Abstract: An irrigation apparatus for controlled watering of large plants, such as trees, shrubs and the like includes a hose connection for connecting to a garden hose or the like, a control valve for adjusting the flow of water through the apparatus, a manifold connected at one end thereof to the valve and also being flow connected to a pair of tubular arms and a pair of weights attached to the tubular arms at distal ends thereof. The tubular arms are flexible and adapted to wrap around the base of a tree or the like and are held in place against thermal expansion or water pressure acting within the tubular arms by the weighted ends. The tubular arms also have a plurality of spaced apertures along upper sides thereof. The valve has two flow apertures, one of which provides fixed relatively low flow and the other which is adjustable to provide for variation in water flow.