FNPS Plant Database

Eupatorium rotundifolium

roundleaf thoroughwort, false horehound,

PHOTOS COMING SOON!

Nomenclature

Common Name:

roundleaf thoroughwort, false horehound,

Synonym(s):

Genus species:

Eupatorium rotundifolium

Family:

Asteraceae (Compositae)

Plant Specifics

Form:

flower

Size:

3-4 ft tall 

Life Span:

Long-lived perennial

Flower Color:

white

Fruit Color:

NA

Phenology:

winter dormant

Noted For:

Showy Flowers

Landscaping

Recommended Uses:

Wildflower garden especially in sunny moist areas.

Considerations:

Said to spread easily from seed to the extent that it can become hard to control.

Availability:

Seed

Propagation:

Seed.

Light:

Full Sun, Part Sun

Moisture Tolerance:

Always Flooded------------------------------------------------Extremely Dry

Coming Soon!

Somewhat moist, no flooding ---to--- Somewhat long very dry periods

Salt Water Flooding Tolerance:

Unknown

Salt Spray/Salty Soil Tolerance:

Low/no tolerance of salty wind or direct salt spray

Soil or Other Substrate:

Sand, Clay, Loam

Soil pH:

Circumneutral

Suitable to Grow In:

USDA zones are based on the average annual extreme minimum winter temperature.



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Ecology

Wildlife:

Pollinators, Caterpillars, Birds, Mammals

Attracts many pollinators, especially important for native bees.



  • Birds and other wildlife consume fruit. 


Native Habitats:

Moist flatwoods.

Natural Range in Florida:

Comments:

Ethnobotany:

General Comments:

Citations:

Coastal Plains Institute.  2023.  http://coastalplainplants.org/wiki/index.php/Eupatorium_rotundifolium.



Hawthorn Hill Wildflowers.  http://hawthornhillwildflowers.blogspot.com/2012/11/roundleaf-thoroughwort-eupatorium.html



Miller, J.H. and K.V. Miller. Forest Plants of the Southeast and their Wildlife Uses. The University of Georgia Press, Athens, GA.



University of North Carolina Extension Service.  2023.  https://plants.ces.ncsu.edu/plants/eupatorium-rotundifolium/.



Wunderlin, R. P., B. F. Hansen, A. R. Franck, and F. B. Essig. 2021. Atlas of Florida Plants ( http://florida.plantatlas.usf.edu/ ).  Institute for Systematic Botany, University of South Florida, Tampa.

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