How to get a clean cut — instead of tearing your lawn
What happens when your mower blade is blunt?
A lawn mower should cut — not tear.
But when the blade is blunt, that’s exactly what happens: the grass is frayed rather than cleanly cut. It doesn’t just look untidy — it can seriously affect the health of your lawn.
Typical consequences of a blunt mower blade:
Frayed tips → the grass turns yellow or brown
Higher risk of fungal disease or rust
The lawn takes longer to recover
Higher water use, because damaged grass dries out faster
How to tell if your mower blade is blunt
The tips of the grass look frayed or “pulled” rather than cleanly cut
The lawn is cut unevenly or looks striped
You see brown tips even though you water regularly
You haven’t sharpened or replaced the blade for over a season
Sharpen or replace your mower blade — here’s how
Option 1: Sharpen the blade
Ideal if the blade is slightly dull but not damaged.
Remove the blade (disconnect the ignition / remove the battery first!)
Sharpen with a file or sharpening stone at the original angle
Balance the blade (e.g. by resting it on a screwdriver)
Refit the blade — and tighten the bolts securely
Option 2: Replace the blade
Replace it if:
the blade has cracks, nicks, or is bent/deformed
you no longer notice any improvement after sharpening — it’s time for a new one
Tip: Quality replacement blades are available for many brands such as Honda, Stiga, Bosch, or Viking. Make sure you check your mower’s exact model number.
How to look after your blade long-term
After mowing, remove rough residue with a brush
Once per season, remove and inspect the blade
Never mow over stones, gravel, or very wet ground — it dulls the blade quickly
BEGARDENPRO service tip
Don’t want to do it yourself?
We professionally sharpen, maintain and replace your lawn mower blade.
Collection and return available in the Laarne area — and across Belgium.
Conclusion: A sharp blade = a healthier lawn
A sharp mower blade gives you a clean cut, stronger growth and less stress for your lawn. Check and maintain it regularly, and you’ll need fewer replacements — saving you money in the long run.