A healthy lawn makes a very good filter for absorbing many things that can be washed into our streams, rivers and lakes. The ideal lawn is one that will grow best in your environment without lots of supplemental watering. We have all probably read about people living in desert areas trying to grow lawns that require almost daily watering just to survive the summer heat. This is extremely foolish and shortsighted. Turfgrasses were never intended to grow everywhere. However, there are parts of the country where various turfgrasses grow well without the need for daily watering. In many places, grass can be grown without any supplemental watering, or only very minor supplemental watering. The following information is specifically intended for those areas.
In general, turfgrasses need about 3/4”–1” of water per week to maintain green color and active growth. However, during certain times in the summer when high temperatures are the norm, you should allow lawns to naturally slow down in growth during those extreme conditions. You may let the lawn go almost completely dormant in hot weather. Many factors, such as the soil and weather, have a role in the lawn’s water needs. Here are a few guidelines to follow: