Mohr's Thoroughwort
Eupatorium mohrii
Last reviewed: June 2026
Light
part sun
Water
medium
Size
12"–36" H × 12"–24" W
Bloom
Jul, Aug, Sep, Oct
Native to
AL, FL, GA, LA and 5 more states
Pollinators
bees, butterflies, moths
Mohr's thoroughwort is a native perennial that forms neat clumps of medium-green foliage topped with clusters of small white flowers from summer through fall. This well-behaved wildflower maintains a tidy, compact growth habit and provides long-lasting seasonal interest without becoming aggressive or weedy.
In an HOA neighborhood
Mohr's Thoroughwort is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
- Dies back completely in winter
Wildlife value
The abundant white flower clusters are magnets for native bees, butterflies, and moths throughout the extended blooming period. This plant is particularly valuable for late-season pollinators when many other flowers have finished blooming.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Does Mohr's Thoroughwort fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.