Condition the soil with mulch or compost before planting grass or flowerbeds. Water will soak in rather than run off. Fertilize lawns at least twice a year for root stimulation, but do not over-fertilize. Grass with a good root system makes better use of less water and is more drought-tolerant. Do not scalp lawns when mowing during hot weather.
Taller grass holds moisture better.
Use a watering can or hand-water with the hose in small areas of the lawn that need more frequent watering. Use water-wise plants. Choose plants that have low-water requirements, are drought tolerant, and are adapted to the area of the state where they are to be planted. Consider decorating some areas of the lawn with wood chips, gravel or other materials available that require no water at all. Do not sweep walks and driveways with the hose.