Overwatering A Lawn is Possible

As the weather heats up, you might think that your lawn needs as much water as possible to survive the summer and grow properly. Can you overwater a lawn in summer?

Water Longer and Less Often

It may seem counterproductive, but you only need to water once or perhaps twice a week in many situations. If you try to set your sprinklers so that they water a little daily, the roots get lazy and stay near the surface so that they can grab the water there. If the weather is especially hot and you do not water, the grass is now prone to scorch and other problems.

When you water longer and less often, it trains the roots to go deeper into the ground. In times of drought, there is a greater chance of your grass being able to find some moisture since the roots are longer and more widespread.

Plants Can Drown Too

If your lawn is continually wet, your grass might drown. Plants actually do take up oxygen from the soil as part of their respiration. If the roots sit in water for a long time, they cannot get the oxygen that they need and can end up effectively drowning.

Too much water surrounding the roots for an extended time can also lead to problems like root rots and other fungal diseases. Fungi are especially drawn to moist areas and thrive there.

How Much SHOULD You Water, Then?

Cornell University here in New York suggests that all you need on average is an inch of water per week. You can experiment with your sprinklers to see how long you need to water to achieve that goal using a device like a rain gauge or simply collecting water in a can. You also need to examine how your soil absorbs the water to make sure it’s not being applied too fast.

How is your grass holding up this summer?

Image by fabola under a Flickr Creative Commons Attribution-ShareAlike License