June 15, 2011 - What’s the correct mowing height?
We always get asked, “how long should I wait before cutting my lawn?” According to the Cornell University Cooperative Extension, cutting the lawn with a lawnmower set at a proper mowing height can save you from having to bag your grass clippings, even if you don’t own a mulching mower. The rule of thumb suggested by the Cornell Extension is, “Mow when your grass is dry and 3 to 3-1/2 inches tall. Never cut it shorter then 2 to 2-1/2 inches or remove more than one third of the leaf surface at any one mowing.”
The idea behind this mowing tip is that the valuable nutrients in the grass clippings can do your lawn some good, left right where they lie after cutting — as long as their bulk is kept at a minimum. By following this rule of thumb and cutting only about an inch off the top of your lawn at any one time, the bulk of the grass clippings is kept low and your lawn will love you for it.