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Asclepiadaceae

Asclepias

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Asclepias tuberosa

Flowers of plants in this genus are produced in umbrel-like clusters with numerous small flower groups to 1 inch wide. The flowers are followed by green fruits that ripen to yellowish-brown and split open to reveal their seedy contents. The leaves are simple, narrow lance-shaped, or ovate.

Noteworthy Characteristics

CareGrow in fertile, well-drained soil in full sun. Some species like more water.

PropagationSow tender seeds at 61° to 64°F in later winter. Sow hardy seeds in a cold frame in early spring. Divide plants or take basal cuttings in spring.

ProblemsUnder glass, watch for whiteflies and spider mites. Aphids and mealybugs can be a problem when flowering. In the southeast, rust and leaf spot are common.

Species and cultivars

More From the Plant Guide

Winter Interest

Partial Shade

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