University of Wisconsin-Madison | Botany Plant Growth Facilities

Botanical Garden

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Genus: Cosmos Species: bipinnatus Common Name: Cutleaf Cosmos Family: Asteraceae Order: Asterales Native: Mexico Habit: Annual Height: 1 to 4 feet Width: 2 to 3 feet Flowering Season: Summer Flower Color: Purple, pink, red or white Propagation: Seed Note: Cutleaf Cosmos is suitable for cut flower and wildflower gardens along with garden backgrounds. Protect this plant from strong wind. Overly rich soil stimulates vegetative growth resulting in less flowering. Monitor plant for aphids and Japanese beetles. Prefers sunny to partly shady, moderately dry, well-drained, sandy, non-overly rich soil.