Late boneset (Eupatorium serotinum)

Late boneset

Also known as: Fall boneset, Late eupatorium

The late boneset is a large-sized weed originates in the eastern part of the United States. It blooms in fall and produces a large amount of tiny white flower heads. It is pollinated by insects instead of wind as many Eupatorium species did, which makes it relatively less aggressive.

Scientific classification

Species

Late boneset (Eupatorium serotinum)

Asters bellflowers fanflowers and allies

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Weeds

Weed or not

Perennial

Lifespan

Herb

Plant Type

Summer, Fall

Bloom Time

Fall

Harvest Time

1 m to 2 m

Plant Height

45 cm to 75 cm

Spread

Green

Leaf Color

2.5 cm

Flower Size

Black

Fruit Color

White

Flower Color

Green

Stem Color

Winter dormancy

Dormancy

Deciduous

Leaf type

10 - 35 ℃

Ideal Temperature

Images of Late boneset

Distribution of Late boneset

Distribution Map

Late boneset is found naturally in wetlands and damp prairies in the central and eastern parts of the US and Mexico and it also occurs as an introduced species in Australia.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Old fields, waste ground, railroad embankments, open moist woods in bottomlands

Hemisphere Trend Curve

Northern

Sorthern

Culture

Symbolism

Healing, Mending Regeneration, gratitude

Interesting Facts

Plants offer many benefits not only to the gardener but also to the surrounding flora and fauna. The late boneset is a pollinator magnet. Attracting dozens of different insects, this late season bloomer provides much needed nectar to a host of bugs that not only feed from this plant but visit other plants in the garden ensuring proper pollination.

Name Story

Lateflowering thoroughwort: Native Americans and early settlers used the plant for medicinal purposes, hence the name thoroughwort is given for this reason. It also has the intrinsic value of being native to the land. Moreover, this flower is part of an ecosystem special to North America for millennia.

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Toxicity

Although usually harmless to humans, those allergic to late boneset can experience mild symptoms such as sneezing, coughing, and chest tightness due to airborne pollen, particularly in fall when flowers bloom. Late boneset is commonly found in meadows and fields, making it hard for allergic individuals to avoid.

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Care Guide for Late boneset

Every week

Water

Partial sun

Sunlight

10 - 35 ℃

Ideal Temperature

Water: Late boneset, native to North America, prefers consistent moisture and can tolerate brief dry spells. It requires weekly watering, reflecting its natural habitat. As an herbaceous perennial, late boneset goes dormant in winter, significantly reducing water needs, highlighting its adaptability to seasonal conditions.

Fertilize: Late boneset flourishes with balanced fertilizers like 10-10-10 in early spring and midsummer, at 1/2 pound per 100 square feet. Benefits include increased vigor and bloom, but avoid over-fertilization. In fall, reduce feeding to aid dormancy, adjusting applications based on experience and soil conditions.

Pruning: Native to North America, late boneset features white blooms and vigorous growth. Prune in early to late spring by cutting last year's stems above the base to encourage new shoots. Regular thinning enhances air circulation, while removing dead parts promotes vitality and boosts flower production.

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Images of Late boneset

Distribution of Late boneset

Culture

Toxicity

Care Guide for Late boneset

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