Edging keeps grass from overwhelming the curb, sidewalks, driveway and other concrete surfaces next to the lawn. Edging is one of the best ways to instantly make your property look amazing. It creates clean and sharp lines along your driveway and walkways. Over time, debris lands on the concrete and settles next to the blades of grass against it. As time goes by, the grass roots into this debris, and "climbs" up onto the surface. In order to keep curb and other sidewalk and driveway edges looking good, you need to clean away a margin of rooted grass and debris.