Alphabetical Plant Listing

Clematis crispa (Viorna Group)

Swamp Leatherflower, Curly Clematis, Blue-jasmine, Curlflower, Curly Virgin's Bower, Marsh Clematis, Clematis crispa var. walteri, Coriflora crispa, Viorna crispa, Viorna crispa var. walteri, Viorna obliqua


Clematis crispa (Blue Jasmine) is a herbaceous, perennial climber boasting masses of mildly fragrant, nodding, bell-shaped, pale blue to violet blue flowers, 1-2 in. wide (2-5 cm). Blooming from early spring to early fall, each long-lasting flower bears 4 petal-like lobes recurved at the tips and slightly frilled margins. Blooming profusely over a very long season, Blue Jasmine has a handsome foliage of pinnately compound leaves divided into 3-5 linear to ovate leaflets. The blossoms are followed by very ornamental, fluffy seedheads, which remain on the plant, adding further interest. Vigorous and floriferous, Blue Jasmine climbs by means of twining petioles. It can twine through nearby shrubs or simply be allowed to ramble across the ground. It loses its leaves in mild winters, dies to the ground in harsh winters, then reliably comes back in the spring. The charming flowers attract a variety of pollinators and the seeds provide food for many birds and small wildlife. Blue Jasmine does well on a fence or trellis and makes good cut flowers.

  • Grows up to 6-10 ft. long (180-300 cm) and 3-6 ft. wide (90-180 cm).
  • Thrives in rich, moist to wet soils, in full sun or part shade. Ideally, Clematis prefer having their 'heads in the sun and their feet in the shade'. Keep the roots cool and shaded by other plants or add a layer of pebbles or flat stones at the base. Tolerant of a wide range of soil types, including dry sandy, loamy, mucky or clay soils.
  • This Clematis belongs to the third group of Clematis - a group including Clematis which flower in late summer on growth made in that season. They should be pruned in late winter or early spring and require 'hard pruning': simply cut back the stems to a pair of strong buds about 1ft. (30 cm) above ground level before growth begins in early spring.
  • Keep an eye out for powdery mildew, leaf spots, rust, aphids, vine weevils, slugs and snails, scale, earwigs or spider mites. Deer resistant.
  • Propagate by seeds, root cuttings or softwood cuttings.
  • Native to wet sites as swamps and flood plains of the southeastern United States.
  • As climbers, Clematis are unsurpassed in their long flowering presence, their rich diversity of flower shapes, their wide array of colors and tolerances in terms of exposure and climate. It is no wonder they are so popular! From tree huggers to container varieties, there is a Clematis for every garden and flowers for almost every month of the year! Members of the Ranunculaceae family, they include more than 300 species and hundreds of hybrids. They create year after year a ravishing colorful show in the garden whether solely trained on walls, arbors or trellises, or grown in association with other climbers. They are divided into 3 groups which determine how they should be pruned. Regular pruning of Clematis is important as it promotes strong growth and flowering as well as a harmonious plant. If left unpruned, Clematis can turn into a mass of tangled stems with a bare base and flowers well above eye level.

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Requirements

Hardiness 6 – 9
Plant Type Climbers
Plant Family Clematis
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Fall
Height 6' – 10' (180cm – 3m)
Spread 3' – 6' (90cm – 180cm)
Spacing 36" – 72" (90cm – 180cm)
Water Needs Average, High
Maintenance Low
Soil Type Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained, Moisture Retentive
Characteristics Cut Flowers, Fragrant, Showy
Native Plants United States, Midwest, Illinois, Missouri, Southeast, Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, Southwest, Oklahoma, Texas
Tolerance Clay Soil, Deer, Wet Soil
Attracts Birds, Butterflies
Garden Uses Arbors, Pergolas, Trellises, Ground Covers, Walls and Fences
Garden Styles Informal and Cottage

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Florida Fish and Wildlife, Cultivar413, Flickr

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 6 – 9
Plant Type Climbers
Plant Family Clematis
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early,Mid,Late)
Summer (Early,Mid,Late)
Fall
Height 6' – 10' (180cm – 3m)
Spread 3' – 6' (90cm – 180cm)
Spacing 36" – 72" (90cm – 180cm)
Water Needs Average, High
Maintenance Low
Soil Type Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained, Moisture Retentive
Characteristics Cut Flowers, Fragrant, Showy
Native Plants United States, Midwest, Illinois, Missouri, Southeast, Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, Southwest, Oklahoma, Texas
Tolerance Clay Soil, Deer, Wet Soil
Attracts Birds, Butterflies
Garden Uses Arbors, Pergolas, Trellises, Ground Covers, Walls and Fences
Garden Styles Informal and Cottage

Great Plant Combination Ideas with Clematis

Guides with Clematis

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