Please note, orders for potted plants will be shipped starting Late September.

Indigo, Japanese (Ko-Joh-Ko) (Persicaria tinctoria) potted plant, organic

$7.50

Family:  Buckwheat (Polygonaceae)

Annual, 150 days to maturity

(Dyer’s Knotweed, Ko-Joh-Ko, Liao lan) Frost-tender annual to 5 feet tall, a much-branched plant with pointed leaves and white flowers, 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, which by way of dyemaking (hydrolysis and acidification) yield 4-5% plant weight of pure indigo dye.  This variety is the preferred type (white-flowered) for dyemaking. Best to transplant seedlings to field in May, first harvest July, second harvest August.  Space plants 1 foot apart.

Potted plant, certified organically grown

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  1. Question

    melinda.fox13

    Are you going to have any of these this year?

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    Something wrong with this post? Thanks for letting us know. If you can point us in the right direction...

    • Richo Cech

      Richo Cech

      ni melinda, at this point we’re offering only the seeds of the pink cultivar. Here’s the link
      https://strictlymedicinalseeds.com/product/indigo-japanese-persicaria-tinctoria-packet-of-20-seeds-organic/
      These are recommended. we have a good growout going this year. probably won’t be offering plants because they are an easy annual. richo

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    • melinda.fox13

      Do these dye well ?

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      Something wrong with this post? Thanks for letting us know. If you can point us in the right direction...

    • One person found this helpful
      Richo Cech

      Richo Cech

      yes, they are absolutely loaded with the blue dye indicin. richo

      (1) (0)

      Something wrong with this post? Thanks for letting us know. If you can point us in the right direction...

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