Water-parsley
Sium suave
Last reviewed: June 2026
Light
part sun
Water
high
Size
12"–48" H × 8"–24" W
Bloom
Jun, Jul, Aug
Native to
AL, AR, AZ, CA and 43 more states
Pollinators
bees, beetles, flies
Browse plants for this ecoregion
Water-parsley is a native wetland perennial that thrives in consistently moist to wet soils and partial sun conditions. It produces small white flower clusters during summer months and grows 1-4 feet tall with a somewhat spreading habit. This plant requires constant moisture and is best suited for rain gardens, pond edges, or areas with poor drainage.
In an HOA neighborhood
Water-parsley takes more care to keep looking intentional in a front yard. Maintenance level: moderate. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Looks wild and informal in appearance
- Requires consistently wet conditions that may appear unkempt
- Can become quite tall and sprawling
Wildlife value
The summer blooms attract various pollinators including native bees, beetles, and flies. As a native wetland species, it provides important habitat and food sources for moisture-loving insects.
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 Water-parsley fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.