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Asclepias speciosa ‘Davis’ (photo courtesy of Annie’s Annuals & Perennials)
Asclepias speciosa ‘Davis’ (photo courtesy of Annie’s Annuals & Perennials)

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Zone
Zones 1-24
Full Sun
Full
Minimal Water
Minimal
Toxicity
All parts are poisonous if ingested

Asclepias speciosa

Showy Milkweed
Apocynaceae
Perennials, Flowers

ASCLEPIAS

Milkweeds (so named for their milky sap) are the best-known representatives of this group of plants. Bloom in summer, typically bearing many small, starlike flowers in broad, flattened clusters at branch tips. All have inflated seedpods with silky seeds. Just a few species are cultivated in gardens.

Asclepias speciosa

Native to western and central North America. This striking perennial grows 2–4 ft. tall and not quite as wide; may spread by underground stems to form colonies. Thick, upright stems hold big, softly hairy leaves of gray; summer flowers are 3-in.-wide balls of fragrant, purplish pink. Long winter dormancy; new shoots may not appear until midspring. Needs only occasional water once established.

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