For a good shade tree, it’s tough to beat Norway maple, unless you’re planting variegated Norway maple (Acer platanoides ‘Variegatum’). The green leaves with white edges brighten the landscape all season long. In fall, leaves shift to gold tones. Norway maple tolerates urban pollutants, but avoid planting it near driveways or sidewalks, because shallow roots can lift concrete. Trees grow 50 to 60 feet tall and 40 to 50 feet wide. Hardy in Zones 4-7.