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Southern Watergrass

Luziola fluitans

Last reviewed: June 2026

Southern Watergrass (Luziola fluitans)
Photo: (c) Annika Lindqvist, some rights reserved (CC BY), uploaded by Annika Lindqvist

Light

full sun

Water

high

Size

12"–36" H × 12"–36" W

Bloom

N/A

Native to

AL, AR, FL, GA and 5 more states

Southern watergrass is an aquatic annual grass that thrives in wet conditions like pond edges, marshes, and rain gardens. It grows in clumps and requires consistently moist to saturated soil to survive.

In an HOA neighborhood

Southern Watergrass 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 wetland conditions unsuitable for typical landscaping
  • Annual lifespan creates gaps in planting
  • Wild, informal appearance doesn't match suburban aesthetics

Wildlife value

Provides habitat and food for waterfowl and marsh birds. Seeds support various wetland wildlife species.

Common questions

How much sun does Southern Watergrass need?
Southern Watergrass grows best in full sun conditions.
Where is Southern Watergrass native?
Southern Watergrass (Luziola fluitans) is native to AL, AR, FL, GA and 5 more states, per the USDA PLANTS Database and regional native plant society lists.
Is Southern Watergrass HOA-friendly?
Southern Watergrass takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

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 Southern Watergrass? 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