Grass and plants have different watering needs. Sprinklers can spray large amounts of water quickly, which makes them ideal for watering grass in a short time throughout the day. Drip irrigation. Slow and deep watering allows plants to absorb the benefits between waterings, which means you can reduce watering. Go ahead, give your irrigation system a break, and set the irrigation clock to water the plants for fewer days than allowed during the seasonal watering restriction. .