Photo by Melody

PlantFiles: Clematis
Clematis 'Vyvyan Pennell'

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Cultivar: Vyvyan Pennell
Hybridized by Pennell; Year of Registration or Introduction: 1954

» View all varieties of Clematis

6 vendors have this plant for sale.

2 members have or want this plant for trade.

Early Large-flowered

6-8 ft. (1.8-2.4 m)
8-10 ft. (2.4-3 m)

Unknown - Tell us

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)

Bloom Color:

Flower Fragrance:
No fragrance

Bloom Shape:

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

Bloom Time:
Late Spring/Early Summer

Sun Exposure:
Sun to Partial Shade

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

Unknown - Tell us

Pruning Groups:
Group 2 - Repeat bloomers; prune immediately after flowering

Patent Information:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By scoutsadie
Thumbnail #1 of Clematis  by scoutsadie

By Calif_Sue
Thumbnail #2 of Clematis  by Calif_Sue

By Sneirish
Thumbnail #3 of Clematis  by Sneirish

By kniphofia
Thumbnail #4 of Clematis  by kniphofia

By Samtpfote
Thumbnail #5 of Clematis  by Samtpfote

By Sneirish
Thumbnail #6 of Clematis  by Sneirish

By Calif_Sue
Thumbnail #7 of Clematis  by Calif_Sue

There are a total of 10 photos.
Click here to view them all!


2 positives
1 neutral
No negatives

Gardeners' Notes:

Positive Samtpfote On Jun 8, 2011, Samtpfote from Gresham, OR (Zone 8a) wrote:

I as well ordered this clematis from Michigan Bulb under the name Celtic Sky. I stumbled across the previous post and found out the real name. This clematis is going to be one of my favorite plants in my yard. I got it as a tiny little thing in spring 2010. It did not bloom that year. This year it has 4 flowers and they are just stunning. Almost the size of my hand. It started as completely light lavender and now the outer petals are turning magenta. I am sooo happy that I got this one.

Positive Sneirish On Jun 13, 2009, Sneirish from Swansea, MA (Zone 6b) wrote:

Michigan Bulb was selling this Clematis as 'Celtic Skies' and I ordered one but was unable to find this as a registered cultivar. When I received the plant it was tagged as 'Vyvyan Pennell' also. I planted it last October, and it has done quite well, with two large flowers this spring.

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

Grown by Walter Pennell from Pennell and Sons Nursery and named after his wife. Awarded RHS Award of Garden Merit.


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

Washington, District Of Columbia
Shawnee Mission, Kansas
Swansea, Massachusetts
Big Flats, New York
Enid, Oklahoma
Gresham, Oregon
Springfield, Virginia

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