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Callirhoe involucrata (Malvaceae)
A hardy, drought tolerant, sprawling perennial native to Texas and the central United States. The numerous trailing stems spread vinelike over the ground originating from a carrot-like tuber. The magnificent dark purple-red or wine colored flowers are numerous found at the end of slender stems. The flowers close each evening and remain permanently shut after polination. The stems and leaves of the entire plant die back in the heat of summer and should be trimmed to promote fall growth. Easy to grow from seed, or can be started from the carrot-like tuber. Prefers full sun in gravelly or sandy soils.
Average planting success with this species: 70%
Height: 1/2-1 1/2 feet
Germination: 28-56 days
Optimum soil temperature for germination: 68F-80F
Sowing depth: 1/8"
Blooming period: February-July
Average seeds per pound: 82,100
Seeding rate: 5 lbs. per acre
1 oz Covers: 545 sq. ft.
Suggested use: Rock gardens, borders, wooden barrels, hanging baskets, meadows.
Miscellaneous: Keeping the faded or pollinated blooms picked will prolong the growing season. The trailing stems do not root as one might expect.