Proper mowing is one of the most important practices in keeping your lawn healthy. Grasses are like most plants — if you clip off the growing points (for grass, it’s in the crown, where the new leaves develop), the plants branch out and become denser, which in this case, turns thousands of individual grass plants into a tightly woven turf or a lawn. If you didn’t mow at all, your yard would look more like a prairie than a lawn. But the mere act of mowing isn’t what makes a lawn look good. Mowing height and mowing frequency determine how healthy and attractive your lawn looks. After all, cutting a lawn is stressful for the grass. The leaves make the food for the roots — and how would you like it if someone kept cutting off your food?
Height does count
Most grasses have a range of recommended mowing heights. Stay at the upper end of that range when the lawn is under stressful conditions, such as hot weather or drought, or if you have a shady lawn. In cooler weather, you can cut the grass a little lower.
Follow the one-third rule. For a thriving lawn, never cut away more than one-third of the grass blade in any one mowing. If the grass “gets ahead of you” because of wet weather or your busy schedule, move up the cutting height of your mower to the highest possible setting and mow. If clippings are too long and heavy, even at that cutting height, catch them with the bagging unit or clean up after mowing with a leaf rake. Then move the cutting height back to your normal range and cut the lawn again a few days after that first mowing.