Late-flowering Boneset, Late-flowering Thoroughwort
Eupatorium serotinum

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Eupatorium (yoo-puh-TOR-ee-um) (Info)
Species: serotinum (se-roh-TEE-num) (Info)

Category:

Perennials

Height:

36-48 in. (90-120 cm)

4-6 ft. (1.2-1.8 m)

Spacing:

24-36 in. (60-90 cm)

Hardiness:

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Danger:

Unknown - Tell us

Bloom Color:

White/Near White

Bloom Time:

Late Summer/Early Fall

Foliage:

Herbaceous

Veined

Other details:

This plant is attractive to bees, butterflies and/or birds

Flowers are fragrant

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

Unknown - Tell us

Patent Information:

Non-patented

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Collect seedhead/pod when flowers fade; allow to dry

Regional

This plant has been said to grow in the following regions:

Shirley, Arkansas

Lula, Georgia

Derby, Kansas

Barbourville, Kentucky

Benton, Kentucky

Baton Rouge, Louisiana

Baldwin, Maryland

Millersville, Maryland

Cole Camp, Missouri

Frenchtown, New Jersey

Hamilton, Ohio

Jay, Oklahoma

Bethel Park, Pennsylvania

Norristown, Pennsylvania

Memphis, Tennessee

Viola, Tennessee

Fort Worth, Texas

Great Cacapon, West Virginia

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Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

On Aug 24, 2014, cottelpg from Hamilton, OH (Zone 6a) wrote:

The Pollinator Party Palace. In the fall of 2013 a plant volunteered in my front bed that I thought was a Veronica. So I transplanted it to an appropriate place on my border. After it emerged and grew in the spring of 2014, I soon recognized that it was not a veronica. I was going to pull it, but decided to wait and took a branch to a plant identification expert at The University of Cincinnati, fully expecting him to tell me it was a noxious weed. Instead he told me it was Eupatorium serotinum, a native plant. He said it would have a pretty white bloom in the late fall and that it would attract pollinators. He urged me to keep it, so I gave it a home in my garden. I discovered its odd common name, Late Boneset. In Late August it bloomed. The bloom is attractive, but not spectacul... read more