Dolomite is a product you'll find in the soil improving section of the nursery or garden centre. It?s designed to help correct soil pH and bring it into the neutral range (which is a pH of 6-7). This is the range that veggies, fruit trees and many plants in the garden love. If you don't know your soil pH you can grab a simple soil testing kit for a few dollars and do the test on your own soil. Dolomite also adds calcium and magnesium to the soil. These are essential nutrients for healthy plant growth.