A trimmer guard with a body comprising a deck, a skirt, and a first flange. The deck includes an inner side adapted for connecting the trimmer guard to a trimmer； an outer side that is substantially arc-shaped； a first edge arranged between the inner side and the outer side； and a second edge opposite the first edge and arranged between the inner side and the outer side. The skirt extends from the outer side at an angle to the deck. The first flange is arranged at the first edge at an angle to the deck. When the trimmer guard is connected to a trimmer, the deck and the skirt together define a space for housing a rotary cutting tool of a cutting assembly of the trimmer. A plurality of grooves arranged along the first flange are arranged to reduce noise generated by the trimmer during operation.
