Blue Lobelia (Lobelia siphilitica)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers

Wildflowers

Blue Lobelia
Lobelia siphilitica

Flowers of Blue Lobelia
Flowers of Blue Lobelia
 
Features
Blue flowers striped with white. 
 
Culture
Partial shade; consistently moist to wet soils.  
 
Mature Height
1-3 Feet
 
Native To:
Illinois
Indiana
Iowa
Michigan
Missouri
Ohio
Wisconsin
 
USDA Hardiness Zone
3 - 9 
 
Bloom Color
Blue
 
 
Bloom Season
August - September
 
Soil Conditions
Moist, Well-Drained
Wet
 
 
Exposure/Light Requirements
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 wet sites and moist woods. Blue Lobelia will self seed.