Clematis, Herbaceous Clematis, Late, Small Flowered Clematis 'Rooguchi'

Clematis

Family
Ranunculaceae (ra-nun-kew-LAY-see-ee)
Genus
Clematis (KLEM-uh-tiss)
Synonym
Clematis integrifolia
Spacing
6-8 ft. (1.8-2.4 m)
Hardiness
36-48 in. (90-120 cm)
Sun Exposure
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)
Danger
Sun to Partial Shade
Bloom Color
All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Bloom Time
Blue-Violet
Dark Purple/Black
Other Details
Other details
Mid Spring
Late Spring/Early Summer
Mid Summer
Propagation Methods
Seed Collecting
Flower Fragrance
From softwood cuttings
From semi-hardwood cuttings
From seed; direct sow outdoors in fall
From seed; stratify if sowing indoors
From seed; sow indoors before last frost
By grafting
By serpentine layering
Patent Information
Group
Allow seedheads to dry on plants; remove and collect seeds
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Bloom Shape
Pruning Groups
Bloom Diameter
Foliage Color
Bloom Characteristics
Water Requirements
Where to Grow
Regional

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

Pelham, Alabama

Anchorage, Alaska

Sherwood, Arkansas

San Leandro, California

Sebastopol, California

Alachua, Florida

Chiefland, Florida

Cochran, Georgia

Lawrenceville, Georgia

Marietta, Georgia

Cherry Valley, Illinois

Hanna City, Illinois

Mattoon, Illinois

Milan, Illinois

Michigan City, Indiana

Atalissa, Iowa

Louisville, Kentucky(2 reports)

Taylorsville, Kentucky

Covington, Louisiana

Gardiner, Maine

Swampscott, Massachusetts

Townsend, Massachusetts

Wayzata, Minnesota

Missoula, Montana

Polson, Montana

Salem, New Hampshire

Freehold, New Jersey

Bosque, New Mexico

Mesilla Park, New Mexico

Santa Fe, New Mexico

Southold, New York

Apex, North Carolina

Greensboro, North Carolina

Eugene, Oregon

Sherwood, Oregon

Allentown, Pennsylvania

Lansdowne, Pennsylvania

Philadelphia, Pennsylvania

Pittsburgh, Pennsylvania

Wilkes Barre, Pennsylvania

Clarksville, Tennessee

Hixson, Tennessee

Houston, Texas

Irving, Texas

Lewisville, Texas

Orange, Texas

Round Rock, Texas

South Burlington, Vermont

South Woodstock, Vermont

Fircrest, Washington

South Hill, Washington

Tacoma, Washington

Cedarburg, Wisconsin

Cheyenne, Wyoming

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Featured Videos

Gardener's Notes:

12
positives
0
neutral
0
negative
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B
Boston, MA (Zone 5b) | May 2020 | positive

I had planted Rooguchi clematis as a kid at my parents house. It was planted in an ill-fated rose garden in a hot dry completely exposed ...Read More

J
South Woodstock, VT | July 2016 | positive

This vine is thriving on a stone wall in the rose garden at The Fells, the historic Newbury, NH home of John Hay, secretary to President ...Read More

J
Cheyenne, WY | June 2016 | positive

I have 2 of these vines in Cheyenne Wy. I prune them to the ground in late fall. One is 5 yrs old; the other 4. They are huge and alre...Read More

C
ROSLINDALE, MA | March 2016 | positive

This is the most continuously blooming clematis I know, blooming nonstop from early summer till frost.

It gets long and sp...Read More

S
Louisville, KY (Zone 6b) | May 2013 | positive

I absolutely adore this Clematis. It is a deep purple that looks best with a brighter companion, especially roses. It doesn't climb by te...Read More

L
L
Michigan City, IN (Zone 6a) | September 2012 | positive

I've been growing this clematis since spring 2007 and I simply love it. It starts to bloom in the spring and continues right through to ...Read More

J
J
JCG
Anchorage, AK | August 2012 | positive

Here in Anchorage Alaska my ROOGUCHI is 12 foot tall and is literally covered with blossoms and buds..It overwintered with no problems.....Read More

B
Buffalo, NY | February 2010 | positive

Our Rooguchi plants thrive in Buffalo, New York, with very little care. Their blossoms are unique, and very colorful, and produce very pr...Read More

M
Philadelphia, PA (Zone 7a) | November 2009 | positive

Have planted this on an 8 ft arbor covered with wisteria. The rooguchi intertwines with the wisteria and blooms all summer. Doesn't cro...Read More

T
Milan, IL | April 2008 | positive

I have 3 of these and maybe it depends on where you live, but I prune it back every year. I did not do that the first year and it barely...Read More

D
D
Stanford, CA (Zone 9b) | June 2006 | positive

Clematis Rooguchi is herbacious meaning that it doesn't climb by tendrils. This makes it a great flower for scrambling through perennial...Read More

C
Hixson, TN (Zone 7a) | September 2004 | positive

I love this clematis because it has the longest bloom period I have ever seen for a clematis.It is a beautiful bell shaped dark purple fl...Read More

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