A truly efficient way to use water in a yard is to design the yard so that it thrives predominantly on rainfall. Even if your yard has a lawn and specialty gardens, it is possible to design it as a Carolina Yard in which you can water the plants “as needed.”
However, even an ideal landscape design can be over-watered. That’s why many of the actions in this section deal with sprinkler systems. It’s extremely important that each irrigation zone is set to meet the needs of the plants in that area. For example, a lawn in full sun will demand more frequent irrigation than an established plant bed of shrubs and groundcovers.”
If you water your landscape when it doesn’t need any, or apply too much, you might end up encouraging weed growth, increasing mowing time, stimulating disease outbreaks, and raising your water bill!
Put a rain gauge in your yard and start tracking rainfall. You will soon notice how much rain is falling on your landscape. Overtime, you will be able to determine if your plants need water partly based on how much rain is in your gauge!