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Extension > Garden > SULIS > Maintenance > Sustainable Lawncare Information Series > Watering Practices > Timing of Water Applications

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Timing of Water Applications

The most efficient time to water lawns is early in the morning from 4 to 8 a.m. Less water is lost to evaporation due to lower temperatures and less sunlight. Also, wind velocities are usually lower than they will be later in the day so distribution is improved. Water demand on municipal systems is usually less at that time as well. 

Midday watering, though good for the plants since it cools them and reduces heat stress, is not as efficient because some of the water evaporates before getting into the soil.

Watering into the late evening should be avoided if possible. If grass plants go into the night time hours wet, they will remain wet for extended periods of time. This frequently favors the growth and development of turfgrass diseases.

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