Watering lawns every day is necessary to keep it looking green.
Watering your grass daily is not only a wastage of water but also unhealthy for your lawn because if the grass stays wet for too long, it becomes more susceptible to diseases and insects. Although there is no single correct way to water, rich organic soils will certainly need less water than sandy or clay soils. It's a good practice to water your grass once a week for a long period of time in order for the water to seep in. If you have a sandy soil (test it with a soil pH meter to find out), you may have to water twice as much. It is true that water is critical to the health of grass. Without enough water, grass can't get the nutrients it needs for reproduction and growth.