Street trees shall be planted not less than forty feet (40') apart with a minimum of one tree per lot. They shall be placed five feet (5') to seven feet (7') inside the property line and not in the side strip or boulevard. No trees shall be planted within thirty feet (30') of the intersection of curb lines on corner lots. The minimum size shall measure one and one-half inches (11/2") in diameter at ground line. No two (2) consecutive trees shall be of the same type or variety, and only those varieties approved by the city engineer will be used. (Ord. 1157, 6-11-2007)