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)
Other details: This plant is attractive to bees, butterflies and/or birds Average Water Needs; Water regularly; do not overwater
Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Patent Information: Non-patented
Propagation Methods: From seed; direct sow outdoors in fall From seed; winter sow in vented containers, coldframe or unheated greenhouse From seed; sow indoors before last frost From seed; direct sow after last frost
Seed Collecting: Allow pods to dry on plant; break open to collect seeds
On Feb 11, 2008, Dodsky from Smiths Grove, KY (Zone 6b) wrote:
I've grown Creme De Cassis for a few years. I like the flowers, they are quite eye-catching, but the plant overall looks tattered and can be downright ugly from mid-summer onward. Summers in S. Central KY are generally hot and sometimes quite humid, so perhaps it just doesn't like the weather here. lol I planted it towards the back of a flowerbed so the ugly foliage is partially hidden by other nicer looking perennials.
So far no rust problems, but various caterpillars, beetles, and spider mites attack this plant every year. My plant receives full sun from sunup to around noon in its east exposure location, and receives sufficient water from a drip system. It typically gets about 5-6 feet tall and definitely requires staking.
I've enjoyed the flowers despite the overall lackluster performance of the plant. Most of the flowers are double with some singles ocassionally mixed in.
On Aug 23, 2004, ownedbycats from Southern, NH (Zone 5b) wrote:
I started from seed last year, and it bloomed this year.
This plant has been said to grow in the following regions:
Auburn, Alabama Toney, Alabama Hesperia, California Los Angeles, California Santa Ana, California Fox Chase, Kentucky Smiths Grove, Kentucky Sandown, New Hampshire Ramblewood, New Jersey Mesquite, New Mexico Elba, New York West Winfield, New York Cleveland Heights, Ohio Greenwich, Ohio Knoxville, Tennessee Amelia Court House, Virginia Buchanan, Virginia Kalama, Washington