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Clematis crispa

swamp leather flower add to wishlist

Plant types and subtypes: Climbers, Perennials

Light Requirements: sun, part-sun, part-shade

Water Use: medium, high

Soil Moisture: moist, wet

Soil Description: acid, neutral, rich, average, loam, clay, sand

Height: 5'-10'

Bloom Time: March, April, May, June, July, August, September

Bloom Color: white, purple, pink, lilac, lavender, blue

Leaf Color: green

Hardiness Zone: 6, 7, 8, 9

Additional Tags: attracts birds, attracts butterflies, climbing, fall interest, fragrant flowers

Flower of Clematis crispa (swamp leather flower)
  • Flower of Clematis crispa (swamp leather flower)
  • Flower of Clematis crispa (swamp leather flower)
  • Flower of Clematis crispa (swamp leather flower)
  • Flower of Clematis crispa (swamp leather flower)

Pricing & Availability


Clematis crispa

Also known as:

swamp leather flower


blue jasmine


blue jasmine leather-flower


marsh clematis


curly clematis



Scientific Synonyms:

Coriflora crispa, Viorna crispa, Viorna obliqua


Clematis crispa is a non-aggressive vine that rarely grows more than 8'. The flowers are bell-shaped with upward curving sepals. They are mildly fragrant and their color can vary from whitish to any shade of pink, blue or purple. As with most Clematis, it produces attractive seed heads which give the plants fall interest.


As the common name "swamp leatherflower" indicates, this is a moisture loving plant. Well adapted to wet environments, care should be taken to keep the soil moist, particularly if planted in hotter climates or in full sun. Rich, acidic soil is preferable. It does well as a potted specimen, and can climb on walls, fences, trellises and columns without additional support. It enjoys an extended bloom period beginning mid-spring, slowing down during summer, only to pick up again through early to mid fall. Blooms March through September. Zones 6-9


Propagate from freshly collected seeds in fall. Stored seeds will need to undergo cold stratification before spring planting. May be propagated by softwood cuttings in summer, and also by root cuttings or division in early spring.

Additional Notes

Plants will die back to the ground in colder climates, limiting their overall height.

Native Range & Classification

Recorded County Distribution: USDA data

Native Range:

USDA Endangered Status:

  • Endangered: IL
  • Threatened: KY


Kingdom Plantae Plants
Subkingdom Tracheobionta Vascular plants
Superdivision Spermatophyta Seed plants
Division Magnoliophyta Flowering plants
Class Magnoliopsida Dicotyledons
Subclass Magnoliidae
Order Ranunculales
Family Ranunculaceae Buttercup family
Genus Clematis leather flower
Species Clematis crispa swamp leather flower