Trees, shrubs, bushes, and other woody vegetation growing on the tree lawn shall be considered property of the City. The City has the right to plant, prune, maintain, and remove such vegetation from the tree lawn area as necessary to insure public health and safety or to preserve/enhance the symmetry and beauty of the grounds. The owner or occupant of the premises fronting the tree lawn is the custodian of the tree lawn and shall keep the area in good condition. No structure of any type shall be placed in the tree lawn except with written permission from the Director of Service & Engineering. The City may advise property owners, free of charge, on the choice of species, proper planting techniques, and proper maintenance practices for trees on private property. However, the City may not plant, prune, maintain, or remove any vegetation on private property.