Blue Waterhyssop
Bacopa caroliniana
Last reviewed: June 2026
Light
full sun
Water
high
Size
12"–36" H × 12"–36" W
Bloom
Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
Native to
AL, FL, GA, LA and 7 more states
Pollinators
butterflies, moths
Blue Waterhyssop is a moisture-loving perennial that thrives in wet soils and boggy areas. It produces small blue flowers from spring through fall and maintains a compact, spreading form. This plant is ideal for rain gardens, pond edges, or areas with consistent moisture.
In an HOA neighborhood
Blue Waterhyssop 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
The long blooming season provides nectar for butterflies and moths from spring through late fall. Its dense growth habit also offers shelter for small wildlife.
Common questions
- How much sun does Blue Waterhyssop need?
- Blue Waterhyssop grows best in full sun conditions.
- When does Blue Waterhyssop bloom?
- Blue Waterhyssop blooms in March, April, May, June, July, August, September, October, and November.
- Where is Blue Waterhyssop native?
- Blue Waterhyssop (Bacopa caroliniana) is native to AL, FL, GA, LA and 7 more states, per the USDA PLANTS Database and regional native plant society lists.
- What pollinators does Blue Waterhyssop attract?
- Blue Waterhyssop draws butterflies and moths.
- Is Blue Waterhyssop HOA-friendly?
- Blue Waterhyssop 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.
Does Blue Waterhyssop fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.