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Open Access Publications from the University of California

Adjusting Soil pH in California Gardens

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Plant health can be affected by the acidity of soil. The conditions best for plant growth depend on the particular plant, but most plants prefer soil that is neither very acidic nor very alkaline.

Soil acidity can be adjusted to optimize plant growth, but adjusting acidity is not always the best course of action. Instead, it may be best to grow plants adapted to the native soil. For gardeners who decide to adjust the acidity of soil, it is important to understand when and how to do so.

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