Clematis, Late Large-flowered Clematis 'Comtesse de Bouchaud'


Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Cultivar: Comtesse de Bouchaud
Hybridized by Morel
Registered or introduced: circa 1900
» View all varieties of Clematis


Late Large-flowered


10-12 ft. (3-3.6 m)

12-15 ft. (3.6-4.7 m)


4-6 ft. (1.2-1.8 m)

6-8 ft. (1.8-2.4 m)


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)

Bloom Color:


Flower Fragrance:

No fragrance

Bloom Shape:


Bloom Diameter:

Medium - 2 to 5 inches (5 to 12 cm)

Bloom Time:

Late Summer/Early Fall

Sun Exposure:

Sun to Partial 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 3 - Summer/Fall bloomers; prune hard in early spring

Patent Information:


Propagation Methods:

Unknown - Tell us

Seed Collecting:

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:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Grow outdoors year-round in hardiness zone


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

Foley, Alabama

Elk Grove, California

Long Beach, California

San Leandro, California

Sonora, California

Colorado Springs, Colorado

Marietta, Georgia

Chicago, Illinois

Mt Zion, Illinois

Spring Grove, Illinois

Logansport, Indiana

Shawnee Mission, Kansas

Sadieville, Kentucky

Salvisa, Kentucky

Baton Rouge, Louisiana

Amherst, Massachusetts

Reading, Massachusetts

Constantine, Michigan

Macomb, Michigan

Mason, Michigan

Minneapolis, Minnesota

Jackson, Missouri

Saint Louis, Missouri

Central City, Nebraska

Lincoln, Nebraska

Omaha, Nebraska

Elmira, New York

Rome, New York

Hulbert, Oklahoma

Chiloquin, Oregon

Portland, Oregon

Mountain Top, Pennsylvania

Clarks Hill, South Carolina

Orangeburg, South Carolina

Simpsonville, South Carolina

Lafayette, Tennessee

San Antonio, Texas

Willis, Texas

Centerville, Utah

Pearisburg, Virginia

Radford, Virginia

Enumclaw, Washington

Port Orchard, Washington

show all

Gardeners' Notes:


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

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. It also helps keep the roots cool.

Many small-flowered hybrids are spectacular in flower, and long-blooming. I consider them indispensable, especially th... read more


On Jun 21, 2010, Mom22Zone5 from Omaha, NE wrote:

I have this growing on the South side of the house. It's a heavy-duty bloomer - see pic June 2010. It starts in May and blooms almost to the end of July. It tends to have most of it's blooms at the very top of the plant. I have daylilies and white daisies at the foot which works well to shade the roots.


On Jun 1, 2009, WUVIE from Hulbert, OK (Zone 7a) wrote:

For several years, this bountiful bloomer has been
performing exceptionally well on the south side of our
home in Northeastern Oklahoma.

Only today were we able to positively identify it as
Comtesse De Bouchaud with the help of another DG'er;
DawnLL. Thanks!

I can't even count how many blooms this thing has put out.
Bloom after bloom after bud after bud. Amazing, and it is
still going!

Lovely, lovely, lovely!


On Jul 6, 2007, art_n_garden from Colorado Springs, CO (Zone 6a) wrote:

Very hardy plant- I inherited three of these beautiful plants with the house we just purchased. They trained themselves on our lattice and are doing fantastic. I can't believe how many blooms it has and is showing no signs of stopping! Only negative I've seen is that the blooms droop a little during our hot afternoon sun, but perk up as it cools off.


On May 11, 2007, Rain1950 from (Zone 8a) wrote:

A very vigorous grower. I have it in a 2' pot at the time, but will move to the garden soon. Last year it went thru two bloom periods; was still in full bloom when frosts hit. Pruned back in March and it's already well over 6'. Had a few late frosts will no damage


On Sep 21, 2006, mystic from Ewing, KY (Zone 6a) wrote:

Received The Royal Horticultural Society, Award of Garden Merit (AGM) in 1993.


On Jul 30, 2005, Marlina from Blaine, MN (Zone 4b) wrote:

Have had great luck with Comtesse De Bouchaud Clematis. Abundant blooms starting in late June lasting until the end of July .


On Dec 11, 2004, sadie_mae from Central, KY (Zone 6b) wrote:

Beautiful mauve blooms, regardless of how I prune it, it always blooms mostly at the top. Does rebloom a little but not as much as some that I have.


On Dec 6, 2004, ceedub from Whitby, ON (Zone 5b) wrote:

I have this clematis growing with a dark purple variety, and the contrast in colours is very pretty. I've had great success with my clematis, this is their second summer, and have been more lush each year. Can't wait for spring!!