A soil cultivating machine or rotary harrow has a row of tined soil working members that are driven about upwardly extending shafts. Further soil working or cultivating members between the driven members are mounted for free rotation about axes also located in the same row which extends transverse to the direction of travel. The further members have tines or blades that are supported on respective arms that extend forwardly and are journalled on vertical shafts at the front of a frame portion. The arm of a pair of blades or a pair of freely rotatable tined members is pivotable to and fro between limit stops to avoid obstacles in or on the ground. The tined members are freely rotatable about upwardly extending axes and the bladed members are freely rotatable about horizontal axes to assist in shedding weeds and other debris.