Abstract: The invention comprises a watering device for watering gardens and the like without constant attention. The device has a box-like construction and has an L-shaped passageway therethrough with an inlet and outlet for connection between the sprinkler and a source of water at the opposite ends of the passageway. A solenoid operated valve is mounted in the passageway, with a solenoid upon actuation moving the valve to open the passageway. A timer is mounted on top of the box to actuate the solenoid at a selected hour of the day to thereby allow water to flow through the passageway to the sprinkler for sprinkling, which timer will maintain the solenoid actuated for a selected amount of time. A thermostat is mounted to the top of the box which actuates the solenoid when the temperatures reach the danger of frost (35.degree. F.