Also, some plants do well only in slightly acid to moderately alkaline soils. However, a slightly alkaline (pH 7.4-7.8) or higher pH soil can cause a problem with the availability of iron to pin oak ...

The pH of a soil refers to its acidity or alkalinity ... these conditions should do particularly well. It does pose some problems. In summer, it is often baked dry, with visible surface cracks ...

If your garden soil lacks acidity, you can correct the imbalance with this safe, affordable, and widely available addition.