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Soil Amendments

Q.Where Can I Buy Small Quantities Of Horticulture Ash Like Hardwood Ash For Composting?

Zone 92024 | Anonymous added on May 23, 2021 | Answered

From NYT article, “That compost bin in the livingroom.” The method is simple. Some of the materials we use in Japan might be hard to find here, but they’re easy to substitute. You just need a large cardboard box, coco peat, which is made from coconut husks, and kuntan, or rice husk ash, which is used widely in Japan to improve soil health. Together, the coco peat and kuntan create the ideal conditions for oxygen-hungry aerobic bacteria to thrive, which then help decompose food scraps. You can order coco peat online from garden shops. I’ve never seen kuntan for sale in the United States, but you can use horticultural ash like hardwood ash.

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Certified GKH Gardening Expert
Answered on May 28, 2021

Do you know anyone who burns wood in a wood-burning stove or in indoor or outdoor fireplaces? Failing that, I did see it offered online at a couple garden supplies shops. (we don't make product or retail recommendations). I would not order from individuals selling it, however. You could try your local big box garden centers or garden nurseries.


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