Amphibious Bistort

Planting

Plant your Amphibious Bistort in partial shade in a location with consistently wet conditions - it thrives in shallow water features, streams, or boggy areas rather than typical garden soil. This is a wetland plant native to California, so if you're growing it outside of a water feature, plan for consistently moist to saturated conditions year-round. Plant during the growing season (spring through summer) when the plant is actively establishing.

After Planting

Water deeply and consistently to maintain wet conditions; this plant is adapted to wetland habitats and will struggle in dry soil. Expect modest growth - it's described as moderately fast-growing and reaches only a few feet tall, with yellow flowers appearing in late spring. The plant is deciduous and will die back seasonally, which is normal behavior. The #1 mistake people make is treating it like a typical perennial garden plant that needs to dry out between waterings - Amphibious Bistort is fundamentally different and needs perpetually wet conditions to thrive.

Insects

criLarge Copper Butterfly

Larval Host · Year-Round

Primary larval host plant; critical for wetland populations

higSmall Copper Butterfly

Larval Host · Year-Round

Important larval host; supports multiple generations

modMonarch butterfly

Larval Host · Year-Round

Host plant for caterpillars in wetland breeding populations

Birds

higMallard

Seeds · Year-Round

Primary seed consumption during migration and wintering; critical food source in wetland habitats

higNorthern Pintail

Seeds · Year-Round

Important staging and wintering food in California wetlands

modMute Swan

Foliage · Year-Round

Year-round aquatic macrophyte consumption

Mammals

modNutria

Foliage · Year-Round

Aquatic vegetation grazer; significant herbivory pressure