Apply yearly to maintain acidity levels, as soil can revert to its original pH if you don't keep up with your acid-increasing chores. Use Iron Sulfate To Lower Soil pH Levels Iron or ferrous ...

Achieving the optimal pH can involve modifying the soil with elemental sulfur, especially in cases where the soil is too alkaline ...

Learning how to test your soil’s pH or find out how acidic your soil is easy as there are a few tools you can use. It's a good idea to perform one of these checks before deciding what to plant ...