Kalm’s St. John’s-wort

Compact evergreen shrub reaching 60-90 cm tall with narrow blue-green leaves and bright yellow flowers blooming July-September. Prefers well-drained, sandy or rocky soils and full sun. Drought-tolerant once established. Excellent for rocky slopes, dunes, and dry gardens. Native to Great Lakes shorelines. Provides winter interest and supports pollinators.

Plant Details