Data specific to Clematis (Edit)
Raised by: Robert Brydon
Country of Origin: USA
Growing Zones: USDA Zone 4
USDA Zone 5
USDA Zone 6
USDA Zone 7
USDA Zone 8
USDA Zone 9
Typical Plant Size: Typically 6 to 8 feet
Pruning Group: Group 3 - Hard pruning recommended in early spring
Bloom Diameter: Very Small - 2 inches or smaller (<5 cm)
Bloom Color (Tepals): Light to Lavender Blue hue
Bloom Shape: Single
Preferred Light: Tolerates partial shade
Prefers full sun

General Plant Information (Edit)
Plant Habit: Herb/Forb
Vine
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Plant Height: 6-8 ft.
Leaves: Deciduous
Flowers: Showy
Flower Color: Lavender
Flower Time: Summer
Late summer or early fall

Image
Common names
  • Clematis

Photo Gallery
Location: East border
Date: August
Location: home garden VA
Date: 2023-08-06
Clematis Mrs. Robert Bryson new plant initial bloom
Location: My Northeastern Indiana Gardens - Zone 5b
Date: 2012-08-09
Location: East border
Date: 2013-08-26
Very unusual
Location: Powell Gardens, Kingsville, MO
Date: 2016-06-11
Location: East border
Date: August 2015
Location: East border
Date: August

Photo courtesy of Nate Bremer of Solaris Farms
  • Uploaded by Joy
Location: My Northeastern Indiana Gardens - Zone 5b
Date: 2012-08-09
Location: East border
Date: August 2015
Location: Newby Hall, Yorkshire UK
Date: 2016-08-21
Location: Newby Hall, Yorkshire UK
Date: 2017-08-20

Date: c. 1954
photo from the 1954 catalog, Wayside Gardens, Mentor, Ohio
Photo by Cees
Location: In my Northern California garden
Date: 2013-06-16

Photo courtesy of Brushwood Nursery

Photo courtesy of Brushwood Nursery

Credit florum
Location: Clinton, Michigan 49236
Date: 2017-05-19
"Clematis heracleifolia 'Mrs. Robert Brydon', 2017, Bush or Pilla

Date: 2010-09-09
Photo courtesy Joy Creek Nursery.  Used with permission.
Location: My Northeastern Indiana Gardens - Zone 5b
Date: 2012-08-18
Location: East garden
Date: 2015-10-04

Photo courtesy of Joy Creek Nursery
  • Uploaded by Joy
Location: Pittsburgh, Pennsylvania
Date: summer 2015
Location: Brown City, Michigan
Date: 2009-07-02
Needs strong support to grow vertically.
Location: Brown City, Michigan
Date: 2009-08-13
Blooms late in my zone 5 garden.
Location: Pittsburgh, Pennsylvania
Date: 08/2015
Location: My Northeastern Indiana Gardens - Zone 5b
Date: 2012-08-09
Reverse.
This plant is tagged in:
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Comments:
  • Posted by goldfinch4 (Ripon, Wisconsin) on Dec 29, 2011 2:38 PM concerning plant:
    Flowers are an unusual pale lavender blue with almost a grey tint. The group is heracleifolia, and it's a semi-herbaceous cultivar.

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