If it's sharp the cut edge of the grass will be straight. If not, it will be torn and may also be pulled loose at the roots. It's worth taking the blade to be sharpened if you can't do it yourself but it's possible with a good knife steel. https://www.gardentoolbox.co.uk/news/how-to-sharpen-lawnmower-blades-on-a-flymo/
Vendée - 20kms from Atlantic coast.
"The price good men (and women) pay for indifference to public affairs is to be ruled by evil men (and women)."
Posts
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
https://www.gardentoolbox.co.uk/news/how-to-sharpen-lawnmower-blades-on-a-flymo/