Leaving the tree stump and letting it rot is never a good idea, as this leads to insect infestations and other frustrations. Additionally, decomposing trunks are at risk for diseases that spread out to the remaining plants and trees in the yard, thus ruining your whole outdoor aesthetic. It's usually best to remove the stump at the same time you remove the tree.

Whether tree roots will continue to grow after a tree has been cut down depends on the species. Some tree roots will eventually die because they can no longer get nutrients through photosynthesis. However, other species that reproduce through root sprouts can continue to grow and produce new sprouts for seven years or more. For example, the roots of elms, ficus, and willows tend to regrow aggressively, while the roots of pines, oaks, and maples will typically die. To determine if a root system is still active, look for new sprouts on the old trunk, stump, or any exposed roots.

For small trees, tree removal should take just a couple of hours to complete. Assume that a mid-sized tree will take between four and eight hours, depending on the extent of the equipment required and the health of the tree. Remember to add up to two hours for stump removal. Larger trees could take as long as one or two working days, about eight hours each.

Aside from removing dead or diseased branches, you should prune your trees somewhere between every one and three years. Some people—particularly commercial farmers—prune their apple trees yearly to produce higher yields. This is the best way to promote tree health. That said, the average homeowner can get away with hard-pruning their mature apple tree every other year or every three years.