The diagram and descriptions below give an idea what size trees are appropriate in each zone of your yard.
Parking strip under power lines — Zone 1
Near the parking strip; stick with small trees (20-35 feet). They are generally compatible with overhead power lines. Also consider the shape or spread of the tree; a species with a spreading crown is better suited to a wider parking strip. See our handy tree selection guide.
Front/side yard — Zone 2
Small to medium sized trees are appropriate here, depending on the size of your front/side yards. Medium sized trees (35-50 feet), require large private lawn areas. Plant trees with spreading crowns at least 25 feet away from wires, sidewalks and buildings; plant trees with columnar or pyramidal forms at least 10 feet away.
Back yard — Zone 3
In the backyard, any size tree is okay — depending on the size of your yard. Large trees (50+ feet) require a large yard. Remember, trees with spreading crowns should be at least 25 feet away from wires, sidewalks and buildings; trees with columnar or pyramidal forms should be at least 10 feet away.