With day time temperatures dropping already, you might be wondering when it’s OK to stop mowing. The answer is: regardless of the temperature, as long as your grass is still growing, it still needs to be mowed.
However, there will come a day when it’s obvious that your turf grass is no longer growing. That is usually sometime in November, but it all depends on how cold the nights and days become. If warm weather persists late into November, then your lawn might still be growing into December. If cold temperatures creep in like this year, then early November might mark the end of the growing cycle. Whenever that happens you’ll want to make one last cut before you put your mower away for the year.
The last cut should be a good bit shorter than your regular summer mowing height, maybe around 1.5″ – 2.0″ The lower blade height will help keep the grass blades from collapsing into a dense mat that can promote certain fungal diseases that might show up next spring.
Steps to be taken before putting your mower away for the season vary depending on manufacturers recommendations. Usually it is better to keep some fuel in the tank, but add a fuel stabilizer to prevent it from turning rancid over the winter. Other recommend completely draining the tank in a safe manner. Consult your owner’s manual or your local lawn mower repair company for specific advice.