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The Meaning of Soil pH

What Does Soil pH Mean?


Soil pH is the measure of acidity or alkalinity in soil.  It is measuredd on a scale from 1 to 14, which indicates soil nutrient availability.

Neutral soil would be at 7 on the scale.  Numbers from 1 up to 7 are considered to be in the acidic range, numbers from 7 up to 14 are considered to be alkaline.

Most plants prefer a neutral to slightly acidic (6.5) soil.  There are some plants, however, that will require sweeter or more alkaline soil. 

To acidify soil, use spaghum peat or a commercial product such as Miracid.  To sweeten the soil, or make it more alkaline, add hydrated lime. 

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