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

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Herbal Information on Organic Japanese Bushy Knotweed Rhizome in Bulk Powder Form Hu Zhang: Unveiling the Miraculous Benefits of Japanese Knotweed Hu Zhang, also known as Japanese Knotweed (Polygonum cuspidatum), is a re…

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

Hu Zhang: Unveiling the Miraculous Benefits of Japanese Knotweed

Hu Zhang, also known as Japanese Knotweed (Polygonum cuspidatum), is a revered herb in traditional medicine, particularly within Chinese and Japanese therapeutic practices. This versatile plant is celebrated for its extensive health benefits, attributed to its rich composition of bioactive compounds. Our comprehensive guide delves into the myriad of ways Hu Zhang can enhance overall well-being and treat a variety of ailments.

Nutritional Profile of Hu Zhang

A Rich Source of Essential Nutrients

Hu Zhang is a treasure trove of essential vitamins and minerals. It boasts a substantial content of vitamins A and C, which are vital for immune function and skin health. Moreover, it is an excellent source of potassium, manganese, zinc, and phosphorus, all of which play crucial roles in maintaining bodily functions and preventing chronic diseases.

High Resveratrol Content

One of the standout components of Hu Zhang is its high concentration of resveratrol. This powerful antioxidant is also found in grapes and mulberries but is present in much higher amounts in Japanese Knotweed. Resveratrol is renowned for its ability to support cardiovascular health, balance cholesterol levels, and reduce blood pressure. Its role in protecting against oxidative stress also makes it beneficial for brain health, potentially preventing cognitive decline.

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Health Benefits of Hu Zhang

Cardiovascular Health

Hu Zhang's rich resveratrol content significantly benefits heart health. It helps lower LDL cholesterol, known as "bad" cholesterol, and promotes the maintenance of healthy blood pressure levels. By supporting vascular function and reducing inflammation, Hu Zhang aids in the prevention of heart diseases.

Cognitive Function and Brain Health

Resveratrol in Hu Zhang also acts as a neuroprotective agent. It enhances brain function by boosting the energy levels of neural pathways and protecting against oxidative damage. This can help in preventing degenerative diseases such as Alzheimer’s and Parkinson’s by maintaining cognitive function and mental clarity.

Digestive Health and Bowel Regulation

Hu Zhang is an excellent herb for digestive support. The rhizomes contain emodin, a natural compound that acts as a mild laxative, aiding in the relief of constipation and promoting regular bowel movements. It also helps in reducing gastrointestinal distress and ensuring a smooth digestive process, making it a great remedy for digestive disorders.

Anti-Inflammatory and Pain Relief

The bioactive constituents in Hu Zhang, particularly resveratrol, have potent anti-inflammatory properties. They help in reducing inflammation by inhibiting pro-inflammatory pathways, thus providing relief from conditions like arthritis and other inflammatory diseases. Hu Zhang is also effective in relieving pain by promoting blood circulation and alleviating blood stagnation.

Immune System Support

Hu Zhang serves as an immune booster. It enhances the body’s ability to fight off infections and supports the immune system in combating viruses and bacteria. Its anti-inflammatory and antioxidant properties contribute to overall immune health, making it a valuable herb for maintaining resilience against illnesses.

Detoxification and Heat Clearance

Hu Zhang is effective in detoxifying the body and clearing heat-toxins. It can be used both internally and externally to reduce heat and inflammation. The herb helps in clearing damp heat from the liver and gallbladder channels, promoting liver health and aiding in the prevention of liver-related disorders.

Joint Health and Anti-Inflammatory Effects

Hu Zhang is beneficial for treating swollen and painful joints. Its anti-inflammatory properties help reduce joint inflammation and pain, providing relief for conditions such as rheumatoid arthritis and osteoarthritis. Regular use of Hu Zhang can improve joint function and mobility.

Hu Zhang: The Role of Japanese Knotweed in Lyme Disease Management

Lyme disease, a complex and often debilitating condition caused by the bacterium Borrelia burgdorferi, can lead to a myriad of symptoms ranging from joint pain to neurological issues. Japanese Knotweed, known as Hu Zhang in Traditional Chinese Medicine, has gained attention for its potential benefits in managing Lyme disease. Here’s a detailed exploration of how Hu Zhang can help in the treatment of Lyme disease.

Anti-Inflammatory Properties

One of the critical challenges in Lyme disease is managing the intense inflammation that can affect various parts of the body, including joints and the nervous system. Japanese Knotweed contains resveratrol, a potent anti-inflammatory compound. Resveratrol helps reduce inflammation by inhibiting pro-inflammatory cytokines and enzymes. This reduction in inflammation can alleviate symptoms such as joint pain, muscle soreness, and neurological discomfort, which are common in Lyme disease patients.

Antimicrobial Effects

Hu Zhang has demonstrated significant antimicrobial properties, which are beneficial in combating the Borrelia bacteria responsible for Lyme disease. Compounds such as resveratrol and emodin in Japanese Knotweed have been shown to inhibit the growth of Borrelia and other co-infecting pathogens. These antimicrobial effects can help reduce the bacterial load in the body, potentially lessening the severity of symptoms and slowing the progression of the disease.

Immune System Support

A robust immune response is crucial in fighting Lyme disease. Hu Zhang boosts the immune system by enhancing the activity of immune cells and supporting the body’s natural defenses against infections. This immune support is vital in managing chronic Lyme disease, where the immune system is often compromised. By strengthening the immune response, Japanese Knotweed helps the body to more effectively combat the Borrelia bacteria and other infections.

Neuroprotective Benefits

Lyme disease can significantly impact the nervous system, leading to symptoms such as brain fog, memory issues, and neurological pain. The resveratrol in Hu Zhang provides neuroprotective benefits by crossing the blood-brain barrier and exerting antioxidant effects. This protection helps reduce oxidative stress in the brain, potentially improving cognitive function and alleviating neurological symptoms associated with Lyme disease.

Support for Detoxification

Patients with Lyme disease often experience a buildup of toxins in the body, either from the bacterial die-off (Herxheimer reaction) or from the disease itself. Japanese Knotweed aids in detoxification by supporting liver function and enhancing the body’s ability to eliminate toxins. This detoxification process helps reduce symptoms such as fatigue and malaise, which are common in Lyme disease.

Enhancing Circulation

Poor blood circulation can exacerbate the symptoms of Lyme disease by reducing the delivery of oxygen and nutrients to tissues. Hu Zhang promotes blood circulation, which helps in reducing inflammation, improving nutrient delivery, and facilitating the removal of toxins. Improved circulation can lead to better overall health and symptom relief for Lyme disease sufferers.

How to Use Hu Zhang

How to use herbs Herbal Decoction

Hu Zhang is often used in the form of a herbal decoction. To prepare, simmer dried Hu Zhang root in water for 20-30 minutes to extract its beneficial compounds. This method ensures maximum extraction of its active ingredients, making the decoction highly effective for therapeutic use.

Liquid Extract

For a more concentrated form, Hu Zhang is available as a liquid extract. This form is easy to incorporate into daily routines and allows for precise dosing. The extract can be added to water, tea, or taken directly to enjoy its health benefits.

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
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.

Benefits of Hu Zhang 

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

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 herbsblue-bar1.jpg

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