There are good times of day to water and bad times of day to water. If you have to use water on your lawn and garden, then the early morning is the best time to do that. If you have a timer on your watering system, setting it to turn on as early as possible is the best. If you have a member of your family getting up to shower at 6 AM, then you should make sure the watering is done by then, even if that means setting the timer to 4 AM. The worst time of day to water is from noon through the rest of the afternoon. This is the hottest time of day and you will lose water to evaporation, more than any other time of day. By watering in the heat of the day you are wasting water and money. Do yourself and your lawn a favor, and water early and infrequently.
A Time to Water April 13, 2010