 Yeah, when you're watering your lawn and your garden, you only want to water when it's needed. So depending on the weather or type of plants or turf, you might find that you only need to water once or twice a week. Now, when it comes to the time of day to water, you do want to water early in the morning or way later in the day. Because if you water when the sun is low, that's going to help you minimize evaporation.