How should I water a newly seeded lawn?

Question:

How should I water a newly seeded lawn?

Answer:

After seeding, keep the upper 1 inch of soil moist by watering once or twice a day.  With adequate moisture and warm soil temperatures (55 degrees Fahrenheit or above), the seeds of most turfgrasses should germinate in 2 to 3 weeks.  Grass seedlings are very susceptible to desiccation injury.  Continue to water the seedlings once or twice a day.  When the grass seedlings reach a height of 1 to 2 inches, gradually reduce the frequency of watering, but water more deeply.  A thorough watering once a week should be adequate for new grass that has been mowed 2 or 3 times.