In general, ten minutes of watering per session (morning and evening) will provide enough water to keep the top couple inches of soil moist. As your new grass seed grows and flourishes, you can water deeper and less frequently this will encourage established grass roots to extend deeply into the soil.

New turf may require watering twice a day for the first week, then 2-3 times a week, then, after 3-6 weeks, once a week. Once your turf is established, it is best to water it well before noon, so it will dry off before evening.

Your lawn needs at least 1-1 ½ of water per week, year-round, during the winter, too. Water deeply 2-3 times per week, rather than daily. Water as early in the morning as you can, when possible. If you can't push a 6 screwdriver into your lawn, you're not watering enough.