How to Properly Water Your Lawn: A Complete Guide

As summer approaches, it’s time to turn on your sprinklers and start a consistent watering schedule. Whether you have ...

By Allyson

October 1, 2024

As summer approaches, it’s time to turn on your sprinklers and start a consistent watering schedul...

By Allyson

October 1, 2024

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As summer approaches, it’s time to turn on your sprinklers and start a consistent watering schedule. Whether you have an in-ground irrigation system or you’re moving sprinklers around by hand, watering your lawn correctly is key to keeping it healthy and green. But how much water does your lawn actually need? Let’s break it down and get your lawn thriving.

The Basics of Lawn Watering

Your lawn needs about an inch of water per week to stay healthy, and this should ideally be delivered through one or two deep watering sessions. When you water deeply, you encourage the roots to grow deeper, which makes the lawn more resilient, especially during hot summer months. You can break this down into:

  •  One session of one inch of water per week. 

  • Two sessions of half an inch of water each. But how do you know when you’ve watered enough? Here’s a simple trick: use a tuna can! It’s about an inch deep, so when it’s filled halfway, you’ve reached half an inch of water. Set a few cans around your yard to ensure even coverage and check how long it takes to reach the desired level.  

Testing Your System

To determine the time needed to apply half an inch of water, conduct a simple test. Place several tuna cans or flat-bottomed containers around the lawn. Turn on your sprinklers and time how long it takes to fill the cans halfway. This helps you measure the water distribution and adjust the timing for even coverage. If it takes 15 minutes to collect a quarter inch of water, double that time to 30 minutes for half an inch. Repeat the process for each zone in your yard to ensure even watering.  

How Often Should You Water?


The frequency of watering depends on the weather and the type of grass you have:

 

  • For cool-season grasses: Water every 3-4 days during normal weather. When temperatures soar above 90°F, consider watering every 2-3 days. 

  •  For warm-season grasses: You can stretch watering intervals a bit since these grasses handle heat better. However, keep an eye on your lawn and adjust if needed. Always aim for infrequent, deep watering rather than frequent, shallow sessions. This helps the roots grow deeper and makes your lawn more drought-resistant.  

Optimizing Your Watering Technique

Different types of sprinklers deliver water at different rates:

  • Oscillating sprinklers take longer to water an area evenly.

  • Impact sprinklers cover more ground and may require less time. Since water pressure and sprinkler type vary, it’s important to test your system. Set out your tuna cans, experiment with your sprinklers and time how long it takes to fill the cans to half an inch. Don’t forget to invest in a rain gauge! It’s a simple tool that tracks how much rain your lawn is receiving. If it rains an inch in a week, you can skip watering altogether.
Best Time to Water Your Lawn
The best time to water is early in the morning. This allows the grass to absorb water before the sun gets too hot, minimizing evaporation. If morning watering isn’t an option, try to water early in the evening, allowing some time for the grass blades to dry before nightfall. Avoid watering in the middle of the day when the sun is strongest—much of the water will evaporate before it can soak into the soil.
Pro Tips for Watering Success

Here’s an easy acronym to remember when watering your lawn: D.I.E.T.

  • D – Water Deep: Aim for one inch of water per week.

  • I – Water Infrequently: Water once or twice a week, rather than daily.

  • E – Water Early: The best times are early morning or early evening.

  • T – Use a Tuna Can: It’s a simple way to measure how much water you’re putting down.
Final Thoughts

Watering your lawn doesn’t have to be complicated, but it’s important to do it right. By following these guidelines and testing your system, you’ll keep your lawn healthy, lush, and green all summer long. Whether you’re using a fancy irrigation system or just moving sprinklers by hand, a little bit of planning and care goes a long way. Happy watering!