Mulch is an attractive way to grow and protect your trees. It keeps the trees from getting damaged by a mower on account of there being no grass close enough to the tree to mow. Mulch also carries the added benefits of preserving soil moisture, moderating soil temperatures, reducing the growth of weeds, and preventing compaction. In order to reap the benefits of mulching around your trees there are some guidelines we recommend.
1. Only apply two or three inches of mulch over the tree's roots. There is no need to dump a mound of mulch on a tree. First it's costly, and second the tree's roots may start to develop into the mulch rather than the ground.
2. Keep the trunk free of mulch as the bark needs to breath. Piling mulch onto the trunk of the tree can lock in moisture and cause collar-rotting organisms to develop. This will cause your tree to die. Make a nice little barrier between your new tree and the mulch.
3. Care for your mulch. If you see the mulch has been pushed up onto the tree or is scattered too thinly under your tree, try to maintain it when possible. This will help avoid killing the trees roots or tree bark. Maintaining the mulch also helps keep your property clean and tidy. It'll help you avoid random pieces of mulch floating into the house or the rest of your yard.