Abstract: A lawnmower trimming and edging extension is attached to a lawnmower. The lawnmower has a motor, a deck, and a push handle. The lawnmower extension includes a trimmer motor having a shaft and a self-feeding string trimmer cutter coupled to the shaft. The trimmer motor coupled to the deck and oriented the self-feeding trimmer cutter to cut an area about the deck. The trimming extension controls electrically connects the trimmer motor to an electrical power source and the trimming extension controls. An outside protective plate is coupled to an inside protective plate by a trimmer-edger hinge and to the deck. The trimmer-edger hinge pivots the inside protective plate between a horizontal position and a vertical position. The trimmer motor is coupled to the inside protective plate such that is self-feeding trimmer cutter is oriented as the inside protective plate when it pivots between the horizontal position and the vertical position.