Knotweed Root Powder


Botanical Name: Polygonum cuspidatum

Common Name:

  • English: Japanese Knotweed
  • Also, known as: Bambou Japonais, Bambou Mexicain, Extrait de Hu Zhang, Fallopia japonica, Fleece Flower, Giant Knotweed, He Shou Wu, Hojang-geun, Huzhang, Hu Zhang Extract, Hu Zhang Root, Itadori, Itadori-Kon, Japanese Bamboo, Japanese Knotweed, Japanese Knotwood, Mexican Bamboo, PCWE, Persicaire Cuspidée, Polygoni Multiflora, Polygonum cuspidatum, Racine de Hu Zhang, Renouée à Feuilles Pointues, Renouée du Japon, Renouée Japonaise, Reynoutria japonica, Tiger Cane, 虎杖 

Origin: Asia 

Harvested: Wild

Part used: Root

General Information:

Hu Zhang (Polygonum cuspidatum) is the Chinese name for a plant also known as Japanese knotweed and Mexican bamboo. The dried root is used medicinally and is listed in the Pharmacopoeia of the People’s Republic of China. Hu Zhang is also used as folk medicine in Japan and Korea.

How to use:

Hot Infusion:

The basic method for dried herbs and flower is, take 2-3 tablespoons of dried herb in a cup or teapot. Pour hot water over it and cover it with lid for 10-30 minutes. Hot water is needed to draw out the antioxidants, enzymes, vitamins, flavonoids, and volatile oils from the botanicals. Strain and squeeze out as much as liquid as possible and enjoy!


  • You can sweeten your herbal tea with a bit of honey, natural fruit juice, stevia leaves powder and or licorice root powder.
  • You can make ice cubes or pops by freezing tea in ice trays or pop molds.


You should consult with a qualified healthcare practitioner before using any herbal products, particularly if you are pregnant, nursing, or on any medications.

All information on this website is for educational purpose ONLY

This information has not been evaluated by Health Canada.

This information is not intended to diagnose, treat, cure, or prevent any disease.

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