Native Plant Trust

Hypericum kalmianum

Kalm's St. John's wort

This dense, evergreen shrub is an absolute metropolis for pollinators once it flowers. Great as a container plant or in a sunny garden setting, this powerful little shrub makes a strong visual impression from moist open woods to wet lakesides.

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Height: 2-3 ft
Spread: 2-3 ft
Hardiness Zone: 4-8


Bloom Color: Yellow

Characteristics & Attributes

Cultivation Status
Species
Exposure
Sun
Soil Moisture
Average
Dry
Ecoregion
(59) Northeastern Coastal Zone
(83) Eastern Great Lakes Lowlands
(84) Atlantic Coastal Pine Barrens
Ornamental Interest
Summer Bloom
Attracts Wildlife
Attracts Bees
Tolerance
Drought Tolerant
Additional Attributes
Low Maintenance
Landscape Use
Massing
Rock garden
Hedge/screening


North American Distribution


Kalm's St. John's wort - Hypericum kalmianum from Native Plant Trust