When Should You Sharpen Your Mower Blades

Keeping Your Mower Pristine

Blade sharpening is a task that shouldn't be dictated by the calendar but by usage. After 20 to 25 hours of mowing, which for the average homeowner means once per season, your blades typically require sharpening. This is a general guideline, but the true indicator is the quality of the cut. Dull blades tend to tear the grass rather than slice it, leaving jagged edges that compromise the lawn's health and appearance.

To determine the perfect timing for blade sharpening, keep a log of your mowing hours. When you approach the 20 to 25-hour mark, prepare for sharpening. If you mow for an hour weekly, sharpening your blades every 25 weeks is a good rhythm. This calculation ensures that your blades maintain their edge without unnecessary wear.

Sharpened blades significantly impact the health of your lawn. They provide a clean cut with each pass of the mower, which is vital for the grass to recover quickly and remain robust. Dull blades, by contrast, tear the grass, causing frayed edges that not only look unsightly but also increase the grass's vulnerability to environmental stresses.

Blade replacement isn't as frequent as sharpening. Typically, mower blades can last several years before needing replacement. However, if you notice cracks, bending, or significant dullness that doesn't resolve with sharpening, it's time for new blades. Regular inspection will inform you of the blade's condition and whether it's time for a replacement.

The adage 'sharp as a tack' holds particularly true when it comes to lawn mower blades. Keeping them sharp will ensure your lawn remains healthy and reduces the need for additional maintenance. Remember, sharpening is a routine task, and replacement should be based on condition, not just age. Attending to your mower blades is an investment in the beauty and health of your lawn.