The common term for a soil that is acid (pH below 7) is “sour.” Soil that is alkaline (pH above 7) is often called “sweet.” Most garden vegetables do well when the soil has a pH of 6-6.5 ...

As the amount of hydrogen ions in the soil increases the soil pH decreases thus becoming more acidic. From pH 7 to 0 the soil is increasingly more acidic and from pH 7 to 14 the soil is increasingly ...