

Pruning after May can open up the canopy and expose branches to harsh sunlight. Pruning, aside from sprout removal, is discouraged after May. The best time to prune your citrus trees is February through April.

If the bottom of the canopy is low, hanging down, or starting to show signs of disease, then it should be removed. If fruit isn't growing inside the tree, then pruning so that more light and air can get through the canopy may be necessary, but generally this is only in cases where the trees are extremely dense. When you're pruning citrus trees, look for limbs that crisscross and remove them. This also keeps a dying limb from using water and nutrients that could benefit the rest of the tree. Any limb that looks as if it's ailing should be removed to keep any potential problems from spreading. They also may need judicious pruning of dead branches. Mature citrus trees still need sprouts removed regularly. Weak limbs should be carefully removed as well. Sprout removal is the most critical task when trees are young and not well-established. Young trees need regular attention to grow properly.

Because pruning should be minimal doesn't mean you can get away with no pruning at all.
