Abstract: A self-propelled irrigator includes a plurality of containers separated by partitions and arranged in a circular pattern about a horizontal axle; a ground-engaging wheel fixed to the axle; a reel rotatable about the axle, a hose wound on the reel, the hose having a free end adapted to be connected to a stationary water supply source and having a second end; a water outlet in communication with the second end of the hose, the water outlet being carried by the irrigator above the containers for filling each container with water when it is in an uppermost position, the containers being constructed and arranged to release water during movement of the filled containers past their lowermost position and the hose being wound on the reel in such a manner that upon movement of the irrigator resulting from filling of the uppermost containers the reel rotates about the axle in a direction to unwind the hose from the reel.