Garden Irrigation Controllers are devices used to control the amount of water being used by the plants in your garden. Irrigation is a vital part of the growth process of all plants and is usually the main factor that determines the final yield of any crop that you grow. In dry climates, it can be difficult to get your plants to grow to the extent that they need to for your purposes, especially if you have had a dry spell and the soil is still not ready for planting. You can increase the yield from your crops to make sure that they get enough water, whether it is a trickle or an entire flood.
A garden irrigation controller can help you get more from the water they provide to your plants. The larger the area of your garden that you are trying to irrigate, the more complex the system that you will need to install. Typically, a controller will be able to handle anything from a lawn to a lake, though some models will also be able to handle outlying areas such as the driveway or the patio outside your home. They will be able to adjust the amount of water used based on the size of whatever area they are attempting to irrigate.