Botanical name: Eupatorium fortunei
Common name: Eupatorium
Literal name translation: ornamental orchid
Family: Asteraceae, aster family
Part used in Chinese medicine: leaves and stems
Major Chinese medicine actions:
Aromatically transforms dampness, revives the Spleen,
regulates middle burner, releases the exterior in summerheat
Photo 1: Eupatorium fortunei; Tsukuba Botanical Garden; permission under GFDL
There are many species of Eupatorium grown in European and American gardens, usually known by their common name "Joe Pye Weed", "Hemp Agrimony" or "Boneset". The particular species used in Chinese medicine is native to China, Japan, and Korea, and a bit more difficult to find in Western gardens.
Growing and Propagation
In it's native habitat, the plant is found on grassy slopes and riverbeds. A perennial plant growing 24-36 inches high, it prefers sun to partial shade, with sandy, loamy soil and good drainage. It should be watered regularly during its growing period, and responds well to regular fertilization. In order to keep plants compact with an abundance of flowers, it should be cut back severely in the spring. The plant is hardy in USDA zones 4 to 7.
Pink blooms appear from late summer to early fall. Propagation is by seed or division. Seeds should be planted in a pot or cold frame in spring and transplanted to the garden in summer. Clumps of plants can be divided easily in the spring or fall and then replanted directly into the garden.
Harvesting and Preparation
For medicinal use, the dried aerial parts of the plant should consist mainly of leaves, with just a few stem pieces, and any flowers should be closed. Good quality Pei Lan is very aromatic.