Clematis, Early Large-flowered Clematis 'Niobe'


Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Cultivar: Niobe
Hybridized by Noll
Registered or introduced: 1975
» View all varieties of Clematis
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Early Large-flowered


8-10 ft. (2.4-3 m)


24-36 in. (60-90 cm)

36-48 in. (90-120 cm)


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)

Bloom Color:

Scarlet (dark red)

Flower Fragrance:

Slightly Fragrant

Bloom Shape:


Bloom Diameter:

Large - 5 to 8 inches (12 to 20 cm)

Bloom Time:

Mid Spring

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade

Other details:

Unknown - Tell us


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:


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

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Flowers are good for cutting

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Can be grown as an annual


This plant is said to grow outdoors in the following regions:

Vincent, Alabama

Little Rock, Arkansas

Capistrano Beach, California

Elk Grove, California

Laguna Beach, California

San Clemente, California

San Francisco, California

San Jose, California

San Leandro, California

Van Nuys, California

Northford, Connecticut

Newark, Delaware

Wilmington, Delaware

Jacksonville, Florida

Clarkston, Georgia

Stone Mountain, Georgia

Boise, Idaho

Meridian, Idaho

Twin Falls, 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

Ada, Michigan

Dearborn Heights, Michigan

Jackson, Michigan

Marshall, Michigan

Pinconning, Michigan

Traverse City, Michigan

Hopkins, Minnesota

Minneapolis, Minnesota(2 reports)

Brunswick, Missouri

Missoula, Montana

Omaha, Nebraska

Albuquerque, New Mexico

Organ, New Mexico

Big Flats, New York

Canandaigua, New York

Honeoye Falls, New York

Lake Luzerne, New York

Southold, New York

Clemmons, North Carolina

Greensboro, North Carolina

Holly Ridge, North Carolina

Marion, North Carolina

Grand Forks, North Dakota

Pekin, North Dakota

Canton, Ohio

Cincinnati, Ohio

Haviland, Ohio

Tulsa, Oklahoma

Portland, Oregon

Salem, Oregon

Lansdowne, Pennsylvania

Malvern, Pennsylvania

Verona, Pennsylvania

Murrells Inlet, South Carolina

North Augusta, South Carolina

Cookeville, Tennessee

Knoxville, Tennessee

Lafayette, Tennessee

Maryville, Tennessee

Dickinson, Texas

Fate, Texas

Hereford, Texas

Houston, Texas

Paris, Texas

Richmond, Texas

Rowlett, Texas

Wichita Falls, Texas

Salt Lake City, Utah

Chantilly, Virginia(2 reports)

Gretna, Virginia

Cascade-Fairwood, Washington

La Conner, Washington

Renton, Washington

Seattle, Washington(2 reports)

Milwaukee, Wisconsin

Ripon, Wisconsin

Schofield, Wisconsin

show all

Gardeners' Notes:


On Mar 7, 2016, coriaceous from ROSLINDALE, MA wrote:

'Niobe' is hardy to Z4. The color is a deep garnet/crimson red, not scarlet.

Blackened crispy leaves are often due to a common fungal disease called clematis wilt. Large-flowered clematis are more prone to clematis wilt than the species and small-flowered hybrids.

Clematis and tomatoes are two exceptions to the usual rule, and are best planted 6 inches deeper than the soil level in the pot. This protects the stem bases from mechanical damage, and helps prevent clematis wilt, whose fungus enters where there's damage.

Many small-flowered hybrids are spectacular in flower, and lo... read more


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 East Texas,
United States (Zone 8a) 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)


On Aug 22, 2008, Gabrielle from (Zone 5a) wrote:

Blooms May-July in my garden.


On Jun 6, 2008, sherpo1 from Maryville, TN wrote:

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.


On Feb 16, 2008, QCHammy from San Tan Valley, AZ (Zone 9a) wrote:

I grew this plant in Grand Forks, ND with no special protection or care. It's rated at zone 5 for hardiness but let me tell you it did fine in my zone 3b garden, in fact you might say it was thriving.


On Sep 2, 2006, Raper from Seattle, WA wrote:

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 Jun 29, 2006, rsquared from Finger Lakes, NY (Zone 6a) wrote:

This is one of my strongest and longest bloomers. I love the color and size. It is usually covered with flowers!


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.


On Feb 17, 2006, RDT from Crossville, TN (Zone 6b) wrote:

Large red flowers in abundance. Blooms through Fall.


On Feb 12, 2006, TBGDN from (Zone 5a) wrote:

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 Mar 3, 2005, northgrass from West Chazy, NY (Zone 4b) wrote:

A very reliable bloomer for a month or more. The flowers look like they are made of burgundy velvet. I only wish the vine grew larger.


On Nov 9, 2004, smiln32 from Oklahoma City, OK (Zone 7a) wrote:

This clematis flowers from June to July and can grow to a width of 3'. It received the Award of Garden Merit from the Royal Horticultural Society.

The tops of Clematis prefer full sun while their roots prefer a cool, shady area. It is best to heavily mulch the base of the plant, or as other gardeners have done, plant groundcovers nearby.


On Jul 15, 2004, shortcm from Wilmington, DE (Zone 7b) wrote:

I've had this for four years; like my other clematis, it was weak the first two years, better each year since.

Interesting to see this one is rated part shade. I hear they do not like to be moved, but since mine in full sun looks burnt out by early summer, I'll try planting it's seeds in some shade.

Niobe was sold in catalogs as "Red", but mine is burgundy like the pictures here.


On May 24, 2003, Greenknee from Chantilly, VA (Zone 6b) wrote:

This is my strongest, longest blooming clematis - now that it is well established. Doesn't get too big, either.


On May 23, 2003, DeeSteveH from Gretna, VA (Zone 7a) wrote:

Again, like the jackmani, this plant has thrived since I added ground cover (sedum and forget-me-nots) to keep the roots cool.


On Jan 25, 2003, Shirley1md from Ellicott City, MD (Zone 7a) wrote:

An excellent and very hardy Clematis!

I love the melding of Clematis, Ferns, and chartruse foliage. It's a lovely combo.


On Nov 23, 2002, yvana from Stone Mountain, GA (Zone 7b) wrote:

This is a Jackmanii-type Clematis.