Gardening automatic irrigation device

The utility model relates to the technical field of gardening, and provides an automatic irrigation device for gardening, which is high in applicability to higher plants and comprises a water storage tank, a moving trolley is arranged at the bottom end of the water storage tank, a water storage opening is formed in the top of the water storage tank, a filter component is arranged at the water storage opening, and the bottom of the side wall of the water storage tank is communicated with a drainage pipe. A valve is installed on the drainage pipe, a control pump and a supporting frame are installed on the top of the moving trolley, the water inlet end of the control pump is detachably communicated with the water storage tank in a sealed mode through a flange, a supporting plate is longitudinally installed on the supporting frame in a sliding mode, and a first limiting assembly is arranged between the supporting plate and the supporting frame; and a spraying pipe is detachably installed on the supporting plate t