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Wasowski, Sally and Andy
Asclepias sullivantii Engelm. ex Gray
Prairie milkweed, Sullivant's milkweed, Smooth milkweed
USDA Symbol: ASSU3
USDA Native Status: Native to U.S.
One to several stout, erect stems, 2-3 ft. tall, bear large, domed clusters of pink or pinkish-white flowers at the top or on stalks from leaf axils. Leaves are oval, thick, and somewhat succulent.
Bloom InformationBloom Color: Pink
Bloom Time: Jun , Jul , Aug
AR , IA , IL , IN , KS , MI , MN , MO , ND , NE , OH , OK , SD , WI Canada: ON Native Distribution:
S. Ont. to MN, s. to OH, KY, n. AR & e. KS Native Habitat:
Prairie, Meadow, Field, Wet Meadow, Prairie, Field USDA Native Status: L48(N), CAN(N)
Growing ConditionsWater Use: Medium
Light Requirement: Sun
Soil Moisture: Moist , Wet
Soil Description: Various moist soils.
Conditions Comments: Not picky.
All plants in the genus
Asclepias are probably somewhat toxic, some fatally so, to both humans and animals. The sap
of some causes skin irritation in humans. POISONOUS PARTS: All parts. Toxic only in large quantities. Syptoms include, vomiting, stupor, weakness, spasms. Toxic Principle: Cardiac glycosides and resinoids. (Poisonous Plants of N.C. State) Conspicuous Flowers:
Butterflies Larval Host:
Butterflies and Moths of North America (BAMONA)
is a larval host and/or nectar source for:
PropagationDescription: Root cuttings can be taken in fall or early spring. Seeds may be sown outside in late fall or the following spring. Germination of spring-planted seeds is enhanced by moist stratification.
Seed Collection: Not Available
Seed Treatment: Stratify 3 months at 40 degrees.
Commercially Avail: yes
From the National Suppliers Directory
According to the inventory provided by Associate Suppliers, this plant is available at the following locations:
- Westfield, WI
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Record Modified: 2012-12-07
Research By: TWC Staff