Plants grow best when the pH of the soil is close to 7.
True
Plants grow best when the pH of soil is close to 7. Most nutrients that plants need can dissolve easily when the pH of the soil solution ranges from 6.0 to 7.5. Below pH 6.0, some nutrients, such as nitrogen, phosphorus, and potassium, are less available. When pH exceeds 7.5 iron, manganese, and phosphorus are less available.