Water-Efficient Gardening and Landscaping . In places with dry climates, there are many native plants that are drought-tolerant. Consider using drought-resistant turfgrass species like tall fescue, zoysiagrass and buffalograss. Perennial flowers conserve water because their roots grow deeper than annual plants and require little or no watering once established. Watering wisely Because most plants can tolerate at least short dry periods, watering should be timed to meet the biological needs of plants.
Soils can absorb only so much water.
Over watering wastes water and can injure certain plants. Home Lawn Watering Guide. Another option in some regions is to allow established cool-season lawn grasses to go dormant during the hot, dry summer rather than irrigating. Drip irrigation systems and soaker hoses deliver water to the intended plants efficiently. Placing containers with 1-inch marks under your sprinkler will help measure how much water you are applying.