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Oriental lady's thumb

Polygonum longisetumfam. Polygonaceae
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Polygonum longisetum (Oriental lady's thumb) — botanical photograph
Pl. 2711 — Polygonum longisetum
Polygonum longisetumPolygonum longisetumPolygonum longisetumPolygonum longisetumPolygonum longisetumPolygonum longisetumPolygonum longisetumPolygonum longisetumPolygonum longisetumPolygonum longisetumPolygonum longisetumPolygonum longisetumPolygonum longisetumPolygonum longisetum
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Overview

Oriental lady's thumb (Polygonum longisetum), a shrub in the Polygonaceae family, is native to a wide range of regions including Amur, China, India, Japan, and other parts of Asia. This plant thrives in moist to wet conditions with light to partial shade and can grow up to 0.5 meters tall. It is adaptable to various soil types, including sandy, medium, and clay soils, making it a versatile addition to gardens and natural landscapes. The leaves and seeds of Oriental lady's thumb are edible, adding a mild flavor to various dishes when eaten raw or cooked. The seeds, after being dried, are also used in culinary applications. Additionally, this plant has documented medicinal uses, though caution should be exercised when using it for any health purposes, as the specific benefits and dosages are not provided here. Oriental lady's thumb is native to regions such as Amur, China North-Central, China South-Central, China Southeast, India, Inner Mongolia, Japan, Jawa, Khabarovsk, Korea, Krasnoyarsk, Kuril Is., Manchuria, Mongolia, Myanmar, Nansei-shoto, Nepal, Pakistan, Philippines, Primorye, Sakhalin, Taiwan, Tibet, Tuva, West Himalaya, and West Siberia. It has also been introduced to areas including Alabama, British Columbia, Connecticut, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Brunswick, New Jersey, New York, North Carolina, Ohio, Ontario, Pennsylvania, South Carolina, Tennessee, Texas, Transcaucasus, Vermont, Virginia, West Virginia, and Wisconsin. Its ability to grow in diverse environments and its dual use as both an edible and medicinal plant make it a valuable addition to gardens and natural settings.

Quick answers

What is Oriental lady's thumb?

Oriental lady's thumb (Polygonum longisetum), a shrub in the Polygonaceae family, is native to a wide range of regions including Amur, China, India, Japan, and other parts of Asia. This plant thrives in moist to wet conditions with light to partial shade and can grow up to 0.

Compare with:Nepalese smartweed→sour dock→amamastla→all comparisons →
IV·b

Mixology suggestions

2 drafts
Editorial drafts. These pairings are AI-suggested from traditional herbal lore. Always verify with a qualified herbalist before brewing.
Evening Calm
sleep
tea
Traditional bedtime infusion.
Gentle Digest
digestion
tincture
Historically used for digestive support.
Growingconditions · propagation · uses
V

Cultivation

Oriental lady's thumb 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 0.5 meters tall and has a shrub-like habit. This annual plant is hardy in temperate regions and is native to various parts of Asia and the Philippines. For cultivation, ensure the soil remains consistently moist; it can tolerate a range of soil types but prefers well-drained conditions. Harvest its edible leaves and seeds for use.
Light
Full sun, Partial sun/shade
Water
Moist, Wet
Soil
Light (sandy), Medium, Heavy (clay)
Life cycle
Annual
Habit
Shrub
Mature size
0.5 m tall
For first-time growers

How to grow Oriental lady's thumb for the first time

8steps

Start with Oriental lady's thumb as an easy-to-grow annual for a beginner gardener.

  1. 1

    What you'll need

    Seeds, a small trowel or scoop, and some compost.

  2. 2

    Best time to plant

    Plant in early spring after the last frost, or start seeds indoors about 4 weeks before the last expected frost.

  3. 3

    Soil and container prep

    Choose a spot with partial sun to full sun. Ensure soil is moist, well-draining, and rich in organic matter; amend as needed with compost.

  4. 4

    Sowing or transplanting

    Direct sow seeds 0.5 cm deep and about 15 cm apart. Alternatively, start seeds indoors and transplant seedlings when they have two true leaves.

  5. 5

    First two weeks

    Keep the soil consistently moist during germination. Thin out seedlings to ensure each plant has enough space once they grow.

  6. 6

    Ongoing care

    Water regularly, especially in dry periods, and mulch around plants to retain moisture. Fertilize lightly with compost every few weeks.

  7. 7

    Harvest or pruning

    Prune back any dead or yellowing leaves to encourage new growth. Harvest young leaves for cooking as needed.

  8. 8

    Common mistakes

    Overwatering, not providing enough sunlight, and neglecting regular pruning are common issues beginners should avoid.

VI

Edible & utility

Edible parts:LeavesSeed
Edible uses: The leaves and seeds of Oriental lady's thumb are edible. The leaves can be eaten raw or cooked in various dishes, while the seeds are typically used after being dried. Both parts add a mild flavor to food.
Contextrange · companions · related
VII

Distribution

26 native · 36 introduced
Distribution across2 continents· 26 native· 36 introduced
Europe1 region
native (1)Russia
Asia11 regions
native (10)ChinaIndiaJapanMongoliaMyanmarNepalPakistanPhilippinesSouth KoreaTaiwan
introduced (1)Georgia
Broader regions
native:Amur, Jawa, Khabarovsk, Krasnoyarsk, Kuril Is., Nansei-shoto, Primorye, Sakhalin, Tuva, West Himalaya
introduced:Alabama, British Columbia, Connecticut, Delaware, Florida, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Masachusettes, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Brunswick, New Jersey, New York, North Carolina, Ohio, Ontario, Pennsylvania, South Carolina, Tennessee, Texas, Transcaucasus, Vermont, Virginia, West Virginia, Wisconsin
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Specimen gallery

1 image
Polygonum longisetum (Oriental lady's thumb) — botanical photograph
Oriental lady's thumb (Polygonum longisetum)
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See also

8 related
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Explore further

XII

About this entry

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