Clematis crispa
Common Name(s):
- Phonetic Spelling
- KLEM-ah-tiss KRISP-ah
- This plant has high severity poison characteristics.
- See below
- Description
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Blue Jasmine is a clematis that is a semi-woody vine native to wet sites as swamps and flood plains of southeastern North America. The vine usually dies back to the ground in winter. Be sure to provide it with consistent moisture and fertilization in spring to support the rapid growth. Mulch around the plant to help keep the roots cool and moist. The blooms occur in the spring and again in the fall with possible periodic blooms during the summer.
It needs consistently moist soils, so consider planting near water gardens, rain gardens, streams, or in native plant gardens. Tolerates partial shade but will flower best in full sun. It can either climb a trellis, fence, wall, or arbor or be unsupported as a ground cover.
Habitat: Marshes, tidal and non-tidal swamps, floodplain forests, disturbed wet or moist areas
Insects, Diseases, and Other Plant Problems: No serious problems. Wilt can sometimes be fatal.
VIDEO Created by Elisabeth Meyer for "Annuals, Perennials, Vines, and Groundcovers" a plant identification course offered in partnership with Longwood Gardens.
- Profile Video:
- See this plant in the following landscape:
- Cultivars / Varieties:
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- Tags:
- Cultivars / Varieties:
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- Tags:
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Attributes:
- Genus:
- Clematis
- Species:
- crispa
- Family:
- Ranunculaceae
- Life Cycle:
- Perennial
- Country Or Region Of Origin:
- Central & South Eastern U.S.A.
- Distribution:
- AL , AR , FL , GA , IL , KY , LA , MO , MS , NC , OK , SC , TN , TX , VA
- Wildlife Value:
- Butterflies, bees, and hummingbirds are attracted to the flower. Less damage by deer than other clematis.
- Play Value:
- Attracts Pollinators
- Particularly Resistant To (Insects/Diseases/Other Problems):
- Heat tolerant.
- Climbing Method:
- Twining
- Dimensions:
- Height: 6 ft. 0 in. - 10 ft. 0 in.
- Width: 3 ft. 0 in. - 6 ft. 0 in.
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Whole Plant Traits:
- Plant Type:
- Ground Cover
- Herbaceous Perennial
- Native Plant
- Perennial
- Poisonous
- Vine
- Woody Plant Leaf Characteristics:
- Deciduous
- Habit/Form:
- Climbing
- Spreading
- Growth Rate:
- Rapid
- Maintenance:
- High
- Texture:
- Medium
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Cultural Conditions:
- 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
- High Organic Matter
- Loam (Silt)
- Sand
- Soil pH:
- Acid (<6.0)
- Soil Drainage:
- Good Drainage
- Moist
- Occasionally Wet
- Available Space To Plant:
- 6-feet-12 feet
- NC Region:
- Coastal
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 6b, 6a, 7b, 7a, 8b, 8a, 9b, 9a
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Fruit:
- Fruit Value To Gardener:
- Showy
- Display/Harvest Time:
- Fall
- Summer
- Fruit Type:
- Capsule
- Fruit Length:
- < 1 inch
- Fruit Width:
- < 1 inch
- Fruit Description:
- Attractive spider-like seed heads each with a silky-plumose tail. Flowers display from June to October.
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Flowers:
- Flower Color:
- Blue
- Pink
- Purple/Lavender
- White
- Flower Inflorescence:
- Head
- Flower Value To Gardener:
- Fragrant
- Showy
- Flower Bloom Time:
- Spring
- Summer
- Flower Shape:
- Bell
- Flower Petals:
- Colored Sepals
- Flower Size:
- 1-3 inches
- Flower Description:
- 1-2 inch blooms in April-August are blue-purple with 4-8 strongly recurved sepals and many stamens.
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Leaves:
- Woody Plant Leaf Characteristics:
- Deciduous
- Leaf Color:
- Green
- Leaf Type:
- Compound (Pinnately , Bipinnately, Palmately)
- Leaf Arrangement:
- Alternate
- Leaf Shape:
- Lanceolate
- Obovate
- Leaf Margin:
- Entire
- Hairs Present:
- No
- Leaf Length:
- 1-3 inches
- Leaf Width:
- < 1 inch
- Leaf Description:
- Compound stems have 3-5 oval leaflets.
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Stem:
- Stem Is Aromatic:
- No
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Landscape:
- Landscape Location:
- Patio
- Vertical Spaces
- Landscape Theme:
- Butterfly Garden
- Native Garden
- Pollinator Garden
- Rain Garden
- Water Garden
- Design Feature:
- Screen/Privacy
- Specimen
- Attracts:
- Bees
- Butterflies
- Hummingbirds
- Resistance To Challenges:
- Black Walnut
- Deer
- Rabbits
- Wet Soil
- Problems:
- Poisonous to Humans
- Problem for Cats
- Problem for Dogs
- Problem for Horses
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Poisonous to Humans:
- Poison Severity:
- High
- Poison Symptoms:
- Clematis can cause severe mouth pain and ulcers if eaten. Toxic to dogs, cats, horses. Clinical signs are salivation, vomiting, diarrhea. In humans, symptoms may include dizziness, confusion, fainting, and convulsions. Fatalities are rare, due to the rapid and intense bitter taste and mouth irritation from eating. Gastric lavage is recommended and anti-inflammatory to soothe irritated tissue. Contact dermatitis results in skin redness and burning sensation for some people, gardening gloves are recommended.
- Poison Toxic Principle:
- protoanemonin
- Causes Contact Dermatitis:
- Yes
- Poison Part:
- Leaves
- Sap/Juice
