If you’re using a power edger, Abbass says you can get the best ... “An alternative way of edging a garden bed is to consider adding plant material such as sedges, small grasses or compact ...

If you're cutting through thick grass or tough soil, a sharp straight-edged spade or half-moon edger ... your lawn edging. Or, you can use the 2-by-4 plank hack to create a sharply-edged bed.