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Eupatorium serotinum

lateflowering thoroughwort add to wishlist

Plant types and subtypes: Perennials

Light Requirements: sun, part-sun, part-shade

Water Use: medium

Soil Moisture: moist

Soil Description: acid, rich, average, loam, clay, sand

Height: 3'-6'

Bloom Time: August, September, October

Bloom Color: white

Leaf Color: green

Hardiness Zone: 4, 5, 6, 7, 8, 9, 10

Additional Tags: attracts bees, attracts birds, attracts butterflies, clumping, colonizing, cottage garden plant, cut flowers, naturalizing

Eupatorium serotinum (lateflowering thoroughwort)
  • Eupatorium serotinum (lateflowering thoroughwort)
  • Eupatorium serotinum (lateflowering thoroughwort)
  • Eupatorium serotinum (lateflowering thoroughwort)

Pricing & Availability

Description

Eupatorium serotinum

Also known as:

lateflowering thoroughwort

,

white boneset

,

late boneset

,

late-flowering boneset

Scientific Synonyms:

Description

Eupatorium serotinum is a large, clumping, perennial wildflower, closely related to Joe-Pye-weeds. It can grow up to 6' tall. Single, hairy, erect stems emerge from the base. The lance-shaped leaves are opposite, coarsely serrated, and up to 7" long. The tall stems divide terminally to bear large, fluffy, flat-topped clusters of small white flowers. These give way to small seeds with hair-like bristles that are easily dispersed by the wind.

Cultivation

Easy to grow under typical garden conditions. The preference is moist soil rich in organic matter, in full sun to partial shade. The amount of soil moisture, as well as the sun exposure, will greatly affect the height of the plant. This species is not aggressive. It may spread by seed, and vegetatively by is fibrous rhizomatous root system. The blooming period last about a month, during late summer to mid-fall. Zones 4-10

Propagation

Propagate by clump division in late spring, or by seed.

Additional Notes

Eupatorium serotinum is very similar in appearance to Eupatorium perfoliatum, but can be easily identified by the difference in foliage: the leaves of the former are attached to the stems by petioles (short, 1" long stems), whereas the leaves of the latter wrap around the stems.

Native Range & Classification

Recorded County Distribution: USDA data

Native Range:
AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, NC, NE, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, WI, WV

USDA Endangered Status:

  • Endangered: NY

Classification

Kingdom Plantae Plants
Subkingdom Tracheobionta Vascular plants
Superdivision Spermatophyta Seed plants
Division Magnoliophyta Flowering plants
Class Magnoliopsida Dicotyledons
Subclass Asteridae
Order Asterales
Family Asteraceae Aster family
Genus Eupatorium thoroughwort
Species Eupatorium serotinum lateflowering thoroughwort