Canada St. John's Wort
Hypericum canadense
Last reviewed: August 2026

Toxicity unknown
Canada St. John's Wort (Hypericum canadense) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
part sun
Water
medium
Size
4"–12" H × 2"–6" W
Bloom
Jun, Jul, Aug
Native to
AL, CT, DE, FL and 24 more states
Pollinators
bees, beetles
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 445 programs across 44 states, each with a link to the provider and the date we last checked it.
Find rebates in your areaBrowse plants for this ecoregion
This delicate native wildflower produces small yellow flowers throughout summer months. It forms low, compact clumps that work well as groundcover in partially shaded areas with average moisture.
In an HOA neighborhood
Canada St. John's Wort 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.
- Very small stature makes it appear weedy
- Informal wildflower appearance doesn't suit formal landscapes
- May be overlooked or mistaken for a weed by maintenance crews
Wildlife value
The bright yellow blooms attract native bees and beetles during the summer flowering period. Its compact size makes it useful for supporting pollinators in smaller garden spaces.
Common questions
- How much sun does Canada St. John's Wort need?
- Canada St. John's Wort grows best in part sun conditions.
- When does Canada St. John's Wort bloom?
- Canada St. John's Wort blooms in June, July, and August.
- Where is Canada St. John's Wort native?
- Canada St. John's Wort (Hypericum canadense) is native to AL, CT, DE, FL and 24 more states, per the World Checklist of Vascular Plants (Kew).
- What pollinators does Canada St. John's Wort attract?
- Canada St. John's Wort draws bees and beetles.
- Is Canada St. John's Wort HOA-friendly?
- Canada St. John's Wort takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Canada St. John's Wort? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz