington Despard, West Virginia Appleton, Wisconsin (2 reports) Minocqua, Wisconsin Owen, Wisconsin