Early, Large-flowered Clematis
Clematis 'Lasurstern'

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Cultivar: Lasurstern
Hybridized by Goos-Koenemann
Registered or introduced: 1905
» View all varieties of Clematis

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:

Unknown - Tell us

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

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Suitable for growing in containers

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

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

Awarded RHS Award of Garden Merit in 1993.