Using a ruler, measure the depth of the water and divide by three. This gives the amount of water your sprinkler supplies the lawn in one hour. If the lawn needs water badly, any time will do, but whenever possible water early in the day, rather than evenings, as late watering can encourage the spread of fungus disease. Footprints in lawn. Grass beginning to need water does not spring back after being stepped on.
Footprints remain clearly in the lawn, which indicates that watering is needed.
If your community imposes watering restrictions, remember that a little water is better than none. So water whenever allowed. Following a good season-long fertilizing program helps grass develop a sturdy root system, so the grass can take full advantage of whatever water is available. Watering new seedings Improper watering is one of the most common causes for seeding disappointments. The seed bed must be kept moist to cause grass seed to germinate.