Photo by Melody

PlantFiles: Late, Large Flowered Clematis
Clematis 'Ramona'

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Cultivar: Ramona
Additional cultivar information: (aka Hybrida Sieboldii Ramona)

» View all varieties of Clematis

3 vendors have this plant for sale.

4 members have or want this plant for trade.

Late Large-flowered

8-10 ft. (2.4-3 m)
10-12 ft. (3-3.6 m)

18-24 in. (45-60 cm)

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)
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:
Medium Blue

Flower Fragrance:
No fragrance

Bloom Shape:

Bloom Diameter:
Large - 5 to 8 inches (12 to 20 cm)

Bloom Time:
Late Summer/Early Fall

Sun Exposure:
Sun to Partial Shade

Other details:
Average Water Needs; Water regularly; do not overwater
Provides winter interest

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:
Unknown - Tell us

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By victorgardener
Thumbnail #1 of Clematis  by victorgardener

By sadie_mae
Thumbnail #2 of Clematis  by sadie_mae

By swinnes
Thumbnail #3 of Clematis  by swinnes

By Charlotteda
Thumbnail #4 of Clematis  by Charlotteda

By victorgardener
Thumbnail #5 of Clematis  by victorgardener

By victorgardener
Thumbnail #6 of Clematis  by victorgardener

By 33libra
Thumbnail #7 of Clematis  by 33libra

There are a total of 30 photos.
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7 positives
No neutrals
No negatives

Gardeners' Notes:

Positive nwh On Jun 8, 2014, nwh from Chicago, IL wrote:

Huge lavender/blue flowers, blooms in late May/early June and then reblooms. Mine is growing on a chain link fence, in a strip of dirt between two sidewalks, where I haven't had much luck growing anything but weeds. I covered the roots with a rock. It is thriving.

Positive dicentra63 On Jun 25, 2010, dicentra63 from West Valley City, UT (Zone 6b) wrote:

My best Clematis (of six that I have), Ramona is the most consistent performer with the biggest blooms and the most otherworldly shade of lavender-blue.

Definitely recommend. My soil is poor, and she's in part-shade, and she's happy as a clam at high tide.

Positive topofmurrayhill On Jun 4, 2009, topofmurrayhill from Flushing, NY (Zone 6b) wrote:

I planted small specimens last year. This year they are quite vigorous and carefree growers, topping their trellises now in early June. Also very floriferous, with a terrific May spectacle of large flowers in striking blue/lavender shades covering the plants. I expect additional blooms later in the season. Very pleased with 'Ramona.'

Positive birder17 On Feb 9, 2007, birder17 from Jackson, MO (Zone 6b) wrote:

I have seen this plant blooming prolifically. My son used the tiller on mine. I liked it so well, I bought another one.

Positive pkock On Feb 15, 2006, pkock from Springboro, OH (Zone 5b) wrote:

This clematis gives an outstanding display each May. It blooms sporadically thereafter all the way till winter. The seedheads are attractive year-round.

Positive Munkee1hk On Jul 17, 2005, Munkee1hk from Shirley, NY wrote:

I planted this type of Clematis earlier this spring, and it's doing so well. It has climbed up my trellis aon on to my fence. It's blooming profusly now. Definately a good vine for zone 7.

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

I love the color of this clematis the most during it's first few days, then it tends to fade; still pretty, I just prefer the new blooms. Has grown very well. It is in full sun, maybe the blooms wouldn't fade as much in partial shade.


This plant has been said to grow in the following regions:

Long Beach, California
Buford, Georgia
Chicago, Illinois
Rockford, Illinois
Davenport, Iowa
Shawnee Mission, Kansas
Salvisa, Kentucky
Ellicott City, Maryland
Dracut, Massachusetts
Caledonia, Michigan
Saint Charles, Michigan
Wyoming, Minnesota
Brunswick, Missouri
Jackson, Missouri
Averill Park, New York
Flushing, New York
Hilton, New York
Southold, New York
Syracuse, New York
Brevard, North Carolina
Hamilton, Ohio
Richmond, Ohio
Dallas, Oregon
Grants Pass, Oregon
Portland, Oregon
Albion, Pennsylvania
Pickens, South Carolina
Christiana, Tennessee
Copperas Cove, Texas
Manchaca, Texas
Willis, Texas
Salt Lake City, Utah
South Hero, Vermont
Leesburg, Virginia
Kalama, Washington
Ridgefield, Washington
Seattle, Washington

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