Common Name:

General Information

Clematis connata is a vigorous deciduous climbing plant that can grow up to 7 metres tall, sometimes more. It scrambles into the surrounding vegetation, attaching itself by means of twining leafstalks[, ].
The plant is harvested from the wild for local use as a medicine. It is grown as an ornamental, valued especially for its late summer and autumn flowering.

Known Hazards

Although no reports of toxicity have been seen for this species, some if not all members of this genus are mildly poisonous. The toxic principle is dissipated by heat or by drying[].

Botanical References

, ,

Range

E. Asia - Himalayan regions of Pakistan, India, Nepal, Bhutan and southern China (Zixang, Yunnan, Sichuan, Guizhou)

Habitat

Shady forests, scrub, especially along the sides of streams or rivers; at elevations from 2,000 - 3,400 metres[, , ].

Properties

Medicinal Rating
Habit	Deciduous Climber
Height	7.00 m
Growth Rate	Fast
Pollinators	Bees, Flies
Cultivation Status	Ornamental, Wild

Cultivation Details

Clematis connata is native to the temperate zone of the Himalayas, where it can be found at elevations up to 3,400 metres. A moderately cold-tolerant plant, when fully dormant it can withstand temperatures down to about -20°c[].
Requires a warm, sheltered sunny position and plenty of water during the growing season[]. Prefers a deep moist soil with its roots in the shade[, ]. Dislikes poorly-drained heavy clay soils, but grows well in clay if grit is added for drainage[, ]. Dislikes light sandy soils[]. Succeeds in acid as well as alkaline soils[].
When planting out, in order to avoid the disease 'clematis wilt', it is best to plant the rootball about 8cm deeper in the soil. This will also serve to build up a good root crown of growth buds[].
A very vigorous plant, with new shoots extending up to 6 metres in a season. It can be rather invasive in the garden[].
A twining plant[]. The leafstalks wrap themselves around twigs and branches for support. When a side of the stalk touches an object, the growth on that side slows down whilst the other side grows at its normal rate - this causes the leaf stalk to entwine the object it is touching[].
Plants flower on the current seasons growth. They often require no pruning, especially if left to clamber into large shrubs and trees. Weak or dead stems can be removed in the winter and, where pruning may be required to reduce the size of the plant, shoots can be cut back by up to two thirds in the winter[].
Plants in this genus are notably resistant to honey fungus[].
Plants seem to be immune to the predations of rabbits[].
A greedy plant, inhibiting the growth of nearby plants, especially legumes[].

Edible Uses

None known

Medicinal

The juice of the plant is inhaled to relieve sinusitis[].

Other Uses

None known

Propagation

Seed - best sown as soon as it is ripe in a cold frame[, ]. Sow stored seed as soon as it is obtained in a cold frame. Pre-soak the seed for 12 hours in warm water and remove as much of the tail and outer coat as possible[]. A period of cold stratification is beneficial[]. The seed germinates in 1 - 9 months or more at 20°c[]. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in a cold frame for the first winter. Plant out in late spring or early summer, after the last expected frosts.
Internodal cuttings of soft to semi-ripe wood, late spring in sandy soil in a frame[].
Layering of old stems in late winter or early spring[].
Layering of current seasons growth in early summer[].