Blunt-leaved Pondweed
Potamogeton obtusifolius
Last reviewed: June 2026
Light
full sun
Water
high
Size
12"–48" H
Bloom
Jun, Jul, Aug, Sep
Native to
CT, ID, MA, MD and 13 more states
Blunt-leaved pondweed is an aquatic perennial that grows submerged in ponds, lakes, and slow-moving streams. This native water plant produces small flowers on spikes that emerge above the water surface during summer months. It requires permanent standing water to survive and cannot be grown in typical garden soil.
In an HOA neighborhood
Blunt-leaved Pondweed 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.
- Requires permanent water feature which most HOAs restrict
- Only suitable for ponds or water gardens
- Cannot survive in standard landscaping conditions
Wildlife value
This aquatic plant provides important habitat for waterfowl, fish, and aquatic invertebrates. The seeds are eaten by ducks and other water birds, while the submerged foliage offers shelter for fish and amphibians.
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 Blunt-leaved Pondweed fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.