The proposed use as depicted on the plans for subdivision or land development includes adequate proposal for landscaping in addition to any requirements otherwise imposed by this chapter, Chapter 274, Natural Resources Protection, or Chapter 400, Subdivision and Land Development, in areas such as the entrances, along property boundaries, in areas which are highly visible, such as along roads, walks or trails, and in other places reasonably deemed necessary by the Supervisors, where the use of trees, shrubs, and ground covers would be functional and appropriate.