Obedient Plant (Physostegia virginiana)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers

Wildflowers

Obedient Plant
Physostegia virginiana

Flowers of Obedient Plant
Flowers of Obedient Plant
 
Features

Tubular lavender flowers in an upright spike; a white flowered variety exists.

 
 
Culture
Full sun to partial shade; moist, well drained to wet soils. 
 
Mature Height
1-4 Feet
 
Native To:
Illinois
Indiana
Iowa
Michigan
Missouri
Ohio
Wisconsin
 
USDA Hardiness Zone
3 - 9 
 
Bloom Color
Lavender
White
 
 
Bloom Season
June - September
 
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 moist prairies and wet woods. This plant can spread aggressively to form colonies. Flowers can be pushed to the right or left and they will stay in place, leading o the name obedient plant.