Common Milkweed (Asclepias syriaca)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers

Wildflowers

Common Milkweed
Asclepias syriaca

Common Milkweed
Common Milkweed
 
Features

Clusters of light pink or lavender flowers followed by warty seedpods filled with seeds attached to long white hairs.

 
 
Culture
Full sun; moist, well drained soils to dry soils. 
 
Mature Height
3-5 Feet
 
Native To:
Illinois
Indiana
Iowa
Michigan
Missouri
Ohio
Wisconsin
 
USDA Hardiness Zone
3 - 9 
 
Bloom Color
Lavender
Pink
 
 
Bloom Season
June - August
 
Soil Conditions
Dry
Moist, Well-Drained
 
 
Exposure/Light Requirements
Full Sun
 
 
Pests and Problems

Environmental Damage


Additional pests and problems that may affect this plant:

No serious insect or disease problems. Caterpillars of Monarch butterfly will feed on this plant. Milweed beetles and milkweed bugs are also common but do little damage.
 
Additional Notes

Found in fields and along roadsides. Monarch butterfly larvae feed on the foliage of this plant and absorb chemicals that make them toxic to predators. This plant can grow very aggressively.