Prune the mahogany tree while it is young--two or three years after planting. This causes it to develop major limbs connecting to a central trunk. For added strength, the limbs must be spaced several feet apart from each other. Do not allow the limbs to grow larger than two-thirds the diameter of the central trunk.
Cut the mahogany tree limbs while it is dormant or right after the active growing season for the best results.
Prune any dead, diseased or damaged branches at any time before they affect the rest of the mahogany tree. Cut them just beyond the branch collar-- the swollen section where it connects with the trunk.
Thin the branches along the canopy when they grow too thick. This gives the canopy a more open look and allows proper air circulation.The goal is to remove limbs that are 1/2 to one inch around the perimeter of the canopy. Don't remove all the limbs connected to main branches or the trunk of the tree in the interior of the canopy.