Abstract: The grass trimming apparatus includes an elongated frame structure having a front base portion and a rear handle portion, a single ground engaging wheel adjacent the rear end of the base portion, and a motor and cutter unit assembly on the forward end of the base portion. The lower portion of the motor and cutter unit assembly is located within the transverse confines of the base portion so that only flexible cutting elements on the cutter unit extend laterally outwardly from below the base portion during a grass trimming operation. The frame structure is longitudinally and laterally tiltable on the single wheel support and at least one hand grip on the handle portion of the frame structure is adjustably movable to a position within the transverse confines of the frame structure to provide for a maximum efficiency of the apparatus in trimming lawn adjacent wall structures, headstones, fences and the like.