Edging is designed to prevent erosion and to stop weed seeds from entering a garden. Among the choices for edging in a landscape include cement, plastic and metal. Metal edging comes in steel or aluminum varieties. Although aluminum is not as durable as steel edging, it is lighter and more flexible, which makes it easier to install in a curved bed. Aluminum is also less expensive than steel edging.
Lay out your bed’s edge with a garden hose to determine the path of the edging.
Mark the edging location with spray paint.
Measure the edging length with a tape measure.
Assemble aluminum edging pieces. Aluminum edging pieces are manufactured in 8-, 10- and 16-foot lengths. The pieces may be assembled by overlapping the ends and using anchor pins that come with the edging.
Shorten edging pieces using tin snips.
Dig out the soil over the path you will place the edging using a garden spade. The channel that you cut should be ½ inch wide and 5 inches deep.
Insert the edging into the channel. Insert the stakes into the edging and pound them into the channel with the hammer.
Fill the channel on both sides of the edging with ½ inch of sand to promote drainage around the edging. Fill the remainder of the channel with topsoil. The edging should extend above the soil line no more than ¾ inch.