Amphibious Bistort
Polygonum amphibium
Last reviewed: June 2026
Light
part shade
Water
high
Size
8"–24" H × 12"–36" W
Bloom
Jun, Jul, Aug
Native to
NE
Pollinators
bees, butterflies
Browse plants for this ecoregion
Amphibious bistort is a low-growing perennial that thrives in wet conditions and partial shade. It produces small pink flower spikes in summer and spreads by underground rhizomes to form colonies.
In an HOA neighborhood
Amphibious Bistort 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.
- Aggressive spreading habit can overtake other plants
- Requires consistently wet conditions that may create drainage concerns
- Wild, informal appearance doesn't suit formal landscaping
Wildlife value
The summer flowers attract bees and butterflies seeking nectar. Its seeds provide food for waterfowl and other birds in wetland areas.
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 Amphibious Bistort fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.