Keep your lawn green and healthy with adequate water delivered on a regular schedule. As the amount of water needed varies based on climate, type of grass, soil composition, and rainfall, research online or ask the local garden centre for quantity and frequency recommendations for your area.
Measure the amount of water delivered to the lawn by placing several open containers four to six inches in diameter within range of the sprinkler. Time how long it takes the containers to fill to the level of water required in your area.
[credit: Matt McGee]
As it is common for sprinklers to deliver water unevenly, note variations in the amount of water in the cans and adjust the watering schedule accordingly. To ensure a green lawn, calculate the watering time based on the slowest filling container. If the cans are placed within the sprinkler area but off the grass, leave them in place to measure rainfall, as well. Check the amount received after each rain and provide supplemental water to the lawn, as needed.
Generally, a healthy watering schedule consists of watering to the optimal depth twice each week. Water the lawn in the early morning hours, if possible, to reduce the amount of moisture lost to evaporation. An early morning watering schedule allows the moisture to seep deep into the soil, which encourages vigorous root growth and is a much more efficient use of water. Avoid watering during the evening hours to discourage fungus growth and root rot. Also, apply a lawn-specific fertiliser according to the manufacturer’s instructions to keep the lawn in top condition.
