Don't mow during the hottest part of the day So, to keep your lawn green and healthy when it can't get a reprieve from the sun, you want to avoid mowing during the middle of the day when the sun is the most intense. At high noon—and a few hours afterward—your grass is working hard to protect its water supply.

Great: Mowing during mid-morning (8 a.m. to 10 a.m.) Mid-morning mowing is the healthiest for your grass. It meets all the conditions we mentioned earlier: dry grass, cooler temperatures, and enough time to recover.

Never mow wet or frosty grass This can damage your turf and compact the soil. Wait until later in the day when the lawn has dried out or defrosted, or postpone mowing to another day.

It's also early enough to give your lawn enough time to recover before late evening. You see lawns are most susceptible to fungal infection attacks after dark, so don't cut your grass after 6 PM under any circumstances as that will weaken it even further.