905.07  TREES AND SHRUBS ON CITY PROPERTY.
   (a)    Permit to Plant.  No person shall plant any tree or shrub in any parkway, street, right of way or other property owned or held by the City  without having first obtained the written consent of the City Manager.
   (b)    Duty to Trim.  It shall be the duty of every owner, controller and manager of lots bounding and abutting on street areas, including sidewalks, of the City, for the distance which their lots so abut and border, to take the following steps for the protection of the public:
      (1)    To cut away and remove all trees, parts of trees, and limbs which are dead or which because of decay or other causes, threaten the safety of persons using the streets and sidewalks.
      (2)    To trim, cut away and remove overhanging limbs of trees and shrubs so that no part thereof shall be lower than seven feet from a sidewalk or ten feet from the surface of a street over which they hang.
      (3)    To cut and remove all weeds and bushes which grow or encroach upon a sidewalk or street.
      (4)    To keep all hedges so trimmed that they will not extend over any part of a street or sidewalk and will not be of greater height than three feet.
      (5)    To cut down and remove any tree, plant or shrubbery, or any part thereof, as may be necessary to provide a clear and unobstructed view of traffic from all directions at any street intersection, or to abate any nuisance necessary to protect life, limb or property of persons, drivers of any vehicles or pedestrians using such street or sidewalk.
      (6)    The requirements of this subsection shall apply to trees, shrubs, hedges, weeds and bushes growing either upon the lots or upon parkways and portions of the street adjacent to such lots.
      (7)    In the event of the failure of such owner, controller or manager to perform any service required by subsections (b)(l) to (b)(5) hereof, then the City Manager may have such work done by City employees or by an independent contractor, at the expense of the owner, controller or manager of such lot. (1975 Code Sec. 17-8)