Data specific to Clematis (Edit)
Raised by: Frans van Haasterd
Country of Origin: Holland
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
Plant Group: Patens
Typical Plant Size: Typically 6 to 8 feet
Pruning Group: Group 2 - Optional, light pruning after flowering
Bloom Diameter: Medium - between 4 to 6 inches
Bloom Color (Tepals): Light to Lavender Blue hue
Bloom Shape: Double blooms in all climates
Preferred Light: Requires partial shade
Suitability as Cut Flower: Good cut flower (strong stem, average vase life)
Moisture Requirements: Average moisture requirements
Disease Resistance: Very disease resistant
Additional Information: Free-flowering (very floriferous)
Recommendations: Good choice for a container

General Plant Information (Edit)
Plant Habit: Vine
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Plant Height: 6-8 feet
Plant Spread: 3-4 feet
Leaves: Deciduous
Flowers: Showy
Flower Color: Blue
Flower Time: Spring
Summer
Uses: Cut Flower
Propagation: Other methods: Cuttings: Stem
Division
Miscellaneous: Patent/Plant Breeders' Rights: PP15953
Parentage: Sport of: Mrs. Cholmondeley

Image
Trade name information:
Trade Name: Blue Light™
Cultivar name: 'Vanso'
Common names
  • Clematis
Also sold as:
  • Vanso Blue Light

Photo Gallery
Location: My garden, zone 4 Wisconsin
Date: 2012-06-10
zone 4 Wisconsin
Location: Zone 4 Wisconsin
Date: 7-2-11
7-2-11 Zone 4 Wisconsin
Location: Canton, OH
Date: 2023-05-14
Location: My garden, central NJ, Zone 7A
Date: 2019-05-16
Each year it manages to surpass the previous year display.
Location: Canton, OH
Location: Granite Falls, WA
Date: 2023-05-29
Cascading From My Trellis
Location: My garden, Cottage-in-the-Meadow Gardens in South Amana, IA
Date: 2011-09-23
Location: My garden, central NJ, Zone 7A
Date: 5/19/15
Clematis Blue Light ... Dimension of Flower Depth
Location: Belmont garden
Date: 2012-0527
This is all that remains after the tepals are gone.
Location: My garden, central NJ, Zone 7A
Date: 2016-06-04
Location: My garden, central NJ, Zone 7A
Date: 2018-05-11
This Blue Light always makes my day so much brighter.
Location: Canton, OH
Date: 2023-05-19
Location: Canton, OH
Date: 2023-05-19
Location: Belmont garden
Date: 2014-0527
Location: My garden, central NJ, Zone 7A
Date: 2016-06-04
Really double flower on Clematis Blue Light
Location: Canton, OH
Location: In my Northern California garden
Date: 2012-04-19

Date: 2016-07-21
This is the first year plant bought as a small liner
Location: Dallas,Texas
Date: 2019-04-15
Location: Dallas,Texas
Date: 4-2019
Location: My garden, central NJ, Zone 7A
Date: 5/19/15
Clematis Blue Light - Impressive 1st Spring
Photo by Kell
Location: West Valley City, UT
Date: 2009-09-03
Location: My garden, central NJ, Zone 7A
Date: 2017-06-18
Lotta flowers
Location: Belmont garden
Date: 2014-05-27
Blooms lighten with age.
Photo by BlissfulGarden
Photo by Kell
Location: Belmont garden
Date: 2013-0523
Location: Belmont garden
Date: 2013-0523
Planted near a hydrangea.

Date: 2012-03-28
Credit Vegetal45
Photo by clintbrown
Location: Zone 4 Wisconsin
Date: 6-25-11
6-25-11 zone 4 Wisconsin
Location: NJ
Date: 2012-05-17
Location: My garden, Cottage-in-the-Meadow Gardens in South Amana, IA
Date: 2011-06-03

Photo courtesy of Brushwood Nursery
  • Uploaded by Joy

Photo courtesy of Brushwood Nursery
  • Uploaded by Joy
Location: Riverview, Robson, B.C.  
Date: 2006-05-31
8:36 pm. A surreal looking blossom.

This one is 2 or 3 years old.
Photo by Roseville
Location: My garden, zone 4 Wisconsin
Date: 2012-05-29
zone 4 Wisconsin
Photo by victor
Photo by Kell
Location: Salt Lake City, Utah, United States
Date: 2019-05-17
Location: My garden, Eagle Point, Oregon
Date: 2018-05-16
Location: Belmont garden
Date: 2012-0513
Totally different color than in 2013.
Location: Belmont garden
Date: 2011-1021
My fault for allowing the clematis to become rootbound as I sough

Date: 2015-06-11
Photo by clintbrown
Location: Belmont garden
Date: 2014-05-27
Location: Belmont garden
Date: 2014-05-27
Location: Knoxville, Iowa
Date: June 2013
This is when the bloom is older, and the outer petals have fallen
Location: Dallas,Texas
Date: 2019-04-04
Location: My garden, zone 4 Wisconsin
Date: 2012-05-29
zone 4 Wisconsin
Location: My garden, zone 4 Wisconsin
Date: 2012-05-29
zone 4 Wisconsin
Photo by victor

Date: 2015-06-11
Location: My garden, zone 4 Wisconsin
Date: 2012-06-03
zone 4 Wisconsin
Location: My garden, zone 4 Wisconsin
Date: 2012-05-31
zone 4 Wisconsin
Location: Collage - kitchen counter and garden
Date: 2011-1021
The scrawny Blue Light roots (vendor is anonymous) were double th

Date: 2015-06-11

Date: 2015-06-11

Date: 2015-06-11

Date: 2012-05-25
Photo by victor

Date: 2015-06-11

Date: 2015-06-11
Location: In my Northern California garden
Date: 2012-04-19
This plant is tagged in:
Image

Comments:
  • Posted by goldfinch4 (Ripon, Wisconsin) on Oct 23, 2011 12:17 PM concerning plant:
    Is a sport of Clematis Mrs. Cholmondeley. Can have single and double flowers at the same time.
  • Posted by BookerC1 (Mackinaw, IL - Zone 5a) on Aug 25, 2014 3:48 PM concerning plant:
    This clematis produces quite large sky-blue blossoms. They may appear to be single blossoms when they initially open, but they then continue to open over a long period of time, until the same bloom is nearly a pom-pom. You may also experience double blooms on the first flush of blooms, and then later a second set of blooms that remain single.

    This clematis took a bit longer to get established than some, growing slowly and only producing a few blooms the first couple of years. They appreciate some shade at their base (head in the sun, feet in the shade), if you can plant a low clumping plant at the base.

    This is a really spectacular clematis, and well worth the patience it takes to reach that first year of really heavy bloom!
  • Posted by Njiris on Jun 4, 2016 7:42 PM concerning plant:
    Each year, this is the third, my clematis Blue Light manages to surpass my expectations. I have read that clematis aren't happy with cold wet springtime weather. After a mild winter, this spring tried to balance things out a bit with many cool and windy nights. And though the annual plants I set out, even the ones after Mother's Day this year were not happy campers, my Clematis Blue Light plants have had their best year yet!
    They started blooming with the irises and are still going strong even though only a few of the late irises remain in flower.
    Have posted 2 photos taken today, 6/4/16. The one showing the ongoing display, the 2nd showing the most double flower we've had to date.
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MissMew On May 3, 2023 Obtained plant
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