What is the recommended pH range for most landscape plants?

The recommended pH range for most landscape plants is typically between 6.0 and 7.0. This range is considered ideal because it allows for optimal nutrient availability and uptake by plant roots. In this pH range, essential nutrients such as nitrogen, phosphorus, and potassium are most accessible, which supports healthy growth and development. Additionally, beneficial soil microorganisms thrive within this pH range, further enhancing nutrient availability and soil health.

When the pH is too low, as in the first option, it can lead to a condition known as soil acidity, which can hinder plant growth by making certain nutrients unavailable. High pH levels, such as those in the other options, can lead to alkaline soil conditions that can similarly limit nutrient uptake and negatively affect plant health. Therefore, maintaining the pH between 6.0 and 7.0 is crucial for achieving optimal growing conditions for a wide variety of landscape plants.