Toxic Plant Known to be toxic - Toxic to mammals if ingested. Boneset contains pyrrolizidine alkaloids that can cause serious liver damage when consumed. It should not be used as a home remedy or herbal tea, and ingestion by people, pets, or livestock should be avoided.
Image of Eupatorium perfoliatum
Source: Donna Bos

Plant Names

image of Flowering plant
Eupatorium perfoliatum
Common Boneset
Eupatoire perfoliée

Synonyms

perfoliate thoroughwort

Plant Characteristics

Bloom Colour: White Bloom Period: Jul - Sep
Max Height: 4.0 feet
Max Width: 2.0 feet (spreads by rhizome)
Light Condition:
Full sun More than 6 hours of direct sun a day
Part shade More than 2 or 3 hours but less than 6 hours of direct sun a day
Soil conditions:
Moisture medium Tolerates medium soil condition
Lifespan: Perennial plants that will come back year after year
Gardener Experience:
does not spread Does not spread uncontrollably
plant spread by rhizome Spreads by rhizome
plant self seeding Self-seeding
Landscape Uses:
wetland garden Suitable for wetland garden
rain garden Suitable for rain gardens
shoreline_rehab Suitable for shoreline rehabilitation
school garden Suitable for school gardens
Ecological Benefits:
butterfly host Butterfly host
Tolerates:
Salt Tolerant Tolerates salt conditions
Deer Resistant Deer resistant
Rabbit Resistant Rabbit resistant
Limestone Tolerant Tolerates limestone conditions
Juglone Tolerant Tolerates juglone conditions
Special Features and Considerations:

Seed and plant distribution status

No seeds available for this plant.
We currently accept seeds for this plant

Fun Facts

Common Boneset is associated with moist meadows, wetlands, stream edges, and open woodlands. Its distinctive leaves appear to clasp the stem, giving rise to the name “boneset.” Clusters of small white flowers appear at the top of the plant from late summer into fall. You can divide established plants in spring if they become too large.

Plant Location

Native to Ottawa region: Yes

Distribution according to VASCAN

Distribution: Eupatorium perfoliatum
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent

Thrives in Ecozones

  • Atlantic Maritime
  • Boreal Plains
  • Prairies
  • Boreal Shield
  • Mixed Wood Plains

Ecological Benefits

Butterflies Supported by Eupatorium perfoliatum

Specialized Bees Supported by Eupatorium perfoliatum

No bee data available for this plant.

Complementary Plants

Substitute For Non-Native Plants

  • Thalictrum (Non-Native Meadow Rue)
  • Symphiotrichum (Non-Native Aster)

Sowing Information

Download Seed Envelope Labels (PDF)
  • Sowing depth: Surface sow
  • Sow by March
  • Stratification duration: 30 days
  • Self-seeding

Harvesting and Seed Sharing

  • Harvest start month: September
  • Harvesting indicator:
    • Seeds have become fluffy and can be easily removed by shaking on gently pulling off from stem
  • Harvesting:
    • Shake seed head in paper bag
  • Seed viability test:
    • No test needed before donating
  • Packaging measure: 1 rounded 1/8 teaspoon
  • Seed storage:
    • Air dry in paper bag or open container, for a few days until crisp
    • Shake seeds to move them once in a while to prevent molding
  • Cultivar: No, you can donate without knowing the source as there are only straight species
  • No harvesting video available at this time.

Toxicity Notes

Toxic to mammals if ingested. Boneset contains pyrrolizidine alkaloids that can cause serious liver damage when consumed. It should not be used as a home remedy or herbal tea, and ingestion by people, pets, or livestock should be avoided.