What is Alkaline?

Alkaline soil problems

Alkaline soil has a pH above 7.0. When soil registers between 7 and 8 on the pH scale, it is considered mildly alkaline. At 8.0 to 9.0, it is considered moderately alkaline, and above that, highly alkaline.

Alkalinity affects plants' ability to absorb phosphorus, iron and manganese. Generally areas with frequent droughts and desert areas have highly alkaline soil.

Soil alkalinity can be reduced by adding organic matter or sulphur. The opposite of alkaline is acidic.

Related Article: Desert Garden Soil Problems

Robert Dailey in his garden, Camille Dailey

Robert Dailey - Robert Dailey’s interests and abilities are wide-ranged and eclectic. As a master gardener and garden writer, both his garden and ...

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