Clematis, Early Large-flowered Clematis 'Ken Donson'

Clematis

Family
Ranunculaceae (ra-nun-kew-LAY-see-ee)
Genus
Clematis (KLEM-uh-tiss)
Synonym
Spacing
8-10 ft. (2.4-3 m)
Hardiness
36-48 in. (90-120 cm)
Sun Exposure
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)
Danger
Full Sun
Bloom Color
Bloom Time
Blue-Violet
Other Details
Other details
Mid Summer
Late Summer/Early Fall
Propagation Methods
Seed Collecting
Flower Fragrance
Patent Information
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:

Menlo Park, California

South China, Maine

Belgium, Wisconsin

Featured Videos

Gardener's Notes:

2
positives
1
neutral
0
negative
Sort By:
Sort By:
T
Belgium, WI (Zone 5a) | April 2007 | positive

This clematis is a stunner. The deep blue blooms are about 7 inches across and it bloomed prolifically in my garden last year (it's 3rd y...Read More

M
M
Ewing, KY (Zone 6a) | September 2006 | neutral

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

E
E
| October 2004 | positive

This plant was blooming when I received it and I don't have any first hand knowledge of it.

The plant tag says to trim b...Read More

Featured
Green Lynx Spider
(Peucetia viridans)
Common Gallinule
(Gallinula galeata)
Featured
Green Lynx Spider
(Peucetia viridans)
Common Gallinule
(Gallinula galeata)