Add Yahoo as a preferred source to see more of our stories on Google. Woman looking at lawn mower blades Knowing how to sharpen lawn mower blades is a vital skill to help keep your lawn healthy and ...

Why do I need to sharpen my lawn mower blade? When you mow your lawn with a dull lawn mower blade, the grass doesn’t cut. It tears. The jagged edge of a torn grass blade allows diseases to enter the ...