Hardiness: 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) USDA Zone 10b: to 1.7 °C (35 °F)
On Nov 13, 2006, VA_GARDEN from Hood, VA (Zone 7a) wrote:
Can be aggressive, I have to take a firm hand to keep it in bounds. Makes a nice ground cover under shrubs, but can choke out smaller, or fragile plants. The more shade it has, the more intense the blue tones are. Goes dormant in winter, but colors up quickly in the spring.
On Nov 9, 2003, dogbane from New Orleans, LA (Zone 9a) wrote:
Does quite well in damp shade. Can thin extensively in winter or dry conditions. Interesting ground cover for very small area.
This plant has been said to grow in the following regions:
Blue Mountain, Alabama Tuscaloosa, Alabama Bartow, Florida Bayport, Florida Jacksonville, Florida Loxahatchee, Florida Medulla, Florida Ocala, Florida Pensacola, Florida Blairsville, Georgia Loganville, Georgia Marietta, Georgia Villa Rica, Georgia New Orleans, Louisiana , New York Brevard, North Carolina Cape Carteret, North Carolina Elizabeth City, North Carolina Raleigh, North Carolina (2 reports) Chesterland, Ohio Cleveland, Ohio Ashley, Pennsylvania East Sumter, South Carolina Beaumont, Texas Central Gardens, Texas Jacksonville, Texas Hood, Virginia