About Soil pH Levels
Question: Is pH important to factor in when planting? If so which pH should I be looking for when I buy?
Answer: A pH of 6.5 is perfect for most home gardens, since most plants thrive in the slightly acidic to neutral range. Some plants like blueberries or azaleas prefer more acidic soil, while asparagus does best in soil that is neutral to slightly alkaline. It's best to search the levels needed for your plants to be sure.
To alter the pH of your soil to suit your plant needs, acidic soil is made more alkaline by applying finely ground limestone or wood ash, and alkaline soil is made more acidic by applying something like compost.