Water Whorl-grass
Catabrosa aquatica
Last reviewed: June 2026
Light
full sun
Water
high
Size
4"–16" H × 4"–12" W
Bloom
May, Jun, Jul, Aug
Native to
AR, AZ, CO, IA and 12 more states
Browse plants for this ecoregion
Water whorl-grass is a low-growing native grass that thrives in consistently moist to wet soils. This perennial forms compact clumps and produces delicate flower clusters from late spring through summer. It naturally occurs in wetlands, pond edges, and other waterlogged areas.
In an HOA neighborhood
Water Whorl-grass takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Requires consistently wet conditions that may create drainage issues
- Has a wild, unmaintained appearance typical of wetland plants
- Not suitable for typical residential landscaping conditions
Wildlife value
This grass provides habitat and food for waterfowl and supports various aquatic insects. The seeds are eaten by ducks and other water birds.
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 Water Whorl-grass fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.