Abstract: An irrigation apparatus provides water to one or more plants growing in a growing medium contained in a pot or tray. The irrigation apparatus includes a water container mounted to a base below the tray for vertical movement between an upper position and a lower position, in which the water container is urged toward the upper position. Also included is a water supply for supplying water to the water container, the water supply including a control valve having an open and a closed position for permitting and preventing flow of water into the water container, respectively, the control valve closes when the water container is in its lower position. The arrangement is such that when the water container contains water and is in its lower position, the surface of the water in the water container is at a predetermined distance below the underside of the tray supported on the base.

Abstract: There is described an irrigation apparatus for providing water to one or more plants (1) growing in a growing medium (3) contained in a pot or tray (4), the irrigation apparatus (6) comprising: a water container (9) mounted to a base (7) below the tray (4) for vertical movement between an upper position and a lower position; resilient means (10) mounted to the base (7) to urge the water container (9) toward the upper position; water supply means for supplying water to the water container, the water supply means including a control valve (12) having an open and a closed position for permitting and preventing flow of water into the water container (9), respectively; and operating means mounted to the water container (9) and operable to close the control valve (12) when the water container is in its lower position; the arrangement being such that when the water container (9) contains water and is in its lower position, the surface of the water in the water container is at a predetermined distance below the under