Chinese Thoroughwax, Chai Hu (English transliteration), Thorowax, Hare's Ear
Bupleurum chinense
🌿 Morphology
🌞 Growing conditions
🌍 Origin and family
🌾 Uses
Warning: Despite the care taken in writing this sheet, it is essential to cross-reference sources before using or consuming any plant. When in doubt, consult a qualified professional
Permaculture uses
While the leaves are sometimes considered edible when young and cooked, Bupleurum chinense is primarily used medicinally. The root is a key ingredient in traditional Chinese medicine (TCM), known as Chai Hu. It's used for treating liver imbalances, reducing fever, and managing inflammation. It can be incorporated into a medicinal herb garden. No notable culinary subspecies or cultivars are typically mentioned.
Permapeople description
Used in traditional Chinese medicine
Botanical description
Bupleurum chinense is a perennial herbaceous plant in the Apiaceae (carrot) family. It typically grows to a height of 30-70 cm. The stems are erect and branched, with alternate, lanceolate to linear leaves that are sessile and have a bluish-green hue. The flowers are small, yellow, and arranged in compound umbels. The fruit is a schizocarp, splitting into two mericarps at maturity. It thrives in dry, sunny locations with well-drained soil. Its root is slender and yellow-brown.
Companion planting
Specific companion planting information for Bupleurum chinense is limited. However, generally, it's beneficial to avoid planting near plants susceptible to similar pests or diseases that might affect the Apiaceae family. It can potentially benefit from being grown near plants that attract beneficial insects, supporting overall garden health.
Propagation methods
Propagation can be achieved through seeds. Sow seeds in spring or autumn in a well-drained seedbed. Division of mature plants is also possible, typically done in early spring or autumn. Root cuttings may also be successful, though less common.
History and traditions
Chai Hu has a long history of use in traditional Chinese medicine, dating back centuries. It is one of the most important herbs in TCM formulas, primarily used for its liver-harmonizing, fever-reducing, and inflammation-modulating properties. It is traditionally believed to regulate Qi (vital energy) and alleviate stagnation. Historical texts detail its use for a wide range of ailments.
Usage calendar
Flowering typically occurs in summer (June-August). Seeds are harvested in autumn (September-October) when mature. Planting is best done in spring or autumn. Pruning is generally not required, but deadheading spent flower umbels can improve appearance and prevent self-seeding.