Clematis, Early Large-flowered, Double Clematis 'Duchess of Edinburgh'


Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Cultivar: Duchess of Edinburgh
Hybridized by Jackman
Registered or introduced: 1874
» View all varieties of Clematis


Early Large-flowered


6-8 ft. (1.8-2.4 m)

8-10 ft. (2.4-3 m)


36-48 in. (90-120 cm)

4-6 ft. (1.2-1.8 m)


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)

Bloom Color:

White/Near White

Flower Fragrance:

No fragrance

Bloom Shape:


Bloom Diameter:

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

Bloom Time:

Mid Spring

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 2 - Repeat bloomers; prune immediately after flowering

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:

Sherwood, Arkansas

Anderson, California

Capistrano Beach, California

Santa Clara, California

Sebastopol, California

Tracy, California

Milford, Connecticut

Torrington, Connecticut

Barnesville, Georgia

Camilla, Georgia

Thompsonville, Illinois

Washington, Illinois

Logansport, Indiana

Salvisa, Kentucky

Ellicott City, Maryland(2 reports)

Halifax, Massachusetts

Caledonia, Michigan

Saint Charles, Michigan

Kansas City, Missouri

Rome, New York

Southold, New York

Cleveland, Ohio


Portland, Oregon

Wilkes Barre, Pennsylvania

Charleston, South Carolina

Clarksville, Tennessee

Crossville, Tennessee

Hixson, Tennessee

Sweetwater, Tennessee

South Prairie, Washington

Ripley, West Virginia

show all

Gardeners' Notes:


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

Flowers are 5" across. Hardy to Z4. Can reach 8-11' high. Can rebloom in late summer. This cultivar has a reputation for being a fussy plant.

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 hel... read more


On May 17, 2012, maccionoadha from Halifax, MA (Zone 6a) wrote:

I do so love this plant. I was quite surprised to find that it would sometimes produce seeds. I would only get ten seeds at most from the entire plant and it is the only Clematis I own that produces blossoms. I have had no luck with any other. A+


On Jun 11, 2010, PNWMountainGirl from (Sharon)SouthPrairie, WA (Zone 7a) wrote:

I was not happy with this plant for the first few years of its life. I thought the flowers were less than attractive. Now that it is mature, the flower buds and flowers are both lovely. It is also very vigorous.


On Sep 27, 2009, petonegirl from Wellington,
New Zealand wrote:

I am from New Zealand in my area zone 9, I have over 20 Clematis & this double has to be the toughest & most prolific double I have, I prune it hard in early spring & is the second to flower, improves each year & amazes me with the huge blooms

Have found with most double clematis's be ruthless & prune hard & they will reward you.


On Feb 13, 2006, DreamOfSpring from Charleston, SC (Zone 9a) wrote:

I have quite a few clematis plants. This is by far my most prolific bloomer. In 2005, it started blooming on Mar 29, bloomed heavily in April and May and continued to sport a handful of blooms most of the summer. Throughout Fall 05 it kept a bloom or two at all times. I recorded the last bloom on Dec 16, 2005! By that time all of my other clematis had long since gone dormant. BTW, this plant is located on a fence behind a group of roses. I can't get to it without wrestling with rose thorns, so it gets no help from the gardener, but still manages to bloom almost non-stop for 3/4 of the year.

The pure white, double blooms are quite striking. My blooms have considerable green on them when partially open but are pure white when fully open. I find the green adds to the performa... read more


On Apr 13, 2005, RDT from Crossville, TN (Zone 6b) wrote:

I have this weaving in my dwarf lilac. Both the Josee Lilac and Clematis are rebloomers. I had blooms from both in October.


On Jun 9, 2003, mikamouse from Warren, MI wrote:

It looks like a gardenia flower without the fragrance.
Blooms around the 2nd week of June in the midwest.


On Jun 8, 2003, Larkie from Camilla, GA (Zone 8a) wrote:

Blooms very early here in zone 8 also..1st double blooms on April 1st.. Flowers are very long lasting..


On Apr 15, 2003, violabird from Barnesville, GA (Zone 8a) wrote:

Worth it for the pure white, very double early blooms. In Georgia, 1st bloom April 11, although most literature says bloom time of May-June.