Q. What do pine needles do? We have many pine trees and an over abundance of pine needles. They make nice coverings for the ground and keep in moisture (In Alabama that is important.), but do they make chemical changes in the soil?
A. Pine needles are good for your garden! They are best if you can chop them up finely – with a hammer mill, or perhaps several times through a chipper shredder. And if you are thinking of growing your own seedlings, or would like to build and grow in Grow-Boxes, pine needles make a good substitute for sawdust, peatmoss, perlite, etc.