White Snakeroot (Eupatorium rugosum (Ageratina altissima))-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers

Wildflowers

White Snakeroot
Eupatorium rugosum (Ageratina altissima)

White Snakeroot
White Snakeroot
 
Features
Clusters of white flowers in late summer. 
 
Culture
Full sun to partial shade; consistently moist to wet sites. 
 
Mature Height
2-4 Feet
 
Native To:
Illinois
Indiana
Iowa
Michigan
Missouri
Ohio
Wisconsin
 
USDA Hardiness Zone
4 - 8 
 
Bloom Color
White
 
 
Bloom Season
August - October
 
Soil Conditions
Moist, Well-Drained
Wet
 
 
Exposure/Light Requirements
Full Sun
Partial Sun/Shade
 
 
Pests and Problems

Environmental Damage


Additional pests and problems that may affect this plant:

No serious insect or disease problems.
 
Additional Notes

Found in woods. Self seeds and may spread underground by rhizomes.