A tree planted 10 feet from the west wall, will shade an area four times longer than a tree planted 20 feet from that wall. The shape of a tree also influences the duration of the shade. Spreading, round and vase-shaped tree canopies will provide shade for the longest time. Mature tree height should also be considered when selecting plants. If you select taller trees, they should be planted farther away from the home.
Tall trees can be a safety hazard when canopies begin to overhang the roof.
During the summer months, deciduous trees have a full canopy of leaves which provide shade. In the winter months, they drop their leaves allowing the warming effect of the sun through. In general, the best location for deciduous plants are on the south and southeast sides of your home. Northern Florida is known to have winters with temperatures well below freezing. To compensate for this more severe heating season, deciduous vines, shrubs and trees are good choices.