Polygonum maackianum
Polygonum maackianum
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Pl. 626B — Polygonum maackianum
Polygonum maackianumPolygonum maackianumPolygonum maackianumPolygonum maackianumPolygonum maackianumPolygonum maackianumPolygonum maackianumPolygonum maackianumPolygonum maackianumPolygonum maackianumPolygonum maackianumPolygonum maackianumPolygonum maackianumPolygonum maackianum
IOverview
Overview
Polygonum maackianum, commonly known as Amur knotweed or Manchurian tearthumb, is a herbaceous plant native to regions of China and East Asia, including Inner Mongolia, Korea, and Japan. This plant thrives in moist to wet soils and can be found growing in partial sun to full sun conditions. Known for its edible leaves and seeds, it has been cultivated for culinary purposes. One distinctive feature of this plant is its ability to grow up to 0.8 meters tall, making it a notable presence in the landscape. Its light requirement and soil preferences make it adaptable to various environments within its native range.
Quick answers
What is Polygonum maackianum?
Polygonum maackianum, commonly known as Amur knotweed or Manchurian tearthumb, is a herbaceous plant native to regions of China and East Asia, including Inner Mongolia, Korea, and Japan. This plant thrives in moist to wet soils and can be found growing in partial sun to full sun conditions.
What is Polygonum maackianum used for?
Traditionally used for digestion, immune support. Each claim is evidence-rated — see Section II for full citations.
Best for
Top 2 evidence-ranked uses of Polygonum maackianum
Clinicaluses · safety · chemistry · dosagemedicinal profile
IIBenefits & evidence
2 claims · 0 sources
Benefits & evidence
2 claims · 0 sources- Polygonum maackianum is traditionally used in Chinese medicine to aid digestion, often consumed as a tea. It may help alleviate digestive discomfort and support the overall health of the gastrointestinal tract.
The mechanism by which Polygonum maackianum aids digestion is not fully characterised but may involve compounds that interact with gut motility or reduce inflammation in the digestive system.
- Polygonum maackianum has been traditionally used in Chinese medicine to support immune health, often prepared as a decoction. Its use is based on the belief that it can help maintain overall well-being during seasonal changes.
The mechanism by which Polygonum maackianum supports immune function is not fully characterised but may involve bioactive compounds such as flavonoids and phenolic acids, known for their antioxidant properties.
IV·bMixology suggestions
1 draft
Mixology suggestions
1 draftEditorial drafts. These pairings are AI-suggested from traditional herbal lore. Always verify with a qualified herbalist before brewing.
Polygonum maackianum support blend
generaltea
AI returned a direct ingredient list; normalized into one draft blend for editorial review.
Growingconditions · propagation · uses
VCultivation
Cultivation
Polygonum maackianum thrives in full to partial sun and prefers moist to wet soil that is light (sandy), medium, or heavy (clay). It can grow up to 0.8 meters tall and is hardy in temperate regions. For cultivation, ensure the soil remains consistently moist; it can tolerate a range of soil types but performs best in well-drained conditions. Propagation is typically done through seeds. Harvest leaves and seeds for edible use.
Light
Full sun, Partial sun/shade
Water
Moist, Wet
Soil
Light (sandy), Medium, Heavy (clay)
Life cycle
Annual
Mature size
0.8 m tall
For first-time growers
How to grow Polygonum maackianum for the first time
8steps
Start with planting Polygonum maackianum in a sunny spot and follow these simple steps for success.
- 1
What you'll need
Seeds or seedlings, garden soil, container if needed.
- 2
Best time to plant
Plant seeds in spring after the last frost or transplant young plants in early summer.
- 3
Soil and container prep
Use well-draining soil with a mix of light (sandy), medium, or heavy clay. Ensure containers have drainage holes.
- 4
Sowing or transplanting
Direct sow seeds 1 cm deep in rows 30-45 cm apart. Transplant seedlings when they are 2-3 weeks old.
- 5
First two weeks
Water regularly to keep the soil moist but not waterlogged. Keep them in a partially shaded area if direct sun is too intense.
- 6
Ongoing care
Provide full or partial sun, and ensure consistent moisture. Fertilize lightly with compost once a month.
- 7
Harvest or pruning
Prune back after flowering to encourage new growth and prevent the plant from becoming leggy.
- 8
Common mistakes
...
VIEdible & utility
Edible & utility
Edible parts:LeavesSeed
Edible uses: The leaves and seeds of Polygonum maackianum are edible. The leaves can be eaten raw or cooked, while the seeds are typically dried for later use.
Contextrange · companions · related
VIIDistribution
10 native · 0 introduced
Distribution
10 native · 0 introducedDistribution across1 continent· 10 native
Asia4 regions
native (4)ChinaJapanSouth KoreaTaiwan
Broader regions
native:Khabarovsk, Primorye
IXSpecimen gallery
1 image
Specimen gallery
1 imageXSee also
8 related
See also
8 relatedPlants you might compare or use together — scored by shared family, common use cases, and growing requirements.
shared use cases
Different families, similar therapeutic role — good for comparing.
XI
Explore further
Companion planting
Health goals
Compare with similar plants
XII
About this entry
- Last updated
- Citation
- How to cite this entry · Submit a correction
Back to the cataloguePlant id · 626ba327-95ed-4fe6-bf95-4c6c26ead47b
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