A head (1) for a hedge trimmer comprising a main body (2), having a disc-shaped conformation, which can be connected to a drive shaft of a hedge trimmer to be placed in rotation about an axis of rotation (X). The main body (2) has at least one pair of primary seats (5) and one pair of secondary seats (6), each primary seat (5a) of the pair of primary seats (5) and each secondary seat (6a) of the pair of secondary seats (6) is a through seat. The pair of primary seats (5) is adapted to house a primary segment (S1) realised with a first cutting wire and arranged in a U-shaped arrangement between the primary seats (5a). The pair of secondary seats (6) is adapted to house a secondary segment (S2) realised with a second cutting wire and arranged in a U-shaped arrangement between the secondary seats (6a). Each primary seat (5a) of the pair of primary seats (5) has a primary transverse dimension (D1) and each secondary seat (6a) of the pair of secondary seats (6) has a secondary transverse dimension (D2).
