General Culture:
Grow in fertile, medium moisture, well-drained, humusy/peaty loams in full sun to part shade. Moisture retentive soils are important but so is good drainage. Best flowering occurs in full sun. Plants usually become less vigorous and produce fewer flowers as the amount of shade increases. Light staking (as with pea sticks) helps prevent undue sprawling of plant foliage. Roots should be kept cool, shaded and uniformly moist. Bloom occurs on the current year’s growth. Stems die back to the woody base each year in fall after frost.
Noteworthy Characteristics:
Clematis integrifolia, commonly known as solitary clematis, is a non-climbing, woody-based, herbaceous perennial that typically grows in a dense, upright to sprawling, shrubby mound of undivided leaves to 12-24” tall. Medium green leaves (to 5 1/2” long) are entire, ovate-lanceolate, conspicuously-veined and sessile, and will form a dense foliage clump. Solitary, nodding, urn-shaped, blue flowers, each with four twisted sepals and creamy anthers, appear in a long summer bloom. ‘Rose Colored Glasses’ was reportedly selected as a seedling from a batch of C. integrifolia ‘Rosea’. It is noted for producing rose-pink flowers (to 2” long) that are somewhat larger than flowers on species plants. Each flower appears singly atop its own slender stalk (pedicil to 8” long) from May to July with continued lesser bloom into September. Each flower is followed by a plumose, ornamentally-attractive, silvery-green seed head.
Problems:
No serious insect or disease problems.
Uses:
This non-climbing clematis is best grown in large groups or massed. Border fronts, rock gardens, cottage gardens or meadows.
© Missouri Botanical
Garden, 2001-2010
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