South American Vervain
Verbena bonariensis
In the Carolinas and Georgia, found in roadsides, disturbed areas, streambanks, sand and gravel bars, old fields. Cultivated and escaping. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you
Not native to Louisiana. How scores work Is it native here?
Profile 82%
- Height
- 2–5 feet
- Spread
- 2–3 feet
- Light
- Full sun, Partial shade
- Soil moisture
- Somewhat dry to moist
Do not plant. Listed invasive in Louisiana.
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At a glance
- Life cycle
- Perennial
- Bloom
- May to October
Not yet recorded · Leaves
Recorded in 50 Louisiana parishes.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Roadsides, fields and disturbed ground
Ground opened by people: roadsides, old fields, pastures, fencerows and lots.
Streams, rivers and their banks
Flowing water and its banks, bars and rocky shoals.
Who uses this plant?
10CaterpillarsGenus host records with ranges including LA
Genus host records with ranges including LA · Verbena
- Cenopis reticulatanaReticulated Fruitworm Moth
- Choristoneura rosaceanaOblique-Banded Leafroller Moth, Rosaceous Leaf Roller
- Crambodes talidiformisVerbena Groundling, Verbena Moth
- Endothenia hebesanaVerbena Bud Moth
- Junonia coeniaCommon Buckeye
- Megalographa bilobaBilobed Looper Moth
- Neogalea suniaLantana Stick Caterpillar, Catabena Moth
- Sparganothis sulfureanaSparganothis Fruitworm Moth, Sulfur Leafroller, False Yellow-Head
- Spilosoma virginicaVirginian Tiger Moth, Yellow Woolybear Moth, Yellow Bear
- Xenotemna pallorana
—BeesSoutheastern regional records
2Specialist beesPollen specialists
Pollen specialists · Verbena
- Calliopsis michenerella
- Calliopsis nebraskensis
8BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Verbena
- Acanthis flammeaCommon Redpoll
- Anthus rubescensAmerican Pipit
- Calcarius lapponicusLapland Longspur
- Callipepla californicaCalifornia Quail
- Colinus virginianusNorthern Bobwhite
- Columbina passerinaCommon Ground Dove
- Plectrophenax nivalisSnow Bunting
- Zenaida macrouraMourning Dove
Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening
Plant details
- Family
- Verbenaceae
- Hardiness
- Zones 7a–11b
- Soil pH
- Acidic to alkaline
- Flower color
- Purple
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “May to October” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Flower color · “Purple” · NC Extension Plant Toolbox
- Hardiness · “Zones 7a–11b” · NC Extension Plant Toolbox
- Height · “2–5 feet” · NC Extension Plant Toolbox
- Life cycle · “Perennial” · NC Extension Plant Toolbox
- Light · “Full sun (6 or more hours of direct sunlight a day); Partial shade (direct sunlight only part of the day, 2-6 hours)” · NC Extension Plant Toolbox
- primary_flower_color · “purple” · NC Extension Plant Toolbox
- Soil · “Moist; Occasionally dry” · NC Extension Plant Toolbox
- Soil pH · “Acidic to alkaline” · NC Extension Plant Toolbox
- Spread · “2–3 feet” · NC Extension Plant Toolbox
Also known as
Purple Top Vervain
Conservation status
| Louisiana rank | SNA |
|---|---|
| Global rank | GNR |
| LA status | Not verified |
| Federal status | Not verified |
Sources
- NatureServe Explorer
- USDA PLANTS
- Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition
- Louisiana occurrence source
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications