Suaeda japonica
Suaeda japonica
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 →
Pl. 0B38 — Suaeda japonica
Suaeda japonicaSuaeda japonicaSuaeda japonicaSuaeda japonicaSuaeda japonicaSuaeda japonicaSuaeda japonicaSuaeda japonicaSuaeda japonicaSuaeda japonicaSuaeda japonicaSuaeda japonicaSuaeda japonicaSuaeda japonica
IOverview
Overview
Suaeda japonica, commonly known as Japanese saltwort, is an annual plant native to Japan and Korea, with a range extending to Albania, Algeria, the Canary Islands, Cape Verde, and Corsica. This plant thrives in moist, light (sandy), medium, or heavy (clay) soils with a pH between 7.5 and 8, making it adaptable to various growing conditions. Known for its edible leaves, Suaeda japonica is both ornamental and useful as an ingredient in traditional cuisine. One distinctive feature of this plant is its ability to grow up to 0.3 meters tall, while another notable characteristic is its light energy requirement, indicating a preference for less intense sunlight.
Quick answers
What is Suaeda japonica?
Suaeda japonica, commonly known as Japanese saltwort, is an annual plant native to Japan and Korea, with a range extending to Albania, Algeria, the Canary Islands, Cape Verde, and Corsica. This plant thrives in moist, light (sandy), medium, or heavy (clay) soils with a pH between 7.
Growingconditions · propagation · uses
VCultivation
Cultivation
Suaeda japonica thrives in moist conditions and prefers light to medium-heavy soils, making it adaptable to various garden settings. It requires full sun to partial shade for optimal growth. The plant is annual and reaches a height of 0.3 meters. For cultivation, use soil with a pH between 7.5 and 8. Propagation can be done through seeds, which should be sown directly in the ground after the last frost. While hardiness isn't specified, it is native to temperate regions like Japan and Korea, suggesting it may benefit from protection during colder climates. Harvest the edible leaves for culinary use.
Light
8/10
Water
Moist
Soil
Light (sandy), Medium, Heavy (clay)
Life cycle
Annual
Mature size
0.3 m tall
Soil pH
7.5–8
For first-time growers
How to grow Suaeda japonica for the first time
8steps
Start with Suaeda japonica for a low-maintenance, beginner-friendly project.
- 1
What you'll need
Seeds or small plants, containers or garden space, potting soil.
- 2
Best time to plant
Plant in spring after the last frost or in late summer for cooler climates.
- 3
Soil and container prep
Use a well-draining mix with a pH of 7.5–8, ensuring it's light (sandy), medium, or heavy clay.
- 4
Sowing or transplanting
Direct sow seeds in the garden or start them indoors and transplant when they have two true leaves.
- 5
First two weeks
Keep soil moist but not waterlogged. Provide partial shade to avoid scorching.
- 6
Ongoing care
Water regularly, especially during dry spells, and mulch to retain moisture. Prune lightly to encourage bushy growth.
- 7
Harvest or pruning
Prune back after flowering to maintain shape and prevent seed production.
- 8
Common mistakes
Overwatering, planting in heavy shade, neglecting to prune regularly.
VIEdible & utility
Edible & utility
Edible parts:Leaves
Edible uses: The leaves of Suaeda japonica are edible and can be eaten raw or cooked. They are often prepared in salads or as a side dish. The plant thrives in light to medium soil with a pH between 7.5 and 8.
Contextrange · companions · related
VIIDistribution
27 native · 3 introduced
Distribution
27 native · 3 introducedDistribution across4 continents· 27 native· 3 introduced
Europe8 regions
native (8)AlbaniaCyprusFranceGreeceItalyPortugalSpainUnited Kingdom
Asia3 regions
native (3)JapanPalestineSouth Korea
Americas3 regions
introduced (3)CubaDominican RepublicHaiti
Africa6 regions
native (6)AlgeriaCabo VerdeEgyptLibyaMoroccoTunisia
Broader regions
native:Kriti, Selvagens, Sinai, Yugoslavia
IXSpecimen gallery
1 image
Specimen gallery
1 imageXI
Explore further
Companion planting
XII
About this entry
- Last updated
- Citation
- How to cite this entry · Submit a correction
Back to the cataloguePlant id · 0b38e4c3-12d2-4d33-aaaf-eee103db2d3f
Decision aid
Choosing between Suaeda japonica and something else?
Continue reading
❦❦❦❦
Endpaper · archive updates
Get archive updates
Occasional email when substantial new content lands — plant profiles, seasonal growing notes, folk-remedy additions. Free, no tracking, unsubscribe anytime.