What is the proper way to water a lawn?


What is the proper way to water a lawn?


Most lawns in Iowa require 1 to 1½ inches of water per week.  When watering the lawn, apply this amount in a single application or possibly 2 applications 3 or 4 days apart.  Avoid frequent, light applications of water which promote shallow rooting and lush growth.  Lush, shallow-rooted turfgrass is less drought tolerant.  It is also more susceptible to pest problems.  To determine the amount of water applied by a sprinkler, place 2 or 3 rain gauges within the spray pattern. 

Early morning (5:00 to 9:00 am) is the best time to water a lawn.  A morning application allows the water to soak deeply into the soil with little water lost to evaporation.  When watering is completed, the turfgrass foliage dries quickly.  Watering at mid-day is less efficient because of rapid evaporation and strong winds may cause uneven water distribution.  Strong, mid-day winds may also carry water onto driveways, sidewalks, or streets, wasting considerable amounts of water.  Watering lawns in late afternoon or evening may increase disease problems. 

Last updated on
February 19, 2022