Boneset - Eupatorium perfoliatum

Phonetic:  yoo-puh-TOR-ee-um per-foh-lee-AH-tum

Boneset, a medicinal perennial, is clump-forming with small white flowers. It is among the late-flowering native plants that make our fields so colorful towards the end of summer and early fall. It grows in open fields along with the goldenrods, the asters, and ironweed. In the wild it is often seen in the moister soils alongside a stream or pond or ditch but is not fussy about the type of soil. It tolerates some shade.

• Hardiness:  4-8
• Native Region: BONAP Map
• BONAP Map Key Color Guide: Map Color Key
• Sun Exposure:  Full sun, partial shade
• Flower Color:  White
• Bloom Time:  August, September
• Soil Type:  Medium, Moist, Wet
• Mature Plant Size:  2'-3'H, 2'W
• Plant Spacing: 2'
• Host Plant: Lined Ruby Tiger Moth, Three Lined Flower Moth, Clymene Moth, Boneset Borer, and Red Humped Caterpillar Moth  
• Attracts:  Bees, butterflies, birds
• Advantages:  Deer resistant, fragrant
• Landscape Uses:  Butterfly and cottage gardens, borders, wetlands
• Companion Plants: Joe Pye Weed, New York Aster, Cardinal Flower, Rose Milkweed, Native Bergamot, Indian Grass, Sneezeweed
• Deer Resistant

Boneset - Eupatorium perfoliatum

How Boneset Grows and How to Care for It

Once established, boneset becomes a great addition to native landscapes, returning each year with fresh growth and clusters of white blooms that attract a wide variety of pollinators. Like many native perennials, it needs time to develop a strong root system before reaching its full potential.

To help your plant thrive, keep these care tips in mind:

• Water regularly during the first growing season for deep root development.
• Add a layer of natural mulch to help retain soil moisture and reduce weed competition.
• Remove old stems in late winter or early spring before new shoots emerge to make room for fresh growth.
• Avoid over-fertilizing, as excessive nutrients can lead to weaker stems and reduced flowering.
• Divide mature clumps every several years if they become crowded or if you would like to expand your planting.
• Pair native perennials with similar moisture needs to create a healthy, low-maintenance garden community.

Shop for boneset from Bagley Pond Perennials, and for more support, contact our team today.

Frequently Asked Questions

Can boneset grow in containers?

While it is possible, boneset grows best in the ground because its extensive root system works well in consistent soil moisture, and if there's enough room for it to develop. Large containers may work for a few seasons, but the plants in them may need more frequent watering than garden beds.

Should I divide mature plants?

Division is usually only needed every few years if the center of the clump becomes less vigorous or you want additional plants. Dividing in early spring or early fall gives the roots time to establish before periods of extreme weather.

Will boneset reseed around the garden?

It can produce seedlings under favorable conditions, but they are generally easy to identify and manage. If you prefer a cleaner appearance, simply remove unwanted seedlings or trim seed heads before they fully mature.

Can boneset be planted near ponds or rain gardens?

Yes. Boneset naturally grows in moist meadows, such as streams and near ponds, making it an excellent choice for rain gardens or other areas that are always damp. It tolerates occasional flooding better than many garden perennials while still performing well in average garden soil with enough moisture.