Buffers. A landscaped buffer shall be installed and maintained on all sides where a parking area abuts adjoining properties or public right-of-way, except as provided in Subsection B(6)(e) below. It shall have a minimum width of five feet measured inward from the property line, unless required to be larger by transition or special permit requirements. Decorative materials, including but not limited to plants, shrubs, trees, stone, brick, etc., may be placed in the buffer to delineate the buffer from the parking pavement and to enhance the appearance of the site.