A “Greener” Lawn (With Less Water)
More than 50% of residential water use takes place outdoors. So, one of the best ways to conserve water is to reduce the amount of landscaping required to maintain your yard. And Spring is the perfect time to plant!
— Xeriscape. Given how labor and water intensive maintaining a lawn can be, why not opt for a yard that's grass-free? Some alternative ground covers that require little mowing or watering include Yarrow, Alyssum, Thyme, and Sweet Woodruff. Before planting, check with a local nursery to make sure the option you choose can tolerate your local climate conditions.
— Water deeply but infrequently. Grasses do best when the whole root zone is wetted and then dries out between waterings. Avoid frequent shallow watering that causes poor root development. Overwatering also promotes lawn disease. Water in the early morning, when temperatures are cooler, to minimize evaporation.
— Use regionally appropriate, low water-using and native plants in landscaping. Once established, these plants require little water beyond normal rainfall. Also, because native plants are adapted to local soils and climatic conditions, they rarely require the addition of fertilizer and are more resistant to pests and diseases than are other species.
— Check your sprinkler system regularly and adjust sprinklers so only your lawn is watered and not the house, sidewalk, or street. Also, be sure to check if your city or county has any drought-related local watering restrictions.
— Collect and use rainwater for watering your garden with a rain barrel or direct downspouts or gutters toward shrubs or trees.
— Install a drip irrigation system around your trees and shrubs to water more efficiently.
For more green tips, https://www.epa.gov/watersense.