How much sun does Mohr's Thoroughwort need?

Mohr's Thoroughwort grows best in part sun conditions.

When does Mohr's Thoroughwort bloom?

Mohr's Thoroughwort blooms in July, August, September, and October.

Where is Mohr's Thoroughwort native?

Mohr's Thoroughwort (Eupatorium mohrii) is native to AL, FL, GA, LA and 5 more states, per the World Checklist of Vascular Plants (Kew).

What pollinators does Mohr's Thoroughwort attract?

Mohr's Thoroughwort draws bees, butterflies, and moths.

Is Mohr's Thoroughwort HOA-friendly?

Mohr's Thoroughwort is generally an HOA-friendly choice in the right placement, with low maintenance.

Mohr's Thoroughwort

Name: Pollinator Patch
Author: Pollinator Patch

Eupatorium mohrii

Last reviewed: August 2026

Toxicity unknown

Mohr's Thoroughwort (Eupatorium mohrii) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

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

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 445 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Browse plants for this ecoregion

Piedmont Middle Atlantic Coastal Plain Southeastern Plains Southern Coastal Plain Southern Florida Coastal Plain

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.

Common questions

How much sun does Mohr's Thoroughwort need?: Mohr's Thoroughwort grows best in part sun conditions.
When does Mohr's Thoroughwort bloom?: Mohr's Thoroughwort blooms in July, August, September, and October.
Where is Mohr's Thoroughwort native?: Mohr's Thoroughwort (Eupatorium mohrii) is native to AL, FL, GA, LA and 5 more states, per the World Checklist of Vascular Plants (Kew).
What pollinators does Mohr's Thoroughwort attract?: Mohr's Thoroughwort draws bees, butterflies, and moths.
Is Mohr's Thoroughwort HOA-friendly?: Mohr's Thoroughwort is generally an HOA-friendly choice in the right placement, with low maintenance.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Mohr's Thoroughwort? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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