Mowing device (1) for plants, comprising a rotor with a rotor axis or first rotation axis, in particular a vertical rotor axis, and at least one blade (8) rotatably driven by the rotor, in which the mowing device comprises a blade holder (11 a；11 b) for the blade (8), in which the blade (8) is, during normal operation, attached to the blade holder (11a；11b) by a blade pivot pin (10) or shaft which is situated at a radial distance from the first rotation axis so as to be freely rotatably, at least through an angle, in which the blade pivot pin (10) can be displaced radially inwards.
