An irrigation device comprises a reservoir 12, a water distribution trough 18 communicating with the reservoir 12 and a plurality of outlet openings 20 whereby water from the distribution trough 18 can be delivered from the irrigation device. The reservoir may be ring shaped encircling an aperture 14 through which a plant may grow. The trough may be of annular form encircling the aperture. The irrigation device may further comprise mounting formations 22 for mounting a plant support such as a cane to the device and the mounting formations may be located within the reservoir. Also disclosed is an irrigation device comprising a reservoir, outlet means and a mounting formation for mounting a plant support to the irrigation device.
