Hardiness: 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) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F) USDA Zone 11: above 4.5 °C (40 °F)
Bloom Color: Scarlet (Dark Red)
Flower Fragrance: Slightly Fragrant
Bloom Shape: Single
Bloom Diameter: Large - 5 to 8 inches (12 to 20 cm)
Bloom Time: Mid Spring Late Summer/Early Fall
Sun Exposure: Light Shade
Other details: Average Water Needs; Water regularly; do not overwater Suitable for growing in containers
Pruning Groups: Group 2 - Repeat bloomers; prune immediately after flowering Group 3 - Summer/Fall bloomers; prune hard in early spring
Patent Information: Non-patented
Propagation Methods: From herbaceous stem cuttings From softwood cuttings From semi-hardwood cuttings By simple layering By air layering By tip layering
Seed Collecting: Bag seedheads to capture ripening seed Collect seedhead/pod when flowers fade; allow to dry Allow pods to dry on plant; break open to collect seeds N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
On May 12, 2013, Eldine from Wellsville, NY (Zone 4b) wrote:
This is my third summer with this plant. I bought it because the pictures showed a true red flower. However, its much darker than most pictures I've seen. Even so, its been very hardy in my zone 4 garden and growing like crazy this year.
On Apr 20, 2012, vossner from Richmond, TX (Zone 9a) wrote:
Niobe clematis is a multi-stemmed deciduous vine with a twining and trailing habit of growth. A relatively low maintenance vine. It is a strong bloomer in my garden, where it grows in full sun, inground. I read sources that categorize it as a Group 2 clematis and other sources that categorize it as a Group 3. In my garden, it is in full bloom in mid April, with scattered repeats.
On Apr 25, 2011, desertbunny from Organ, NM (Zone 7a) wrote:
I've grown this clematis for ~ 4 years--it gets better every year. This year it survived a bad winter with some uncharacteristic minus 14 degree nights! It blooms in March-April here and can manage in 30 degree changes of temp in a single day/night and in frequent 30 mph winds with gusts of 50 mph (lower part of plant on a trellis behind a 5' stone wall, but flowers exposed). It also survived my novice attempts since this was the first clematis I grew (have 6 now)! I'm uploading a pic of this year's status (4/11)
Love the burgandy, velvety flowers of this clematis! Try planting on a white picket fence for an outstanding display. It flourishes about 18" away from my air conditioning / gas heating unit. The warmth given off by the exhaust in the winter keeps it green most of the winter and the plant growth and bloom seems to take off earlier in the spring.
On Apr 27, 2008, kimberlihiggins from Little Rock, AR wrote:
I purchased my Niobe at a Farmers Association in spring of 2007. As normal for me it did not get planted until this spring. Terrible right? Well, even after wintering in its original nursery pot, once planted it took off.
My wife and I bought a start of this beautiful plant in February and had it growing indoors until spring. Come spring time we planted it outside with some nice mushroom compost where there was sun for the plant and shade for the roots.
Soon after planting, my wife accidentally clipped (don't ask how) the top of the vine off. Since then, and it's early September now, the plant hasn't done ANYTHING. It's not dead from what I can tell, but there has been NO growth.
On May 31, 2006, smkennedy from Minneapolis, MN (Zone 4a) wrote:
It is a great color, and gets lots of good comments from garden visitors. In zone 4a, it dies back mostly to the ground with no winter protection, but grows very fast to cover my split rail fence once growing season starts.
This is probably my favorite red clematis because of its rich velvety color and texture. It is a good growing plant with tons of blooms. Its main bloom time here is late spring/early summer with repeat blooms into late summer. I also like the foliage, however, it's had to see through the masses of flowers. (Introduced by Noll 1970)
On Jun 21, 2005, mellielong from Lutz, FL (Zone 9b) wrote:
I planted this last fall in zone9b. I know clematis aren't supposed to do much in their first year, but mine bloomed about a week ago. I have this one growing next to "Miss Bateman" (which also bloomed oddly enough) and I love how the flowers are similar but the colors contrast. Definitely easy to grow, I just made sure the roots are sheltered by my gardenia, and the tops are steadily making their way up the fence!
On Jun 21, 2005, cmccrell from Honeoye Falls, NY wrote:
This plant was already "at home" when we bought our house. It is planted at the base of an arbor over a step to our deck. Roots are shaded, arbor side faces southeast. The plant has not climbed more than halfway up the side of the arbor, but it has bloomed profusely beginning about May 20, and continues as of June 15.
On Nov 23, 2002, yvana from Stone Mountain, GA (Zone 7b) wrote:
This is a Jackmanii-type Clematis.
This plant has been said to grow in the following regions:
, Vincent, Alabama Little Rock, Arkansas Capistrano Beach, California Laguna Beach, California Laguna West-lakeside, California Los Angeles, California San Clemente, California San Francisco, California San Jose, California San Leandro, California Northford, Connecticut North Star, Delaware Talleyville, Delaware Clarkston, Georgia Stone Mountain, Georgia Hollister, Idaho Meridian, Idaho Hampton, Illinois Mount Prospect, Illinois Rockford, Illinois Washington, Illinois Carmel, Indiana Danville, Indiana Macy, Indiana Dubuque, Iowa Indianola, Iowa Sadieville, Kentucky Taylorsville, Kentucky Hammond, Louisiana Falmouth, Maine South China, Maine Spencer, Massachusetts Dearborn Heights, Michigan Forest Hills, Michigan Marshall, Michigan Pinconning, Michigan Traverse City, Michigan Fridley, Minnesota Hopkins, Minnesota Minneapolis, Minnesota Brunswick, Missouri Missoula, Montana Omaha, Nebraska Organ, New Mexico Big Flats, New York Canandaigua, New York Honeoye Falls, New York Lake Luzerne-hadley, New York Southold, New York Greensboro, North Carolina Holly Ridge, North Carolina Marion, North Carolina Grand Forks, North Dakota Pekin, North Dakota Cincinnati, Ohio Haviland, Ohio Tulsa, Oklahoma Portland, Oregon Salem, Oregon Malvern, Pennsylvania Murrells Inlet, South Carolina North Augusta, South Carolina Algood, Tennessee Eagleton Village, Tennessee Knoxville, Tennessee Lafayette, Tennessee Dickinson, Texas Fate, Texas Hereford, Texas Houston, Texas Paris, Texas Pecan Grove, Texas Rowlett, Texas Wichita Falls, Texas West Valley City, Utah Chantilly, Virginia (2 reports) Gretna, Virginia Cascade-fairwood, Washington La Conner, Washington Seattle, Washington (2 reports) Milwaukee, Wisconsin Ripon, Wisconsin Schofield, Wisconsin