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
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
Pricing & Availability
Eupatorium serotinumAlso known as:
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.
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
Propagate by clump division in late spring, or by seed.
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
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
|Species||Eupatorium serotinum||lateflowering thoroughwort|