United States.

I think it would have to be pretty bad.

Mar 09, – No pile should be within ′ of a human structure or public road – Piles should be placed within a gap in the forest, and well away from other trees. Never place a pile either at the base of a tree or beneath the reach of a tree’s treecutter.bars: 5.

Feb 14, Green branches are generally ok, with one exception. Avoid using green ponderosa pine boughs between January and August to avoid creating a breeding ground for ips bark beetles. If you have large pieces of wood, allow them to dry out as much as possible before creating your pile. Once the pile is dry and established, risk from “bad bugs” is treecutter.barted Reading Time: 4 mins.

Sep 19, Leaf mold can be easily made by simply placing fallen leaves in a large pile, sprinkling it with water, and then letting it sit until next spring. The leaves will decompose over the winter (if they don’t freeze) and early treecutter.barted Reading Time: 6 mins. There is a toxin in black walnut leaves which is not good for some plants. Don't pile a foot of leaves up on the trunks of trees.

That can lead to trunk rot. Logan L Johnson. 3 years ago. I don't think that it would hurt them, but depending on the type of leaves and the setting, may be an eyesore.