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IIIFolio · plant profile№ 42CBedible
Data provenancePermapeopleTreflePFAFPOWOreviewed 18 Oct 2026methodology → read

Sasamorpha borealis

Sasamorpha borealis
Educational content — not medical, botanical, or professional advice. Plant identification, safety, and edibility depend on local conditions, cultivars, and correct identification. Consult a qualified botanist or forager before consuming or handling wild specimens. How we source & review →
edibletreesedibleedible rootnative asiaperennialshade tolerant
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Sasamorpha borealis (Sasamorpha borealis) — botanical photograph
Pl. 42CB — Sasamorpha borealis
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Overview

Sasamorpha borealis, native to Japan, Korea, and Sakhalin, is a light-loving plant that thrives in moist, well-drained soils ranging from light sandy to heavy clay. Hardy in zones 6-9, this species can grow up to 3 meters tall and is well-suited to partial sun to shade conditions. Known for its edible seeds, Sasamorpha borealis is both ornamental and useful as a food source, making it a versatile addition to gardens in suitable climates. Its adaptability to various soil types and partial sun to shade conditions makes it an interesting choice for gardeners looking to add a unique plant with multiple uses. While the seeds can be eaten raw or cooked and are often used in traditional dishes, it is important to exercise caution and ensure proper identification before consumption.

Quick answers

What is Sasamorpha borealis?

Sasamorpha borealis, native to Japan, Korea, and Sakhalin, is a light-loving plant that thrives in moist, well-drained soils ranging from light sandy to heavy clay. Hardy in zones 6-9, this species can grow up to 3 meters tall and is well-suited to partial sun to shade conditions.

Growingconditions · propagation · uses
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Cultivation

Sasamorpha borealis thrives in partial sun to shade and prefers moist, well-drained soil that can be light (sandy), medium, or heavy (clay). It is hardy in zones 6-9 and can grow up to 3 meters tall. For cultivation, ensure the soil remains consistently moist. Propagation is through seeds. This plant is native to Japan, Korea, and Sakhalin and is edible, with its seeds being the part used.
Light
Partial sun/shade
Water
Moist
Soil
Light (sandy), Medium, Heavy (clay)
Hardiness
6-9
Mature size
3.0 m tall
For first-time growers

How to grow Sasamorpha borealis for the first time

8steps

Start with Sasamorpha borealis as a simple, low-maintenance plant for your garden.

  1. 1

    What you'll need

    Seeds or seedlings, potting soil, containers if planting in pots.

  2. 2

    Best time to plant

    Plant Sasamorpha borealis from late spring to early summer for best results.

  3. 3

    Soil and container prep

    Use well-draining soil with a mix of light (sandy), medium, or heavy clay soils. Ensure containers have drainage holes.

  4. 4

    Sowing or transplanting

    Direct sow seeds in the ground or start them indoors 4-6 weeks before the last frost and then transplant.

  5. 5

    First two weeks

    Keep soil consistently moist, providing partial sun to shade. Monitor for any signs of stress.

  6. 6

    Ongoing care

    Water regularly, keeping the soil moist but not waterlogged. Provide light to medium shade and mulch to retain moisture.

  7. 7

    Harvest or pruning

    Prune as needed to maintain shape and remove dead foliage. Harvest seed when ripe.

  8. 8

    Common mistakes

    Overwatering, planting in full sun, neglecting to provide partial shade.

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Edible & utility

Edible parts:Seed
Edible uses: The seeds of Sasamorpha borealis are edible and can be eaten raw or cooked. They are often used in traditional dishes, adding a nutty flavor to meals. Skip the preparation details for brevity.
Contextrange · companions · related
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Distribution

3 native · 0 introduced
Distribution across1 continent· 3 native
Asia2 regions
native (2)JapanSouth Korea
Broader regions
native:Sakhalin
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Specimen gallery

1 image
Sasamorpha borealis (Sasamorpha borealis) — botanical photograph
Sasamorpha borealis (Sasamorpha borealis)
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Explore further

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About this entry

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