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


Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Cultivar: Multi Blue
Additional cultivar information:(aka Multiblue)
Hybridized by Bouter-Zoon
Registered or introduced: 1984
» View all varieties of Clematis
View this plant in a garden


Early Large-flowered


8-10 ft. (2.4-3 m)

10-12 ft. (3-3.6 m)


36-48 in. (90-120 cm)

4-6 ft. (1.2-1.8 m)


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:

Medium Blue


Flower Fragrance:

No fragrance

Bloom Shape:


Bloom Diameter:

Large - 5 to 8 inches (12 to 20 cm)

Bloom Time:

Late Spring/Early Summer

Late Summer/Early Fall

Sun Exposure:

Sun to Partial Shade

Other details:

Unknown - Tell us


All parts of plant are poisonous if ingested

Handling plant may cause skin irritation or allergic reaction

Pruning Groups:

Group 2 - Repeat bloomers; prune immediately after flowering

Patent Information:


Propagation Methods:

From seed; sow indoors before last frost

By air layering

By serpentine layering

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Grow outdoors year-round in hardiness zone


This plant is said to grow outdoors in the following regions:

Elk Grove, California

Los Angeles, California

Modesto, California

Pismo Beach, California

San Leandro, California

Van Nuys, California

Wilmington, Delaware

Tennille, Georgia

Meridian, Idaho

Chicago, Illinois

Hampton, Illinois

Mount Prospect, Illinois

Mt Zion, Illinois

River Forest, Illinois

Indianapolis, Indiana

Smiths Grove, Kentucky

Taylorsville, Kentucky

Benton Harbor, Michigan

Grand Rapids, Michigan

Royal Oak, Michigan

Traverse City, Michigan

Trenton, Michigan

Albertville, Minnesota

Lincoln, Nebraska

Averill Park, New York

Chester, New York

Jefferson, New York

Mahopac, New York

New York City, New York

Rome, New York

Southold, New York

Advance, North Carolina

Fargo, North Dakota

Cincinnati, Ohio

Coshocton, Ohio

Portland, Oregon

Norristown, Pennsylvania

Wilkes Barre, Pennsylvania

Conway, South Carolina

Simpsonville, South Carolina

Aberdeen, South Dakota

Cleveland, Tennessee

Collierville, Tennessee

Hendersonville, Tennessee

Hixson, Tennessee

Knoxville, Tennessee

Talbott, Tennessee

Bulverde, Texas

Irving, Texas

Lewisville, Texas

Willis, Texas

Locust Dale, Virginia

Arlington, Washington

Arlington Heights, Washington

Cathan, Washington

John Sam Lake, Washington

North Marysville, Washington

Oso, Washington

Priest Point, Washington

Raymond, Washington

Shaker Church, Washington

Smokey Point, Washington

Stimson Crossing, Washington

Walla Walla, Washington

Weallup Lake, Washington

Mc Farland, Wisconsin

show all

Gardeners' Notes:


On May 13, 2022, JennysGarden_TN from Collierville, TN wrote:

It is now blooming in my zone 7b garden. Its huge double blue blooms are very showy.


On Mar 7, 2016, coriaceous from ROSLINDALE, MA wrote:

Blackened crispy leaves are often due to a common fungal disease called clematis wilt. Large-flowered clematis are more prone to clematis wilt than the species and small-flowered hybrids.

Clematis and tomatoes are two exceptions to the usual rule, and are best planted 6 inches deeper than the soil level in the pot. This protects the stem bases from mechanical damage, and helps prevent clematis wilt, whose fungus enters where there's damage. It also helps keep the roots cool.

Many small-flowered hybrids are spectacular in flower, and long-blooming. I consider them indispensable, especially th... read more


On Jun 13, 2015, crayondoom from Fargo, ND (Zone 4a) wrote:

Love this clematis. Even when it's large flowers fall off the puffs in the center still look exotic and great. Will definitely try to propogate this one.


On Jul 5, 2014, hardwind from Shawmut, MT wrote:

i planted this last spring, got it in the mail nice and healthy started growing good, then started wilting turn dark brown, thought it was dying dug it up great roots roots moved it little cooler spot, this spring it came up turned yellow growing really slow. I planted another 1 where it was last year was doing good now turning yellow has a bud but it doesn't look happy direct morning sun in shade from 2pm on, planted a ground cover sedum on top maybe not enough or maybe should have planted it deeper. Any ideas. I live 30 miles north of Big Timber Mt. 59078. I think zone 4. Thanks hardwind


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

I bought this plant at Michigan Bulb under the name Tidal Wave. Just found out that it is actually called Mulit Blue. It survived the winter in a flower pot. The flower are stunning. One of my favorite Clematis.


On May 24, 2011, canadianplant from thunder bay,
Canada (Zone 4b) wrote:

I purchased this, as a replacement for one that died ( which I also purchased a few weeks before). This was summer 2010. It is in a sunny warm corner, but was behind my weigelia, so the roots werent in full sun, just a warm spot.

It didnt grow to more then 2 feet, before the whole thing died back. I thought " well, i guess the corner is too warm, and I fried it". So this year, I decided not to plant any clematis along that wall.

Today, I take a look, and I notice this clematis is alive and more then well. Its taller then the other ones I have ( they all died back to a few inches from the ground.) So this year, im going to give it a heavy multch, and shade it with another plant.

It definetly suprised me to see this come back.


On Nov 3, 2009, annakins from Aberdeen, SD wrote:

Great vine to have with Jackmanii. Covers the bottom half while Jackmanii climbs higher. Want to try serpentine layering with it next spring for more plants. Have not had double blooms, only singles for 3 years. Maybe next year :).


On May 21, 2009, MidnyteShadows from Cleveland, TN wrote:

I planted mine two years ago and it keeps getting better. The blooms are bigger this year. Mine got some kind of fungus at the end of its first season, I removed all affected areas of the plant, added more bonemeal (they love that) to the soil and watered a little more. Perfect! Cured very fast, now no sign of infection on plant. One note: Think about placement. I put it in my front flower bed by my front door, so when it rains hard the water from the roof sometimes knocks the petals off of the older flowers.


On Oct 24, 2008, Dodsky from Smiths Grove, KY (Zone 6b) wrote:

I've had this clematis for several years and after the first year it has never failed to impress me with it's beautiful blooms and vigor. I've had to move it three times over the past eight years, most recently a few weeks ago, and I have no doubt it will bloom as it always does with a big flush of blooms in mid-spring, and then (usually) a small flush of blooms in late summer. The rich purple-blue blooms are large and very full looking. As others have mentioned, after the outer large petals of the double flowers fall off the inner, finer puff of petals remains for at least another week. The blooms gradually turn a lighter shade of silvery purple that is quite pretty. The first year the blooms were mostly singles with a few doubles, but since then it has bloomed nearly all doubles in ... read more


On Jul 21, 2004, oeffltd from Fakenham Norfolk,
United Kingdom wrote:

This plant grows well in Norfolk England in full sun
the flowers come in spring and July.
The flowers are stunning.


On Jun 15, 2004, kplinn52 from Portland, OR wrote:

The blossoms on my MultiBlue were stunning this year. Even when the outside petals turn brown and fall off (with a little help from me) the inside puff of petals lasts several more weeks.


On Jun 9, 2003, mikamouse from Warren, MI wrote:

I found that placing rocks around the roots helps keep the roots cool while at the same time allowing the vine to have the sun it needs.