Large St. Johnswort
Hypericum majus
Last reviewed: June 2026
Light
full sun
Water
medium
Size
4"–12" H × 2"–6" W
Bloom
Jun, Jul, Aug, Sep
Native to
CO, CT, DE, IA and 24 more states
Pollinators
bees, beetles
Large St. Johnswort is a low-growing annual wildflower that produces small yellow blooms from summer through early fall. This compact native forb stays under a foot tall and spreads modestly, making it suitable for naturalized areas and wildlife gardens.
In an HOA neighborhood
Large St. Johnswort takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Annual growth means gaps and bare spots
- Wild appearance doesn't fit formal landscaping
- May be perceived as weedy by neighbors
Wildlife value
The bright yellow flowers attract native bees and beetles during its long blooming period from June through September.
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 Large St. Johnswort fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.