The landscape plan, if required, shall specify locations of all mature shade trees or other species of six-inch caliper or greater and indicate existing vegetation to be removed or preserved. It shall demonstrate how building materials, colors, and textures will be blended with the natural and man-made landscape. It shall also include visual depictions of the proposed landscape from the perspective of persons who will view the site from the highway or adjoining properties. Specific locations, varieties, sizes, winter hardiness, and schedules for all proposed plantings shall, too, be provided as part of the plan.