Installing plastic garden edging is a simple process. Follow these steps:n1. Prepare the area: Remove any existing vegetation or debris from the desired border area.n2. Mark the border: Use a string or paint to mark the desired border line.n3. Dig a trench: Dig a shallow trench along the marked line.n4. Insert the edging: Place the plastic edging into the trench, ensuring it is level and snugly fit.n5. Secure the edging: Use stakes or anchor pins to secure the edging in place.n6. Backfill and finalize: Fill the trench with soil, compact it, and make any necessary adjustments.