3 | Lay the edging into place
As rolled up, the strip should curve away from the lawn side of the trench. If there is a V-shaped lip at the base of the edging, this needs to be on the flowerbed side. Use a utility or serrated knife to cut the strip to size. If you are joining multiple strips, make sure each connector is evenly distributed in both pieces of edging, rather than being pushed into one during the connection. The strip should sit in the trench with only the very top visible. When it is set, this will be enough to prevent grass and weed roots crossing into the flowerbed, but not so high that it will get caught on your lawn mower. It will be obscured when the grass grows longer.