(a) Unless specified elsewhere in this Ordinance, landscaping shall be provided as part of all nonresidential land developments and residential subdivisions in accordance with the following standards. It shall be conceived in a total pattern throughout the site, integrating the various elements of the site design, preserving and enhancing the particular identity of the site and creating a pleasing site character.
(b) Landscaping may include plant materials such as trees, shrubs, ground cover, perennials, and annuals and other materials such as rocks, water, sculpture, art, walls, fences, and building and paving material.