A plant guard (10) that may be used to deliver water to a plant adjacent to which the guard is positioned. The plant guard (10) includes a hollow tubular body (11), adapted to contain water, the body (11) having a length, measured between two ends of the body (24 and 25) or around its periphery if it is annular, a width, measured between a pair of spaced apart walls (16 and 17), and a height, measured between a lower edge (13) and an upper edge (15), the height of the body being very much greater than the width of the body and being less than its length; an aperture (12) to permit the addition of water to the body (11) adjacent its upper edge (13); and water release means (14) adjacent the lower edge of the body (15) to permit the delivery of water in a controlled manner to a plant surrounded by the guard (10), the body (11) being so formed that it may be maintained with its lower edge (15) on the ground adjacent a plant and its walls (17 and 17) rising substantially vertically from the ground by vertically extending supporting means (23).