A turf edger is attached to a traction unit in the form of a self-propelled turf grooming or working vehicle. The turf edger has a narrow U-shaped edging blade carried on an edger frame. The edging blade oscillates to cut and free a strip of material along a boundary between a turf surface and a non-turf surface. When this strip of material is brushed away, a clean edge is provided along the boundary without the need for any manual hoeing. Side walls of the edging blade at least partially nest around a ground engaging roller on the edger frame to more easily cut horizontal grass runners in the turf surface. The edger frame is selectively movable between a lowered edging position and a raised transport position by the operator. Limited ground following action is provided for the edger frame when the edger frame is in the edging position.