Nuherbs Organic

Japanese Bushy Knotweed Rhizome (Hu Zhang) C.O. Powder - Nuherbs

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Y15045 C.Org.
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Herbal Information on Organic Japanese Bushy Knotweed Rhizome in Bulk Powder Form Common Names: Bushy Knotweed, Japanese Bushy Knotweed, Tiger Cane, Giant Knotweed, Some people may refer to this herb as Japanese Bushy K…

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Product Details

Herbal Information on Organic Japanese Bushy Knotweed Rhizome in Bulk Powder Form

Common Names: Bushy Knotweed, Japanese Bushy Knotweed, Tiger Cane, Giant Knotweed, Some people may refer to this herb as Japanese Bushy Knotweed Root and Rhizome
Botanical Name:  Polygonum cuspidatum; Rhizome
Pin Yin Name: Hu Zhang
Other Ingredients: None, nothing has been added to this product.
Package Size: One Pound (1 lb.)
Form: Certified Organic Powder - Fine-ground powder
Dosage: Consult your healthcare professional for correct dosage.
Origin: China
Brand: Nuherbs Organics
Caution:   Do not use if pregnant  or nursing.  Do not use in large doses.
California Prop 65

Notes: In the Chinese Herbal Medicine book Materia Medica, Hu Zhang Radix (Rhizoma polygoni cuspidati) has alternative names like Da Chang Zhang and Ku Zhang.
Additional Information About Hu Zhang

Benefits of Hu Zhang 

  • Dispelling Wind
  • Promotes Blood Circulation
  • Clears Heat
  • Transforms Phlegm
  • Drains Heat
  • Active Ingredient: Resveratrol

Hu Zhang, beneficial and restorative properties
Japanese Knotweed has high concentrations of resveratrol, a potent antioxidant which is also present in lesser quantities in grapes and mulberries. Japanese Knotweed is high in oxalic acid. Hu Zhang is a good source of vitamins A and C and contains potassium, manganese, zinc, and phosphorus. Resveratrol can also have a positive impact on cardiovascular health, lowering cholesterol, and balancing blood pressure. Resveratrol is part of a compound group called polyphenols, which protect the body and brain from any damage that could lead to tragic cognitive ailments. The resveratrol content in Japanese Knotweed acts an energizer to your brain pathways, keeping them active and healthy while antioxidants eliminate any free radicals.

Japanese knotweed rhizomes contain emodin (a natural occurring anthraquinone derivative) which helps regulate bowel movement and relieves obstinate constipation by acting as an natural laxative. The resveratrol found in Japanese Knotweed reduces gastrointestinal distress and also acts as a very mild laxative, which can help clear your system and get your digestive process back on track. The roots also aid in promoting the vessels to function properly which ultimately leads to good health. Hu Zhang is beneficial for swollen joints. 

Hu Zhang servers as an immune booster and increases the ability of the immune system to fight against infections. 

Hu Zhang clears heat-toxins and can be used both internally and externally for this purpose. Japanese knotweed has been shown to help in preventing pro-inflammatory pathways and aid in controlling diseases related to inflammation due to its bioactive constituents. Thus, concluded that the bioactive constituents of the herb consists of anti-inflammatory agents that helps to combat free radicals. Hu Zhang clears damp heat from the liver and gallbladder channels. Hu Zhang activates blood circulation to relieve pain with blood stagnation at its core.

Naturally Occurring Components of Hu Zhang: Though resveratrol is the best-known of the Hu Zhang components, it is important to know the others like:

  • Emodin
  • Physcion
  • Chrysophanol
  • Anthraglycoside A
  • Anthraglycoside B
  • Emodin-8-O-β-D-glucoside
  • Fallacinol
  • Citreorosein
  • Questin
  • Questinol

 hu zhang, japanese bushy knotweed, nuherbs, traditional bulk herbs, bulk tea, bulk herbs, teas, medicinal bulk herbs


Check out our How to Use Bulk Herbs page to see how to use herbs correctly. Our web page is constantly expanding, as of today we have articles on:

  • How to make salves, poultice, tinctures, teas, capsules, gargles, and foot bathes
  • How to make a citrus facial splash
  • Cayenne pepper: Caterpillar and aphid spray ( Natural insect repellent )
  • Citrus potpourri basket       


Natural herbal remedies for Lyme disease at


Each batch of herbs is dual-lab tested by in-house lab and independent third party lab. In-house lab is equipped with instruments such as a high performance liquid chromatograph, moisture determination meter, Fourier transform infrared spectrometer, atomic absorption spectrophotometer, gas chromatograph, etc.

In addition, the following additional tests are performed:

  • Microbacteria
  • Pesticides - over 200 pesticides tested for (Uab 2000 screen)
  • Heavy Metals - Lead, Mercury and Arsenic

Traditional Chinese Herbs

Chinese Traditional herbs should be regarded as an added feature to modern western healthcare, and not as a replacement. Chinese traditional herbs (Teas) emphasize harmony, and balance.



  • University of Missouri-Columbia. Grapes May Minimize Brain Damage In Stroke Victims. Science Daily (2003, November 27). <>.
  • People Against Cancer. Resveratrol - The Wonder Nutrient. Finding the Best Cancer Treatement (2008, September 16). <>.

9 Reviews

  • NuHerb Japanese Knotweed

    Posted by ClayZog on Aug 1st 2022

    I have taken ground J. Knotweed Rhizome powder on and off since 2016 when I I became infected with a persistent Tick-Borne illness that didn't respond to the typical CDC Rx. J. Knotweed has been a staple to mitigate my neurological symptoms. When at my worst, I would take it daily in large quantities, sometimes up to 9-12 tsp/day. I have purchased both NuHerb and Plum-Flower, both are similar, although Plum-flower typically has the finer grind in my experience. The most recent batch from NuHerb that I purchased in Q2 of 2022 has a more orange color than is typical of the herb when mixed with water, but tastes just the same. I'm not sure what this means, simply an observation.

  • Great products

    Posted by Susan L. Moesinger Cooper on May 4th 2021

    Our family likes your herbs and finds them reliable in quality and product identity. Your customer service is also outstanding. Whenever we have contacted you for an issue your company has followed through in a great and timely manner as well.

  • Knotweed

    Posted by M on Dec 4th 2020

    Good quality herbs, as always.

  • Japanese Knotweed

    Posted by Lynn on Oct 12th 2019

    Fresh, I use to make 00 capsules, treating for Lyme, also using Cat's Claw, I'm feeling more energetic

  • Herbs

    Posted by Arlette Vanarthos on Aug 5th 2019

    I purchased Japanese Knotweed and it is amazing. It is doing its job.

Japanese Bushy Knotweed Rhizome (Hu Zhang) C.O. Powder - Nuherbs