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Italian Clematis

Clematis viticella (KLEM-ah-tiss vy-tee-CHELL-uh)

Family: Ranunculaceae Non-native Vine (vertical)

Italian clematis is a deciduous or evergreen, perennial vine in the buttercup family (Ranunculaceae) native from southern Europe to Asia. The specific epithet is Latin for “small vine.” Plant in full sun but provide shade for the roots. Good draining moist soils with neutral to alkaline pH are ideal. Italian clematis blooms on new wood so severely prune it back to about 1 foot tall in late winter or early spring (Type 3). Propagate by layering or stem cutting. This species is highly resistant to clematis wilt. Italian clematis grows rapidly to a height of 10 to 15 feet and a width of 3 to 5 feet. It has a long bloom season from summer to fall, boasting showy deep purple flowers with many yellow stamens. The flowers are followed by attractive small, dry fruits each with a silky, feathery tail. This plant is a great climber and can be trained to grow on an arbor, along a fence, rock wall, or other vertical space. It can spread along the ground in a woodland or naturalized area, spill out of a container placed on a patio, or provide a backdrop in a cottage or English garden. Insects, Diseases, and Other Plant Problems: Aphids may attack young growth. Slugs, snails, and voles may damage young roots. Plants are susceptible to powdery mildew. VIDEO Created by Elisabeth Meyer for "Annuals, Perennials, Vines, and Groundcovers," a plant identification course developed in partnership with Longwood Gardens. More information on Clematis .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 58 attributes.

How it fits the guild

Guild layer 6 - Vine (vertical) Optimal soil pH Alkaline (>8.0); Neutral (6.0-8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Often confused with Cobaea scandens
Fills a similar niche Clematis texensis Clematis x hybrida Clematis x jackmanii

Full plant profile

Growing Conditions
Plant type
Herbaceous Perennial; Perennial; Poisonous; Vine
Life cycle
Perennial; Woody
USDA zones
4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Clay; Loam (Silt); Sand
Soil pH
Alkaline (>8.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage | Moist
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 10 ft. 0 in. - 15 ft. 0 in. | Width: 3 ft. 0 in. - 5 ft. 0 in.
Growth rate
Rapid
Maintenance
Low
Canopy layer
6 - Vine (vertical)
Form & Appearance
Habit / form
Cascading; Climbing; Spreading
Texture
Medium
Foliage
Deciduous
Leaf color
Green
Leaf type
Compound (Pinnately , Bipinnately, Palmately)
Leaf arrangement
Alternate
Hairs present
No
Leaf detail
Leaves are alternate and pinnately divided.
Flower color
Purple/Lavender
Flower value
Long Bloom Season; Showy
Flower shape
Bell
Flower size
1-3 inches
Flower detail
Purple flowers in mid to late summer with 4-8 petal-like parts 3" across on new wood, so severely prune in early spring.
Bloom time
Fall; Summer
Fruit type
Achene
Fruit value
Showy
Fruit detail
Small, dry fruits (each with a silky-plumose tail). It has whorled seed heads.
Wildlife & Ecology
Native status
Non-native
Origin
Southern Europe to Asia
Attracts
Bees; Butterflies; Hummingbirds
Food & Medicine
Fruit type
Achene
Landscape Use
Landscape location
Container; Naturalized Area; Patio; Rock Wall; Vertical Spaces; Woodland
Landscape theme
Cottage Garden; English Garden
Design feature
Screen/Privacy
Garden tags
#deciduous #purple #vibrant #poisonous #full sun tolerant #summer flowers #fall flowers #large flowers #showy flowers #purple flowers #exotic looking #fall interest #cottage garden #easy to grow #fast growing #pink flowers #problem for dogs #problem for horses #problem for cats #arbor #container plant #English garden #contact dermatitis #disease resistant #partial shade tolerant #vine #fence #woodland #climber #trellis #twining
Problems & Resistance
Insect problems
Slugs & Snails on Ornamental Plants; Aphids on Ornamental Landscape Plants
Problems
Contact Dermatitis; Poisonous to Humans; Problem for Cats; Problem for Children; Problem for Dogs; Problem for Horses
Resistant to
Deer; Diseases; Rabbits
Particularly resistant to
Resistant to clematis wilt
Propagation
Layering; Stem Cutting
Poison severity
High
Poison parts
Flowers; Fruits; Leaves; Sap/Juice; Seeds; Stems
Poison symptoms
All species are toxic-- and all parts are toxic. CAUSES SEVERE PAIN IN THE MOUTH IF EATEN! SKIN IRRITATION MINOR OR LASTING ONLY FOR A FEW MINUTES. Poisonous through dermatitis, ingestion, and inhalation. Symptoms include a burning sensation of mouth and mouth ulcers; skin redness and burning sensation, salivation, vomiting, diarrhea.
Toxic principle
protoanemonin
Contact dermatitis
Yes
Toxicity summary
High severity poison; parts: Flowers; Fruits; Leaves; Sap/Juice; Seeds; Stems; contact dermatitis

Planted at Hunnicutt

Nobody’s planted this one yet.