sour dock
Rumex daiwoofam. Polygonaceae
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Pl. 8038 — Rumex daiwoo
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IOverview
Overview
Rumex daiwoo, commonly known as sour dock, is a perennial plant native to Japan and found in other regions including Burundi, Congo, Kenya, Malawi, Rwanda, Tanzania, and Uganda. This plant thrives in moist, wet environments with light or partial sun exposure and can grow up to 1 meter tall. It is valued both for its edible leaves and seeds, as well as its documented medicinal properties. One distinctive feature of sour dock is its adaptability to various soil types, including light (sandy), medium, and heavy (clay).
Quick answers
What is sour dock?
Rumex daiwoo, commonly known as sour dock, is a perennial plant native to Japan and found in other regions including Burundi, Congo, Kenya, Malawi, Rwanda, Tanzania, and Uganda. This plant thrives in moist, wet environments with light or partial sun exposure and can grow up to 1 meter tall.
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.
Growingconditions · propagation · uses
VCultivation
Cultivation
Sour dock (Rumex daiwoo) thrives in full to partial sun and prefers moist to wet soil, though it can adapt to light sandy, medium, or heavy clay soils. This perennial grows up to 1 meter tall and is hardy in temperate regions. For cultivation, ensure the soil remains consistently moist; however, overwatering should be avoided. Propagate sour dock through division of established plants or by sowing seeds directly into the garden bed. Harvest its edible leaves and seeds for culinary use.
Light
Full sun, Partial sun/shade
Water
Moist, Wet
Soil
Light (sandy), Medium, Heavy (clay)
Life cycle
Perennial
Mature size
1.0 m tall
For first-time growers
How to grow sour dock for the first time
7steps
Start with sour dock as a simple, low-maintenance perennial for your garden.
- 1
What you'll need
A small sour dock plant or seeds, a trowel, and mulch.
- 2
Best time to plant
Plant in spring after the last frost or in early fall.
- 3
Soil and container prep
Choose a spot with light to partial sun. Ensure soil is moist, well-draining, and rich in organic matter.
- 4
Sowing or transplanting
Transplant young plants 30 cm apart. Sow seeds directly into the ground, covering them lightly.
- 5
First two weeks
Keep soil consistently moist. Water daily until plants are established.
- 6
Ongoing care
Water regularly to keep soil moist but not waterlogged. Mulch around plants to retain moisture and suppress weeds.
- 7
Harvest or pruning
Prune spent flowers to encourage new growth and maintain plant shape. Harvest leaves as needed, taking only a few from each plant.
VIEdible & utility
Edible & utility
Edible parts:LeavesSeed
Edible uses: The sour dock (Rumex daiwoo) is edible and its leaves and seeds can be consumed. The leaves are often eaten raw in salads or cooked as a vegetable. Seeds can also be harvested and used in various culinary applications, though specific preparation methods are not detailed here.
Other uses:DyePest control
Contextrange · companions · related
VIIDistribution
10 native · 0 introduced
Distribution
10 native · 0 introducedDistribution across2 continents· 10 native
Asia1 region
native (1)Japan
Africa7 regions
native (7)BurundiKenyaMalawiRwandaTanzaniaUgandaZambia
Broader regions
native:Congo, Zaïre
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 (Polygonaceae), common use cases, and growing requirements.
same family · Polygonaceae
Botanical relatives — often share phytochemistry + growing needs.
XI
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Companion planting
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