Shorter grass doesn’t mean healthier grass. Your grass shouldn’t be cut too short; taller grass actually helps to keep the soil healthier. Allowing your grass to grow just a little bit higher lets the grass get more light during peak sun hours and allows the plant to convert this light into more nutrients for the roots and surrounding soil.
Here are some best practices for mowing the lawn:
Avoid mowing your lawn when it’s wet.
Set your mower blades to 3 ½ to 4 ½ inches. One of the most common mistakes a homeowner can make is mowing the lawn too short.
Mow your lawn often to avoid removing more than ⅓  of the grass height each time.
Maintain sharp mower blades to avoid shredding your grass instead of cutting it. We recommend sharpening your blades every 3 to 6 mowings.
Try not to cut your grass during the heat of the day. This can dehydrate your lawn, causing it to turn brown.
Don’t let grass clippings go to waste. Leave the clippings on the lawn to provide extra moisture and shade. Do not allow them to bunch together as it can suffocate the grass underneath.