With all of this hot weather, we might think we need to water our lawns every day to prevent it from burning or dying, however, we may be actually hurting our grass in the long run by doing so. The best way to irrigate an established lawn is on an as-needed basis.
Grass blades will begin to wilt (which involves the blades folding, turning bluish-green, and not recovering from foot traffic) as moisture begins to be depleted in the soil. If 30%-5o% of the lawn shows signs of SLIGHT wilting, it is then time to irrigate with approximately 1 inch of water. The turf should not be watered again until it shows signs of wilting. The best way to water is to mimic the natural environment. Think about a normal rain shower, it will rain hard for a little while, and then stop. A few days later, the same thing will probably happen. Keep that in mind when determining how much water to use on your lawn.
This irrigation schedule works for any soil type. Proper watering practices will help maintain a lawn that requires less mowing and has little thatch buildup. Proper watering will also help develop a deep root system and foster plants that are less susceptible to damage by pests and environmental stresses. To explain, when a plant becomes "thirsty" the roots go on a mission to look for more water. This causes the plant to dig a little deeper, which in turn, helps the plant to become stronger when it does get the water it needs.
A deep root system will help prevent hard damage to the grass in the winter time, where as watering your lawn everyday creates a shallow root system which, in turn, will cause the lawn great distress in the winter time, and make it harder for the grass to return from dormancy the following Spring.
(Photo Of Wilting Grass)