Plant types and subtypes: Perennials
Light Requirements: part-sun, part-shade
Water Use: medium
Soil Moisture: dry, moist
Soil Description: rich, loam, gravel/rock
Bloom Time: May, June, July
Bloom Color: red, brown
Leaf Color: green
Hardiness Zone: 3, 4, 5, 6, 7, 8
Additional Tags: attracts bees, attracts butterflies, berries, colonizing, naturalizing, shade garden plant, showy fruit, woodland plant
Pricing & Availability
Triosteum perfoliatumAlso known as:
late horse gentian
Triosteum perfoliatum is a 2' to 4' tall woodland wildflower. It is a coarse plant with multiple erect stems that bear flowers from the upper leaf axils. These flowers are clustered around the stem, reddish and tubular. They give way to showy orange berry-like drupes, each containing 3 oblong nutlets.
Feverwort is found in moist, well-drained rich woods and thickets where it will enjoy filtered light. It has a taproot, making it tolerant of dry periods, and difficult to transplant. Blooms for about a month, between May and July. Zones 3-8
Propagate from seed.
The dried seeds of Triosteum perfoliatum have been roasted and used as a coffee substitute.
Native Range & Classification
Recorded County Distribution: USDA data
AL, AR, CT, DE, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, NC, NE, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, WI, WV
USDA Endangered Status:
- Endangered: MA
- Special Concern: RI