Repair a lawn edge
Cut out pieces of turf at the edge of the lawn where they’ve become worn or dropped. Make the vertical cuts first and aim for an even shape that has good-quality grass behind the damage, with a thick layer of soil beneath.
Lay the piece of turf out and turn it around so that the good edge forms the lawn edge. Pack soil under the new edge to make it level. Tamp it down and add soil to the gaps before sowing some seed to fill them. Give it a final water to bed it in.