Boneset (Eupatorium japonicum) Profile

Written by Maggie

Oct 13 2021

Boneset (Eupatorium japonicum) Profile

Boneset (Eupatorium japonicum) is a variety of different names, namely, Boneset, American boneset, feverwort, thoroughwort. Boneset is a perennial herb, 0.3 ~ 1.2m high. Underground stems are traverse, apex often puffed into a spindle-like fleshy tuber. The stem is square, often purplish red, along the edges and nodes densely white. 

Boneset (Eupatorium japonicum) is a perennial herb with erect stems and distally branched stems. The inflorescence of the head forms a compact corydium and the involucre is camphorate with five white flowers. Boneset contains essential oils and coumarins. The whole herbal medicine use, has the effect of diuretic blood, can treat influenza.

Boneset picture


Boneset (Eupatorium japonicum) info

Botanical Name Eupatorium japonicum
Common Names Boneset, American boneset, feverwort, thoroughwort
Plant Type Herbaceous perennial
Sun Full sun, partial shade
Hardiness Zones 3 to 8
Flower color White
Native Area North America
Mature size Maximum 4 to 6 feet tall and 3 to 4 feet wide, but typically 3 feet tall and 1 foot wide in the wild

Boneset (Eupatorium japonicum) Characteristics

Boneset (Eupatorium japonicum) is a cylindrical, square-shaped stalk with few branches and shallow grooves on all sides. It is 50 ~ 100cm long and 0.2 ~ 0.6cm in diameter.

Boneset (Eupatorium japonicum) is a yellow-green or greenish surface with distinct purplish nodes and white hairs; The quality is crisp, the section is yellow and white, the pulp is hollow. Leaves are opposite, short stipitate; Leaf blade is more wrinkled, flattened and lanceolate or oblong, 5 ~ 10cm long; Upper surface is blackish green, lower surface grayish-green, densely glandular spots, both surfaces have short hairs; Apex is acute, margin serrate. Flowers are fascicled leaf axils into a wheel, corolla much off, bracts and calyx persistent, yellowish-brown. 

Boneset (Eupatorium japonicum) Habits

Boneset grows on hillsides, in marshes and near water; There are cultivated. It is widely distributed in all parts of China (except Xinjiang and Tibet).

Boneset (Eupatorium japonicum) likes warm and humid climates. It grows well in high temperature and rainy season in June and July. Boneset has cold resistance, not afraid of waterlogging, like fertilizer, infertile soil areas to grow to flourish, choose the sun, deep soil, rich in humus loam or sandy loam cultivation is appropriate; It should not be cultivated in dry, barren and non-irrigated conditions.

Boneset (Eupatorium japonicum) Propagation

Boneset (Eupatorium japonicum) propagates with roots or seeds. Rhizome reproduction is the main production.

Rhizome propagation

When digging rhizome, select white, strong, young rhizome, cut into 10-15cm long sections, according to row spacing 30-45cm, 15-20cm plant spacing, immediately planted, each hole 2-3 sections, covered with soil thickness of 5cm, slightly suppressed after watering. Those planted in winter sprouted in the following spring and sprouted about 10 days after spring sowing. The seed amount per 1hm2 is 750-900kg.

Seed propagation

After the seeds of Boneset (Eupatorium japonicum) were harvested, they were drilled between March and April with row spacing of 30cm. After sowing, they were covered with soil and slightly suppressed. Seed germination rate of 50%-60%.The soil temperature is about 17-20℃, and there is enough temperature for sowing, and the seedlings will emerge in about 10 days. The sowing amount per 1hm2 is 3.75kg.

Boneset (Eupatorium japonicum) Care


Boneset tolerates partial shade. But it will flower higher if you provide it full sun.


Tolerant of a vary of soil conditions, boneset can be grown in both a sandy soil or a clayey soil. However, due to the fact the plant prefers its soil to be continuously moist, be positive to supply it greater water if you are developing it in a sandy soil. Sandy soils are like sieves: They do now not maintain water well.


Do no longer ever enable the soil of boneset to dry out completely. This is the most vital precept in caring for the plant.


Boneset performs nice in a soil with solely common fertility. Do no longer supply it too a great deal fertilizer. If you are planting it in backyard soil to which you have delivered compost in the past, you may additionally by no means want to fertilize boneset.


Varieties of boneset

Closely associated to boneset are two different species of Eupatorium:

Purple Joe Pye weed (Eupatorium purpureum)

Spotted Joe Pye weed (Eupatorium maculatum)

Both, like boneset, are native to North America and like to develop in moist ground. But both possess increased decorative fee than boneset, for two reasons:

They are taller flowers (up to 7 toes tall) and consequently exhibit up higher in the landscape.

They have crimson flower heads, alternatively than the stupid white of boneset.

But now not all gardeners develop boneset for decorative reasons. Gardeners involved in usual natural treatments may additionally develop boneset for its medicinal properties. It has been used to deal with fever, flu, and the frequent cold, amongst different ailments. In fact, the botanical title of "Eupatorium" derives from the identify of a king of a u . s . a . in the historic world (Pontus) who is supposed to have observed the medicinal homes of boneset: Mithridates VI Eupator (132 to sixty three B.C).

Toxicity of Bonese

Do no longer scan with the medicinal makes use of for boneset except you are beneath the supervision of a educated herbalist: All of the plant components of boneset are poisonous. It has been acknowledged to reason diarrhea and dermatitis, for example.

Boneset (Eupatorium japonicum) Disease

Disease has rust: available rust sodium 200-300 times liquid, add a little synthetic washing powder, spray prevention and control. 

Insects have inchworm: 6, July, available 90% trichlorfon 800-1000 times liquid spray. 

Perilla wild-borer: larvae damage the leaves and appear in Beijing from July to September. Control methods: clearing the garden, treating the residual plants, plowing the land after harvest to reduce the source of overwintering insects.

Boneset (Eupatorium japonicum) Distribution

Boneset (Eupatorium Japonicum) is distributed in Heilongjiang, Jilin, Liaoning, Anhui, Jiangsu, Zhejiang, Hubei, Sichuan and Shanxi provinces.

Boneset (Eupatorium japonicum) Benefits

Boneset (Eupatorium japonicum) stems and leaves are used as medicine to disperse the silt with blood and suppress the influenza virus.

Boneset contains essential oil and coumarin, etc.