In general, that means digging a trench around your garden bed that is about 4 inches deep and 4 inches wide, or wider, depending on the dimensions of your edging material. This is deep enough to ...

Precast concrete flower bed edging stones are easy to install. Lay out the shape of the bed with a rope or garden hose, then use a flat-blade spade to make a trench. Cut into the ground along one ...