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PlantFiles: Clematis, Alpine Clematis
Clematis alpina 'Pamela Jackman'

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Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Species: alpina (AL-pin-a) (Info)
Cultivar: Pamela Jackman
Hybridized by Jackman; Year of Registration or Introduction: 1960

» View all varieties of Clematis

One member has or wants this plant for trade.

Group:
Atragene

Height:
10-12 ft. (3-3.6 m)
12-15 ft. (3.6-4.7 m)

Spacing:
4-6 ft. (1.2-1.8 m)

Hardiness:
USDA Zone 2a: to -45.5 C (-50 F)
USDA Zone 2b: to -42.7 C (-45 F)
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)

Bloom Color:
Blue-Violet

Flower Fragrance:
No fragrance

Bloom Shape:
Bell

Bloom Diameter:
Small - less than 2 inches (5 cm)

Bloom Time:
Late Spring/Early Summer

Sun Exposure:
Sun to Partial Shade

Other details:
Average Water Needs; Water regularly; do not overwater

Danger:
Unknown - Tell us

Pruning Groups:
Group 1 - Spring bloomers; no pruning

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

Click thumbnail
to view:

By Todd_Boland
Thumbnail #1 of Clematis alpina by Todd_Boland

By Evert
Thumbnail #2 of Clematis alpina by Evert

By Evert
Thumbnail #3 of Clematis alpina by Evert

By kizilod
Thumbnail #4 of Clematis alpina by kizilod

Profile:

1 positive
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral mystic On Sep 10, 2006, mystic from Ewing, KY (Zone 6a) wrote:

Received The Royal Horticultural Society, Award of Garden Merit (AGM) in 2005.

Positive Todd_Boland On Nov 8, 2004, Todd_Boland from St. John's, NL (Zone 5b) wrote:

I've had this one for over 10 years. The plant is growing on a fence and now stretches for 15 feet! Produces a wall of blue each June, plus attractive fluffy seedheads later in the summer.

Regional...

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

Uxbridge, Massachusetts



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