All trees need pruning at some time. For most trees, the best time for pruning is while they are still young. Periodic structural pruning while a tree is still small creates a much stronger tree that will be healthier and look better for years to come. To maintain good health, large trees should also be pruned periodically. It is important to remove dead and rubbing branches which can allow decay into the tree. Sometimes trees must be pruned away from buildings or objects. It is very important to prune a tree properly. An improper pruning can inflict injuries on a tree from which it can not recover.