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PlantFiles: Clematis
Clematis 'Lasurstern'

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Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Cultivar: Lasurstern
Hybridized by Goos-Koenemann; Year of Registration or Introduction: 1905

» View all varieties of Clematis

2 vendors have this plant for sale.

Group:
Early Large-flowered

Height:
6-8 ft. (1.8-2.4 m)

Spacing:
36-48 in. (90-120 cm)

Hardiness:
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)

Bloom Color:
Medium Blue
Blue-Violet

Flower Fragrance:
No fragrance

Bloom Shape:
Semi-Double
Flat

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

Bloom Time:
Mid Summer

Sun Exposure:
Full Sun
Sun to Partial Shade

Other details:
Average Water Needs; Water regularly; do not overwater
Suitable for growing in containers

Danger:
Unknown - Tell us

Pruning Groups:
Group 2 - Repeat bloomers; prune immediately after flowering
Group 3 - Summer/Fall bloomers; prune hard in early spring

Patent Information:
Unknown - Tell us

Propagation Methods:
From semi-hardwood cuttings

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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By kniphofia
Thumbnail #1 of Clematis  by kniphofia

By kniphofia
Thumbnail #2 of Clematis  by kniphofia

By kniphofia
Thumbnail #3 of Clematis  by kniphofia

Profile:

No positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral mystic On Jan 3, 2005, mystic from Ewing, KY (Zone 6a) wrote:

Awarded RHS Award of Garden Merit in 1993.



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