6 tips to grow greener grass
If you water frequently and for short periods, the grass has no reason to grow long roots. Shallow roots can’t reach nutrients deep in the soil, or deliver extra water when the surface is dry.
Water deeply enough to penetrate the soil to about 100 or 150mm deep. Use a spade to check the water penetration and get an idea of how long and how often to water for your local soil type and weather conditions. When you know how long the lawn needs, set up sprinklers and connect a timer.
Heavy clay soils should be watered less often and less intensely but for longer periods of time. Sandy soils, on the other hand, can handle heavy, fast watering but also dry out more quickly.