Clematis x hybrida

Clematis hybrids are woody, perennial, twining vines in the buttercup family (Ranunculaceae). They are derived from two, large-flowered clematises (themselves likely hybrids of unknown parentage) that arrived in England in the late 19th century from China. They were used by nurserymen for crossing to make large-flowered hybrids that could be grown commercially. The species epithet is Latin for “hybrid.”

Clematis hybrids prefer clay, loam, or sandy soils with a pH near 7. Keep the soil cool (by mulching or overplanting), evenly moist, and well-drained. The clematis hybrids tolerate partial shade but will flower best in full sun. They are in the Type 2 pruning group and should be pruned lightly in late winter. Propagate by stem cuttings. 

There are hundreds of clematis hybrids that bloom spring, summer and fall in shades of blue, pink, red, white, purple, yellow, cream and bi-colors. During a single growing season, a large-flowered hybrid may produce over 100 star- or saucer-shaped blossoms ranging in size from 4 to 10 inches in diameter. The flowers may be single, double or semi-double. 

Clematis hybrids are weak climbers and may perform best as an interesting ground cover in a naturalized area, a garden accent or specimen, a container plant, or even a houseplant. Their flowers are showy, fragrant and long-blooming.

Insects, Diseases, and Other Plant Problems: Pests of clematis vary from slugs and earwigs to deer and rabbits (herbivores eat only young shoots, which have not yet developed the toxin).

VIDEO Created by Elisabeth Meyer for "Annuals, Perennials, Vines, and Groundcovers" a plant identification course offered in partnership with Longwood Gardens. 

More information on Clematis.