Lobelia kalmii is a species of flowering plant with a distribution primarily across Canada[2] and the northern United States in temperate and boreal regions.

[5] The plant starts flowering in July and lasts into September.

[6] Its hardy nature may allow it to produce masses of scattered plants within downspout rock gardens.

[4] Native Americans used Lobelia to treat respiratory and muscle disorders, and as a purgative.

[citation needed] The species used most commonly in modern herbalism is Lobelia inflata (Indian Tobacco).