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What is the pH range of organic compost?

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pH Range of Organic Compost

One site I just found says the pH of finished compost is 6.0 - 8.0

I have no idea if that is accurate or not, but perhaps thats the range you were looking for.

I am under the impression that the range will probably not be very specific. You could have more acidic or more basic of almost everything.

IN ADDITION:

A friend owns a clean landfill. This means only trees, clean soil, brush and clean concrete are allowed. He chips all the green matter and lets it compost. I was going to use this material for a soil conditioner until I had it tested. The pH came back as a 3. It was too low to be used for anything but a mulch.

The PH of the organic compost or any other compost will reflect the PH of the material composted.

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First answer by Klox. Last edit by Mcgrumpy. Contributor trust: 14 [recommend contributor]. Question popularity: 72 [recommend question]

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