Irrigation system with automatic irrigation liquid spraying device, comprising: - a container, particularly for plants or flowers, the container being equipped with a perforated bottom; - a bottom support on which the perforated bottom of the container is placed; - at least one floater equipped with at least one magnet and placed in the support; - at least one electromechanical reed-type device operatively connected to the support and adapted to be actuated by the at least one magnet through a contact action of the reed blades driven by a magnetic field of the magnet; - a tank containing irrigation liquid; - at least one pump immersed in the tank, operatively connected to the container on a side and to the electromechanical reed-type device on another side, the pump being adapted to pump irrigation liquid from the tank to the container upon closing the reed blades with the magnet when there is no irrigation liquid in the support and the magnet is in operating contact with the reed-type device, the pump being adapted to stop pumping irrigation liquid from the tank to the container upon opening the reed blades when there is irrigation liquid in the support so that the floater with its magnet moves away from its operating contact with the reed-type device; and - at least one small air pump, which serves both to enter air from a bottom trap of the support and to force water coming from the immersion pump into a water passing tube, with a closed circuit, water coming from the immersion pump being thereby dragged by air coming from the air pump, and the acquisition of some kinetic energy allows creating a spray-type delivering device when water, upon exiting, strikes a surface on which it flows, the delivering device being activated by entering air in the duct of liquid coming from the immersion pump. - a container, particularly for plants or flowers, the container being equipped with a perforated bottom; - a bottom support on which the perforated bottom of the container is placed; - at least one floater equipped with at least one magnet and placed in the support; - at least one electromechanical reed-type device operatively connected to the support and adapted to be actuated by the at least one magnet through a contact action of the reed blades driven by a magnetic field of the magnet; - a tank containing irrigation liquid; - at least one pump immersed in the tank, operatively connected to the container on a side and to the electromechanical reed-type device on another side, the pump being adapted to pump irrigation liquid from the tank to the container upon closing the reed blades with the magnet when there is no irrigation liquid in the support and the magnet is in operating contact with the reed-type device, the pump being adapted to stop pumping irrigation liquid from the tank to the container upon opening the reed blades when there is irrigation liquid in the support so that the floater with its magnet moves away from its operating contact with the reed-type device; and - at least one small air pump, which serves both to enter air from a bottom trap of the support and to force water coming from the immersion pump into a water passing tube, with a closed circuit, water coming from the immersion pump being thereby dragged by air coming from the air pump, and the acquisition of some kinetic energy allows creating a spray-type delivering device when water, upon exiting, strikes a surface on which it flows, the delivering device being activated by entering air in the duct of liquid coming from the immersion pump.