The mower is cutting unevenly or leaving patches

The blade may be dull or damaged, as mower blades naturally wear down over time. It’s recommended to replace the blade every 12–18 months because impacts with dirt, small rocks, sticks, and general use gradually reduce its sharpness.

Dull blades tear the grass instead of cutting it cleanly, which can leave the lawn looking uneven and stressed. This can also make the grass more susceptible to disease and browning.

You can watch the video below to learn how to change your mower blade safely. It provides a step-by-step guide that makes the replacement process easy to follow.