A water-saving device includes a frusto-conical housing having a wide lower end that overlies a ground surface. A lip is integrally formed at the upper end, extending radially inwardly. A vertical cut is formed in the housing with a flange adjoining each edge of the cut. The flanges are spaced apart to admit a tree trunk into the hollow interior of the housing and are attachable to one another to enclose a tree trunk. A first pair of apertures is formed in the lip. A conduit has a first end in fluid communication with a row hose and extends upwardly from the row hose, through a first aperture, and downwardly through the second aperture. A water emitter is in fluid communication with a second end of the conduit and is positioned within the hollow interior of the housing below the lip and above the ground surface.