Marsh St. John'S Wort
Hypericum virginicum
Last reviewed: June 2026
Light
part sun
Water
high
Size
12"–24" H × 6"–12" W
Bloom
Jun, Jul, Aug
Native to
AL, AR, CT, DE and 26 more states
Pollinators
bees, butterflies, beetles
Hypericum virginicum, also known as Marsh St. Johnswort, is a compact native perennial that produces bright yellow flowers from June through August. This moisture-loving plant forms neat clumps in partially shaded areas and requires consistently moist to wet soil conditions.
In an HOA neighborhood
Marsh St. John'S Wort 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.
- Requires consistently wet soil which may appear boggy
- Can look sparse or untidy in typical landscape settings
- May struggle and appear stressed in conventional garden conditions
Wildlife value
The cheerful yellow blooms attract bees, butterflies, and beetles throughout the summer months. This native hypericum provides important nectar resources for pollinators in wet garden 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 Marsh St. John'S Wort fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.