The present invention relates to a distribution box (1) for a single-seed drill, comprising a perforated disc (2) mounted in rotation about a rotation axis (7) in order to select seeds in a manner assisted by a flow of air, said disc (2) separating said seeds from the flow of air and having perforations (3) disposed at regular intervals around at least two concentric circles (9, 10) located close to its edge, said perforations (3) of said two circles (9, 10) being angularly offset from one another and having a size appropriate for the seeds to be planted. The box is noteworthy in that said disc (2) is provided on its periphery with stirring blades (13) that are regularly spaced and angularly offset with respect to said perforations (3), said stirring blades (13) extending between two circles (9, 10). The present invention also relates to a single-seed drill using a distribution box according to the invention.