Scouler's St. Johnswort
Hypericum scouleri
Last reviewed: June 2026
Light
full sun
Water
low
Size
8"–24" H × 8"–16" W
Bloom
Jun, Jul, Aug
Native to
AZ, CA, CO, ID and 7 more states
Pollinators
bees, beetles
Browse plants for this ecoregion
Scouler's St. Johnswort is a compact native perennial that produces bright yellow flowers from June through August. This low-growing plant forms neat clumps and requires minimal water once established, making it an excellent choice for drought-tolerant gardens.
In an HOA neighborhood
Scouler's St. Johnswort is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
- May appear sparse in winter when dormant
Wildlife value
The cheerful yellow blooms attract native bees and beneficial beetles during the summer months. This plant provides valuable nectar sources when many other native flowers have finished blooming.
Common questions
- How much sun does Scouler's St. Johnswort need?
- Scouler's St. Johnswort grows best in full sun conditions.
- When does Scouler's St. Johnswort bloom?
- Scouler's St. Johnswort blooms in June, July, and August.
- Where is Scouler's St. Johnswort native?
- Scouler's St. Johnswort (Hypericum scouleri) is native to AZ, CA, CO, ID and 7 more states, per the USDA PLANTS Database and regional native plant society lists.
- What pollinators does Scouler's St. Johnswort attract?
- Scouler's St. Johnswort draws bees and beetles.
- Is Scouler's St. Johnswort HOA-friendly?
- Scouler's St. Johnswort is generally an HOA-friendly choice in the right placement, with low maintenance.
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.
Ready to grow Scouler's St. Johnswort? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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