Check out these simple tips for using water wisely: • Water the lawn only when it needs it. This will result in healthier   plants, reduce weeds and lower pest and disease. Landscapes   are typically overwatered by as much as 20% to 40%. • Buy drought-tolerant or native plants that require less water. • Check the soil moisture before watering. The surface may   be dry, but adequate moisture may be retained beneath   the surface. • Use trickle or drip garden irrigation systems that use 80% to   90% less water than a hose or sprinkler. • Water in the early morning or late afternoon. Watering in the   middle of the day allows most of the water to evaporate. • Water slowly and thoroughly rather than frequently to   encourage root growth. Too much water can overload the soil   so air cannot get to the roots. • Use plenty of mulch or compost to promote water retention in   grass and flower beds. • Mow grass at a higher level – at least 2 to 3 inches – to reduce   evaporation and root stress. • Avoid fertilizing in the summer, which will increase the need for watering. • Use a mulching mower that leaves grass clippings on the lawn.   This "mulch" helps grass retain water and reduces the amount of   fertilizer needed. • Make sure the sprinkler is aimed at the lawn, not the street or sidewalk. • If you water when it's windy, water will go everywhere but on the grass. For more information, download "Conserving Oklahoma's Water" from the Oklahoma Water Resources Board. Or, check out "Putting Down Roots," a tree selection guide from the Oklahoma City Planning Department. For more tips click here: http://www.epa.gov/watersense