What does the pH of the soil mean?
Soil pH is the most commonly used index of plant root zone acidity or alkalinity. The pH scale ranges from 0 (very acidic) to 14 (very alkaline or basic) with a scale of 7 to be considered neutral. The pH level is important because plants generally prefer either acid or alkaline conditions. The soil pH affects the chemical reaction between plant roots and nutrients and the availability of nutrients in the soil for plant use. Plants placed in the wrong soil or pH or watered with the wrong pH will not thrive.