So if you’re looking to plant those in your garden, blue blossoms indicate your soil is ready. Adding aluminum sulfate to your soil will lower the pH and give your hydrangeas the aluminum needed ...

Acid sulfate soils (ASS) are a type of soil that can be ... nutrient deficiencies and toxicities from elements like iron and aluminum[2][5]. In the Ganges Delta, for instance, the transition ...

If you want to lower your soil's pH, elemental sulfur is a good option. Other options for lowering soil pH may include iron sulfate or aluminum sulfate, but they are more expensive than elemental ...