Northern St. Johnswort
Hypericum boreale
Last reviewed: June 2026
Light
part sun
Water
medium
Size
6"–16" H × 4"–12" W
Bloom
Jun, Jul, Aug
Native to
CT, DE, IA, IL and 17 more states
Pollinators
bees, beetles, flies
Northern St. Johnswort is a compact native wildflower that produces cheerful yellow blooms throughout the summer months. This low-growing perennial forms neat clumps with small oval leaves and stays well-behaved in the garden. It thrives in partial sun conditions with average moisture and provides reliable color from June through August.
In an HOA neighborhood
Northern St. Johnswort is an HOA-friendly choice. Maintenance level: low. Tidiness: 2 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
Wildlife value
The bright yellow flowers attract various beneficial insects including native bees, beetles, and flies during its long blooming period. This native plant supports local pollinator populations while requiring minimal care once established.
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 Northern St. Johnswort fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.