General Lawn Watering Basics
In the southeast region the best practice of watering your lawn is on an as-needed basis. In this method, your lawn is watered throughout the growing season when natural precipitation is inadequate to support active growth and maintain green color. The presence of an adequate quantity of water during summer is the environmental factor that determines whether a lawn is green and growing or brown and dormant. Thus, supplemental irrigation is essential during many summers to maintain green, actively growing lawns.
Cool season lawn grasses—bluegrasses, ryegrasses, fescues, and bentgrasses—require approximately 1 to 1 1/2 inches of water per week during the growing season to maintain green and active growth. Even when they are watered, however, the growth of cool season lawn grasses slows during summer’s hot, dry weather because environmental conditions are not within the optimum range for turfgrass growth.
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