A guide released on Mar. 10 provides detailed recommendations for homeowners on how to water their lawns effectively, emphasizing that most established lawns require between 1 and 1.5 inches of water per week during the growing season.
The guidance is intended to help homeowners maintain healthy grass by understanding when, how much, and how often to irrigate, taking into account differences in grass type, soil composition, and local climate conditions.
According to the guide, warm-season grasses generally need about 1 inch of water weekly when actively growing, while some drought-tolerant varieties may require less. Cool-season grasses typically prefer between 1 and 1.5 inches per week. Dormant lawns need significantly less—ranging from 0.25 to 1 inch every two to four weeks depending on various factors such as soil and climate.
The document recommends watering deeply but less frequently—one to three times per week—to encourage deeper root growth. Soil type plays a significant role: clay and loamy soils retain moisture longer than sandy soils, which may necessitate more frequent irrigation sessions. The best time for watering is early morning between 6 a.m. and 10 a.m., which helps reduce evaporation and disease risk.
Seasonal adjustments are also highlighted in the guide. In spring and fall, rainfall often suffices for lawn needs with supplemental irrigation only during dry spells. Summer requires more attention; warm-season grasses grow most actively then and may need extra water during heat or drought periods, while cool-season grasses might enter dormancy unless consistently watered.
Homeowners are encouraged to observe their lawns closely for signs of both under- and overwatering—such as color changes or squishy turf—and adjust schedules accordingly. For those uncertain about specific requirements based on grass type or regional conditions, consulting local cooperative extension agents or lawn care professionals is advised.
