grass - Knowledgebase Question

Alta Loma, Ca
Question by mbarndollar
October 5, 2010
We have marathon 1 grass and we have sprinkler system. We are watering 4 days a week for 6 minutes each time. Is this sufficient?


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Answer from NGA
October 5, 2010

0

It's difficult to judge whether or not your lawn is getting adequate water because water pressure and sprinkler types can make a big difference in the amount of water they deliver. In general, most lawns need about one inch of water per week. It's better to water for longer periods of time once a week during the fall, winter and spring, and twice a week during the summer months than to water every other day. Try setting some empty tuna or cat food cans around the lawn and then turning on your water system as usual. When the water goes off, check to see how much water has collected in the cans. There should be a half inch. If so, your watering schedule is just fine. If you've collected less than a half an inch, keep your sprinklers on for a longer period of time. Once you've figured out how long it takes to supply a half inch of water, you'll know how long to run the water. Water twice a week in this way and your lawn will get its required one inch of water per week. The benefit of watering deeply but infrequently is that the roots will follow the water deep into the soil and the grass will become more drought tolerant when it has a deep root system. Good luck with your lawn.

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