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Clematis, Early Large-flowered Clematis, Double Clematis 'Blue Light'


Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Cultivar: Blue Light
Hybridized by Haasterd
Registered or introduced: 1998
» View all varieties of Clematis


Early Large-flowered


6-8 ft. (1.8-2.4 m)


24-36 in. (60-90 cm)

36-48 in. (90-120 cm)


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:

Light Blue

Flower Fragrance:

No fragrance

Bloom Shape:


Bloom Diameter:

Medium - 2 to 5 inches (5 to 12 cm)

Bloom Time:

Mid Spring

Late Spring/Early Summer

Sun Exposure:

Full Sun

Sun to Partial Shade

Other details:

Unknown - Tell us


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

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Can be grown as an annual


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

Moreno Valley, California

San Leandro, California

Sebastopol, California

Durango, Colorado

Keystone Heights, Florida

Batavia, Illinois

Plainfield, Illinois

Bloomfield, Iowa

Kingfield, Maine

Reno, Nevada

Denville, New Jersey

Southold, New York

Raleigh, North Carolina

New Philadelphia, Ohio

Portland, Oregon

Charleston, South Carolina

Gainesboro, Tennessee

Paris, Texas

Plano, Texas

Willis, Texas

Salt Lake City, Utah

Amelia Court House, Virginia

Enumclaw, Washington

South Hill, Washington

Ripon, Wisconsin

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Gardeners' Notes:


On Jun 23, 2011, TVBennett from Enumclaw, WA wrote:

I love this plant it took four years of sleeping before it got enought root to bloom, well worth the wait! What I'm finding is that there is a name conflict with this plant. The one that I got is lovely blue with the hairy lime green center but I've seen it listed in catalogs as just being very double lavender/blue. Not really sure what happened but the "Blue Lights" Vanso, that is offered in the catalogs now is not the "Blue Lights" that I got from Van Dyck's in June of 2003. Not sure who to ask what is what.


On Jun 15, 2010, BirdOfPrey from Reno, NV wrote:

**UPDATE**...Well it's almost one year later. All but one of the blue ones died. That one however is coming back with a vengeance.Soil was good and watered like they said to. They started off good, great even. The pink ones went first.Saying the went quick would be an understatement. Most fragile plant I ever bought. Of the blue ones only 2 remained and one just died. Seems this plant likes having it's roots covered by rocks or some other similar covering. Winter this year was not bad at all so I'm a lil stumped. Had I known about the rock thing I would have done it to all of them. Mid May 2011 now and the remaining blue one goes to ground. Here's hoping. ~~~~ORIGINAL POST ---> ~~~~~~Ok... Got this plant from an online retailer..4 blue and 2 pink. Through no fault of theirs USPS took 10 da... read more


On Apr 2, 2009, seedpicker_TX from (Taylor) Plano, TX (Zone 8a) wrote:

This is my very favorite clematis. It likes a lot more sun than most clematis. The flowers are HUGE. They last for several weeks, and even when they are done, the center petals hang on for another few days.
Even in my alkaline soil, they are very true blue.
There can be two flower forms of this, on the same plant. Sometimes they open single and sometimes double. The double blooms are the most showy.
If you can find some of this from Monrovia, buy it! They sell huge specimens with great root systems. I've purchased this from several places(Wayside, Lowes, and a garden center carrying Monrovia) and the Monrovia was by far the best, and largest one for the price.
The one from Wayside is growing painfully slowly, and the Lowes one is doing ok. The Monrovia ... read more


On Jul 6, 2008, Merrilee from Batavia, IL (Zone 5a) wrote:

This clematis is worth the extra effort. I planted it 4 years ago. Each year I would get just 1-3 small blossoms on it. This year I was going to dig it up and replace it with another clematis. It took off and I currently have 12 blooms with more on the way. (early July) Mine is not real blue, more of a lavender but very full and beautiful. I have many different kinds of clematis in my yard but this one is very special.


On Aug 5, 2005, DreamOfSpring from Charleston, SC (Zone 9a) wrote:

My blue light bloomed this year for the 1st time (It's maybe 2 years old). The spot where I planted it gets very little sun, so I had feared it would not bloom. This spring it produced dozens of large sky blue blooms that seemed to last forever. Then, much to my surprise, and despite my failure to remove the spent blooms, it continued to bloom off and on all summer long! I have dozens of clematis plants. None have bloomed so tirelessly as this one. Even in the hottest part of summer (and I live in the South US!) when no other clematis in my yard was even thinking of blooming, this plant seemed to always display a few blooms. And it's also quite lovely!


On Apr 27, 2005, Gourd from Mesilla Park, NM wrote:

Container grown and bloomed the first year. Good color, the center takes a few days to fill out. This is photo of first day it opened.