In our area, most professional landscapes don't use any edging. Just a good, deep 'shovel edge' put in with a shovel or a power bededger. Sometimes, to prevent root run or contain an area of decorative rock, edging will be installed, usually aluminum with anodized finish. Several brands are available. One is Sure-loc. It comes it 16'lengths. Sometimes a local re-wholesaler will carry it which is a good way to buy just a few pieces to try it out.<p>----------<br>Lanelle<br>