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Clematis Species, Chinese Shrub Clematis, Tube Clematis

Clematis heracleifolia

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Species: heracleifolia (hair-uh-klee-ih-FOH-lee-uh) (Info)
Synonym:Clematis davidiana
Synonym:Clematis hookeri
Synonym:Clematis tubulosa
» View all varieties of Clematis




24-36 in. (60-90 cm)

36-48 in. (90-120 cm)


24-36 in. (60-90 cm)


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:

Small - less than 2 inches (5 cm)

Bloom Time:

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Sun Exposure:

Full Sun

Sun to Partial Shade

Other details:

Unknown - Tell us



Pruning Groups:

Group 3 - Summer/Fall bloomers; prune hard in early spring

Patent Information:


Propagation Methods:

From woody stem cuttings

From softwood cuttings

From semi-hardwood cuttings

Seed Collecting:

Bag seedheads to capture ripening seed

Allow seedheads to dry on plants; remove and collect seeds

Properly cleaned, seed can be successfully stored

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


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

Bluffton, Indiana

Minneapolis, Minnesota(2 reports)

Saint Paul, Minnesota(2 reports)

Wykagyl, New York


Portland, Oregon

Seattle, Washington

Wild Rose, Wisconsin

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Gardeners' Notes:


On Apr 7, 2008, Malus2006 from Coon Rapids, MN (Zone 4a) wrote:

This species grow from woody short stems, usually several inches tall and bloom in late fall - a few weeks before some asters and hardy chrysanthemums blooms. The height of the plants usually reach from two to three feet before dying back to the wooden stem in winter. Have very large leaves for a clematis and will grows in woodland shade. Oddly enough it is not sold in the plant trade often even thought it is easy to plant and selfsown.


On Sep 2, 2006, saya from Heerlen,
Netherlands (Zone 8b) wrote:

Tube Clematis or Hyacinth-flower Clematis is a nonclimbing form of clematis yet truly perennial with toothed foliage and skyblue,tubular, star shaped flowers in summer. I grow C. heracleifolia from seeds that I 've traded here on DG. I've sown the seeds at 20C (68F). If theres no germination in 3-4 wks, move the seeds to -4 to +4C (24-39F) for 2-4 wks. You could even try winter sowing. The seedlings will flower in their second year. During my house removal it has survived in a small pot outside in temps down to -15oC. So it's a quite little tough plant with very pretty blue flowers...I find them rather big for the plants size.


On Dec 26, 2005, yuantao from beijng,
Chile wrote:

Tube Clematis is an very interesting plant, its flower varies very much in the wild area in China,the size,color,shape and fragrance is different among different plants, I notice it four 4 years, it is surely a valuable gene resource for breeding.


On Aug 23, 2005, grikdog from St. Paul, MN (Zone 4a) wrote:

A beautiful but unprepresuming shubby clematis in zone 4a. It reseeds but it is not invasive. The flowers have a very light fragrance. The leaves also have a pleasant smell when dried.