The Q&A Archives: Dry Lawn (spots)

Question: A week ago we got grass put in our yard along with a sprinkler system. About the third day I noticed that they are dry spots on the lawn. What can I do for those dry spots to disappear? We water our grass 3x a day. Is there anything I can buy so my grass won't dry out?


Answer: If you're getting dry areas in your new sod, it either indicates that the roots are not making good contact with the soil (perhaps there's a low spot beneath the sod), or your sprinklers are not reaching the dry areas. I'd check the sprinkler output in the dry spots. Put some tuna cans out on the lawn and turn on the sprinkler. Leave it on for 15 minutes, then check the water level in the cans. If there's not an inch of water in the cans, turn the water on again and continue to time how long it takes to get one inch of water in the cans.

To have the healthiest, greenest lawn possible, water deeply once a week (twice if the weather is really hot) to force the roots to penetrate deeply. Deep rooted grasses don't need as much water as those that are shallow rooted, and won't turn brown as easily. (Frequent, light watering will keep the roots close to the surface, making them dry out faster in warm weather and require even more frequent watering.) It's best to measure the amount of water your sprinkler puts out so you'll know how long to keep the water running.

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