Abstract: Spare trimmer string can be stored in a trimmer string holder mounted on a trimmer pole via cooperating between a pole nest on the holder and a clamp on opposed sides of the pole. The pole nest supports a hub having spars supporting an annular channel and includes a recess that can include mechanical features to enhance mounting. The holder can be formed from two identical halves, each including respective portions of opposed spars, one respective portion having a projection and the other a recess so that the projection of one is received in the recess of the other.