Water Hyssop
Bacopa monnieri
Last reviewed: June 2026
Bacopa monnieri is a low-growing aquatic perennial native to Texas that produces small white flowers from March through November. This water hyssop thrives in wet soils and full sun conditions.

Light
full sun
Water
high
Size
6"–12" H × 12"–36" W
Bloom
Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
Native to
TX
Pollinators
butterflies
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 411 programs across 44 states, each with a link to the provider and the date we last checked it.
Find rebates in your areaBrowse plants for this ecoregion
Water Hyssop is a low-growing native perennial that forms a dense mat of small, succulent-like leaves. It produces tiny white flowers nearly year-round and thrives in consistently moist conditions, making it ideal for rain gardens or pond edges.
Growing Water Hyssop
Grow Water Hyssop in full sun and high water. Mature plants reach 6 to 12 inches tall and spread 12 to 36 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Water Hyssop is an HOA-friendly choice. Maintenance level: low. Tidiness: 2 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
Wildlife value
This plant attracts butterflies with its long blooming period from spring through fall. The dense mat provides shelter for beneficial insects and small wildlife.
Common questions
- When does Bacopa monnieri bloom?
- Bacopa monnieri blooms from March through November, producing small white flowers throughout most of the growing season.
- What growing conditions does water hyssop prefer?
- Water hyssop prefers consistently wet to moist soils and full sun to partial sun exposure. It naturally grows in marshy areas, pond edges, and other aquatic environments.
- What pollinators visit Bacopa monnieri?
- Butterflies are among the primary pollinators that visit the small white flowers of Bacopa monnieri.
- Where is Bacopa monnieri native?
- Bacopa monnieri is native to Texas and other southeastern regions of the United States, where it grows naturally in wetland habitats.
- Is Water Hyssop HOA-friendly?
- Water Hyssop is generally an HOA-friendly choice in the right placement, with low maintenance.
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.
Ready to grow Water Hyssop? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz