Most plants grow well in soil with a pH between 6.0 and 7.0, or just slightly acidic. Plants growing in soil that is too acidic cannot make proper use of fertilizer and nutrients, such as nitrogen, phosphorus, potassium. The end result is that your grass becomes thin and discolored. Lime can help bring the pH down into acceptable levels, but be sure to have your soil tested before applying. Soil that’s too alkaline can be just as harmful as soil that is too acidic.
