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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)
Bloom Color: Rose/Mauve
Flower Fragrance: No fragrance
Bloom Shape: Single Flat
Bloom Diameter: Large - 5 to 8 inches (12 to 20 cm)
Bloom Time: Mid Spring
Sun Exposure: Sun to Partial Shade
Other details: This plant is attractive to bees, butterflies and/or birds Average Water Needs; Water regularly; do not overwater Flowers are good for drying and preserving
Danger: All parts of plant are poisonous if ingested Handling plant may cause skin irritation or allergic reaction
Pruning Groups: Group 2 - Repeat bloomers; prune immediately after flowering
Patent Information: Non-patented
Propagation Methods: By air layering By serpentine layering
Seed Collecting: Allow seedheads to dry on plants; remove and collect seeds N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
On May 27, 2009, Joan from Belfield, ND (Zone 4a) wrote:Editor's Note
Some resources list all parts of all Clematis species poisonous if ingested. The toxic principal is Anemonin, and symptoms after ingestion include intense burning sensation in the mouth and mouth ulcers.
Dermatitis and skin irritation has also been recorded, as have allergies and hay fever type symptoms from pollen inhalation.
We tend to err on the side of caution in PlantFiles, and the danger notation in the details above is to caution gardeners, parents and pet owners to look further for more information.
On May 18, 2006, merigold from Sioux City, IA (Zone 4b) wrote:
Planted 3 years ago. First two winters it got chopped down by somebody (bunnies I believe). But, always came back nicely. Last winter I protected the wood from the bunnies and this spring I'm getting a spectacular show. Packed with blooms!
On Jul 30, 2005, Marlina from Blaine, MN (Zone 4b) wrote:
I planted an asao in 2004 it didn't do much of anything the first year.It got one large bloom in the spring of 2005. I than cut it back to about 6 inches . It took off after that and reached about 10 to 15 feet or better and has about 20 flower buds on it right now 7/29/05. I am really excited about its second bloom...should be awsome..
On May 30, 2003, lupinelover from Grove City, OH (Zone 6a) wrote:
This cultivar, for me, seems to be prone to the clematis condition that makes the older stems die to the ground. It is vigorous in producing new ones, however, and it is a prolific bloomer. Reliably blooms from late April through mid May.
This plant has been said to grow in the following regions:
Capistrano Beach, California Mt Zion, Illinois Nilwood, Illinois Oak Lawn, Illinois Noblesville, Indiana Sioux City, Iowa Baton Rouge, Louisiana Mandeville, Louisiana Adamstown, Maryland Brighton, Michigan Minneapolis, Minnesota Southold, New York Grove City, Ohio Portland, Oregon Milford, Pennsylvania Pittsburgh, Pennsylvania Pickens, South Carolina Knoxville, Tennessee Bulverde, Texas Willis, Texas Marysville, Washington
2 vendors have this plant for sale.
