Common Boneset

Eupatorium perfoliatum

Also known as: Chapman's Thoroughwort

Native to:
Canada, Prince Edward I., United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Asteraceae
Genus:
Eupatorium
Species:
Eupatorium perfoliatum
USDA Symbol:
EUPE3

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
150 cm
Light Requirements:
Full Sun,Part Shade,Shade
Drought Tolerance:
Low
Bloom Months:
jul,aug,sep,oct
Bloom Colors:
white

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)

Keystone Species Ranking

Caterpillar Keystone:
★★★☆☆ Butterfly & moth species supported by this genus (NWF)

Host Plant for Caterpillars

blackberry looper (Chlorochlamys chloroleucaria), Bucculatrix eupatoriella, Carmenta pyralidiformis, larch needleworm moth (Endopiza slingerlandana), Semiothisa continuata, Three-lined Flower Moth (Schinia trifascia), Holly Blue (Celastrina argiolus)

Reported Fauna Sightings

Bees: Brown-belted bumble (Bombus griseocollis), Common eastern (Bombus impatiens), Eastern Carpenter Bee (Xylocopa virginica), Red-belted bumble (Bombus rufocinctus), 🛑Rusty-patched bumble (Bombus affinis), Southern plains bumble bee (Bombus fraternus), ⚠️Western honey bee (Apis mellifera) Moths:Atteva aurea, Carmenta pyralidiformis, Hellinsia elliottii, Isabella tiger moth (Pyrrharctia isabella), Pyrausta acrionalis, Wavy-lined Emerald (Synchlora aerata), Yellow-collared Scape Moth (Cisseps fulvicollis) Butterflies:Common Buckeye (Junonia coenia), Gray Hairstreak (Strymon melinus), ⚠️Monarch butterfly (Danaus plexippus), Peck's skipper (Polites peckius), Red-banded Hairstreak (Calycopis cecrops), Viceroy butterfly (Limenitis archippus), White Admiral (Limenitis arthemis)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies, wasps, beetles, birds
Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts from rootstock following fire; benefits from periodic burns in prairie and wet meadow systems.

Soil Requirements

Soil Type:
rich, moist, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
Commonly found in wetlands and along stream banks

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Seeds require light for germination; surface sow and do not cover.

The above propagation data sourced from Claude AI

Pre-treatment: Mix the seeds with an equal amount of either perlite or vermiculite. Seal mixture into a Ziploc-style bag or a Rubbermaid-style container, 1 month of moist cold stratification in a cool dry place (refrigerator or cold garage). Cold store until planted (up to 3 years).

Establishment: Seed is collected by hand from locally native plants in the eastern central Upper Peninsula and at Washington Memorial Parkway, TRI Swamp trail. The plant blooms in the summer and fall. Seed is an achene with pappus and is harvested in the fall. The plant grows in full sun and is found in marshes, swales, wet fields, fens, conifer swamps, thickets, low clearings, river and stream banks. It can reach a height of up to 5' with white flowers.

Source: npn.rngr.net

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months. Requires light / surface sow (fine seed).

Source: Ontario Rock Garden & Hardy Plant Society