Kalm’s St. John’s Wort

Botanical Name: Hypericum kalmianum

Height: 1 m high by 1 m wide

Season of bloom: Summer

Growing Conditions: Sun. Sweet soil, not too dry.

Wildlife benefits:

From Ottawa Valley or eastern Ontario sources: Yes. This Great Lakes indigene occurs along the limestone shores of the Ottawa River. Our seeds were collected in Bristol Township.

Remarks:

Similar species: Great St. John’s Wort

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