green lawn - Knowledgebase Question

San Diego, Ca
Question by preciousblk
August 9, 2009
I have st. augustine grass. How do i keep it green with water conservation? it is burning and dying out.


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Answer from NGA
August 9, 2009

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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. 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. This will let your know how long you'll need to water to supply one-inch of water per week to your lawn. Best wishes with your lawn.

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