Data specific to Clematis (Edit)
Raised by: Stephen Denny
Country of Origin: United Kingdom
Growing Zones: USDA Zone 4
USDA Zone 5
USDA Zone 6
USDA Zone 7
USDA Zone 8
USDA Zone 9
USDA Zone 10
USDA Zone 11
Typical Plant Size: Typically 4 to 6 feet
Pruning Group: Group 2 - Optional, light pruning after flowering
Bloom Diameter: Medium - between 4 to 6 inches
Bloom Color (Tepals): White/Cream/Silver hue
Center Color (Anthers): Yellow anthers
Bloom Shape: Single
Semi-Double
Preferred Light: Tolerates partial shade
Prefers full sun
Moisture Requirements: Average moisture requirements

General Plant Information (Edit)
Plant Habit: Vine
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Plant Height: 4-6 ft.
Leaves: Deciduous
Flowers: Showy
Flower Color: White
Flower Time: Late spring or early summer
Late summer or early fall

Image
Common names
  • Clematis

Photo Gallery

Date: 2008-08-24
Photo courtesy Joy Creek Nursery.  Used with permission.

Photo courtesy of Brushwood Nursery

Photo courtesy of Brushwood Nursery
Comments:
  • Posted by pepper23 ( KC metro area, Missouri - Zone 6a) on Feb 17, 2018 10:55 AM concerning plant:
    Sylvia Denny is a white semi double to double flowered vine. Extremely hardy in zone 5 and tolerates moving like it's nothing. Tolerates full shade to almost full sun.
  • Posted by goldfinch4 (Ripon, Wisconsin) on Feb 13, 2012 3:20 AM concerning plant:
    Parentage: 'Duchess of Edinburgh' x 'Marie Boisselot'

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