Plastic edging is used around landscape areas to keep grass from growing into them and keep landscape material such as mulch or rocks from mixing together. Plastic edging is not difficult to install, but does require a little hard work. The part of the edging that goes below ground will keep surface and shallow roots like grasses from growing across to plant beds.
Dig a 6-inch trench with your shovel around the landscaping where you want the edging.
Put the plastic edging in the trench. The bottom of the edging will have a folded-up edge. This needs to face the landscaping.
Attach connection pieces if you need to add a second strip of edging. When you reach back around to where you started, cut the edging so that it meets with the beginning piece. Use a connector to attach the two ends together. Make cuts with a knife.
Make sure the top round circle of the edging is only half above ground. Tap the stakes through the edging and into the lawn area to secure it in place. Put the stake just above the turned-up end at the bottom of the edging. Make sure the bent end of the stake is pointing down.
Water the trench with a hose to make the soil settle. Cover the trench with the loose dirt that you dug up in the beginning. Water again.