Coastal Water-hyssop
Bacopa monnieri
In the Carolinas and Georgia, found in freshwater tidal marshes, muddy shores, streams and pools. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you
Native to Louisiana (estimated). How scores work Is it native here?
Profile 76%
- Light
- Full sun, Partial shade
- Soil moisture
- Usually moist
At a glance
- Life cycle
- Perennial
- Leaves
- Evergreen
Not yet recorded · Height · Spread · Bloom
Height and bloom: NC species account not read yet.
Spread: no source found yet.
This plant is missing most of its facts, so Quercus is looking them up in old botany books.
Recorded in 37 Louisiana parishes.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Marshes along tidal rivers where the water is fresh but rises and falls with the tide.
Streams, rivers and their banks
Flowing water and its banks, bars and rocky shoals.
Who uses this plant?
4CaterpillarsGenus host records with ranges including LA
Genus host records with ranges including LA · Bacopa
- Elophila obliteralisWaterlily Leafcutter Moth
- Parapoynx allionealisWatermilfoil Leafcutter, Bladderwort Casemaker
- Parapoynx maculalisPolymorphic Pondweed Moth
- Parapoynx obscuralisObscure Pondweed Moth
4BeesSoutheastern regional records
Southeastern regional records · Bacopa
Individual names are not available yet.
Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
0Specialist beesPollen specialists
—BirdsRecorded genus food-resource interactions; not a state feeding claimNo records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects
Plant details
- Family
- Plantaginaceae
- Hardiness
- Zones 8a–11b
- Soil pH
- Acidic to alkaline
- Flower color
- Pink or white
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Flower color · “Pink or white” · NC Extension Plant Toolbox (ranked first; Lady Bird Johnson Wildflower Center differs)
- Hardiness · “Zones 8a–11b” · NC Extension Plant Toolbox
- Leaves · “Evergreen” · 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 (ranked first; Lady Bird Johnson Wildflower Center differs)
- Soil · “Moist; Occasionally wet” · NC Extension Plant Toolbox (ranked first; Lady Bird Johnson Wildflower Center differs)
- Soil pH · “Acidic to alkaline” · NC Extension Plant Toolbox
Also known as
Coastal Water hyssop
Conservation status
| Louisiana rank | SNR |
|---|---|
| Global rank | G5? |
| LA status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Sources
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025)
- 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