The Flowerhouse Solar Rainmaker Automatic Watering System is a great tool for the home gardener. This system uses the conditions of the sun to adjust watering amounts. It waters every 3 hours and is adjustable for large or small plants. It’s suitable for baskets, pots, beds and more. Amount applied varies depending upon the amount of sunshine and the position of the conrol knob. Adjustable settings for large or small plants. Automatically will apply more water in sunnier conditions, when your plants need it the most. Can supply up to 12 drippers, suitable for beds, baskets, vegetables, pots, grow bags, specimen plants and tree establishments. Supplies enough water for 6 large hanging baskets. Easily mounts to a tree branch, fencepost, or an exterior wall.