Indigo, Japanese White (Ko-joh-ko) (Persicaria tinctoria) packet of 20 seeds, Organic

(1 customer review)

$3.95

Family:  Buckwheat (Polygonaceae)

Annual, 150 days to maturity

(Dyer’s Knotweed, Ko-joh-ko, Liao lan) This is the white-flowered type, which is considered to be highest in indicin, although the pink type is also serviceable.  Frost-tender annual to 5 feet tall, a much-branched plant native to Eastern Europe and Asia, including especially Japan and Korea.  Traditional use:  Fresh and Dried leaves used in treating infections, as a disinfectant, also as a treatment for canker sores and seafood poisoning.  Source of indicin–pure indigo dye. Seed is fresh and refrigerated and should be planted as soon as possible after receipt.  Sow 1/4 inch deep in rich soil, tamp securely, keep evenly moist and maintain at 70 to 75 degrees F for best germination.  The basic horticultural technique for growing these in the temperate zone is to sow the seed in March, transplant seedlings to field in May, first harvest July, second harvest August.

20 seeds per packet, open-pollinated, untreated, not genetically modified

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  1. One person found this helpful
    Beth

    Beth

    Excellent germination. Beautiful plants! I used it to make indigo powder with great results. Fermented and processed with hydrated lime. This picture is the pink variety but I used the white for the dye batch.

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