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Collinsonia tuberosa
    (kol-in-SOH-nee-uh    too-ber-OH-suh)
Deepwoods Horsebalm; Stoneroot, taken on October 11, 2007.
Photo Credit: Mike Strickland

Collinsonia tuberosa can do well in the home landscape.

Collinsonia tuberosa is found in moist woodlands in partial shade. It grows 12 to 36 inches tall, with large, oval, coarsely toothed leaves to the top of the stalk, and long, branched, terminal spikes of small, white-cream flowers with purplish streaks. As a member of the mint family, the leaves will have a minty fragrance when crushed.

Easily grown in average, medium, well-drained soil in part shade, it does well in sandy or clay soils and will tolerate somewhat dry conditions.

Native Americans drank a tea made from the knotted, tough roots and the leaves of Collinsonia tuberosa as a general tonic and as a treatment for bladder and kidney stones.

Common uses for this plant include: Best grown in woodland, native plant or wildflower gardens.

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