April 3, 2012
The slacker’s guide to a great lawn [Consumer Reports May 2012] – Frank Rossi (right) on the now debunked rule-of-thumb that you should never cut more than one third of the grass blade when mowing: “It was inspired by research conducted in the 1950s by scientists at the U.S. Department of Agriculture who were evaluating Kentucky bluegrass as a forage grass. If you’re feeding cows, the one-third rule will give you the most rapid leaf production. But if your goal is a good-looking lawn, we’re now saying it’s OK to take more off.” Most grasses thrive even when half or more of the blade is removed. That means you can mow less often, saving time and fuel, Rossi points out.