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Fineleaf Pondweed

Stuckenia filiformis

Last reviewed: June 2026

Fineleaf Pondweed (Stuckenia filiformis)
Photo: (c) Matt Bowser, some rights reserved (CC BY), uploaded by Matt Bowser

The USDA PLANTS Database (opens in new tab) does not flag Fineleaf Pondweed as toxic to livestock.

Light

full sun

Water

high

Size

12"–48" H × 12"–36" W

Bloom

Jun, Jul, Aug

Native to

AZ, CA, CO, IA and 21 more states

Fineleaf pondweed is an aquatic perennial that grows submerged or floating in ponds, lakes, and slow-moving streams. It produces thin, thread-like leaves and small flower spikes that emerge above the water surface during summer months. This plant requires permanent water and is not suitable for typical garden beds or landscaping.

In an HOA neighborhood

Fineleaf Pondweed takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

  • Requires permanent water features
  • Not suitable for standard residential landscaping
  • Only appropriate for ponds or water gardens

Wildlife value

Provides important habitat and food for waterfowl, fish, and aquatic invertebrates. The submerged vegetation offers shelter for young fish and nesting material for water birds.

Common questions

How much sun does Fineleaf Pondweed need?
Fineleaf Pondweed grows best in full sun conditions.
When does Fineleaf Pondweed bloom?
Fineleaf Pondweed blooms in June, July, and August.
Where is Fineleaf Pondweed native?
Fineleaf Pondweed (Stuckenia filiformis) is native to AZ, CA, CO, IA and 21 more states, per the USDA PLANTS Database and regional native plant society lists.
Is Fineleaf Pondweed toxic to livestock?
The USDA PLANTS Database does not flag Fineleaf Pondweed as toxic to livestock.
Is Fineleaf Pondweed HOA-friendly?
Fineleaf Pondweed 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 Fineleaf Pondweed? 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