HOW MUCH WATER DOES YOUR BLUEGRASS NEED?

This article was reprinted with the permission of Colorado Springs Utilities (CSU).  Our thanks to CSU and we hope it helps you.


The high, dry climate of Colorado Springs makes it tough to keep Kentucky Bluegrass green, but maintaining a good-looking lawn doesn’t have to mean applying excessive amounts of water.

MONTHLY WATERING NEEDS IN INCHES PER WEEK:

Jan/Feb: ¼”          Jun: 1 ¼                  Oct: 7/8”

Mar/Apr: ½”           Jul/Aug: 1 ½”          Nov: 3/8”

May: ¾”                  Sep: 1 3/8”             Dec: ¼”

Kentucky Bluegrass thrives on far less water than the average homeowner applies to it.  Bluegrass only needs water every two or three days, not every day! Watering deeply and less often results in a healthier lawn with a deeper root system. Three easy ways to give your bluegrass the exact amount of water it needs are described below.

 
Residential Lawn Watering Guidelines

Method 1. Watering by CSU’s Lawn Watering Guidelines (formerly ET)

This is the most scientifically accurate way to irrigate your bluegrass. This method is best for homeowners who have access to the daily newspaper or the web and are willing to vary their irrigation schedules, as needed every two to three days.Remember, the irrigation requirements published in the Gazette are for Colorado Springs, and reflect the recent rain history in the city, not in the Donala District.

1. Determine your sprinkler’s output rate in inches per hour using the Sprinkler Output Worksheet below.

2. Look up the Lawn Watering Guidelines, published daily in The Gazette on the weather page, as well as on Colorado Springs Utilities’ website here, to find out how much water you need to apply to your lawn today.

3. Use the Sprinkler Runtime Table, to find out how long to run your sprinklers by matching your sprinkler’s output rate (step 1) with the amount of water you need to apply to your lawn today in step 2.

4. Run your sprinkler for the number of minutes indicated in the Sprinkler Runtime Table in step 3.