Times You Shouldn't Leave Grass Clippings On Your Lawn
By MARCO ROSSI
Leaving small grass clippings on your lawn is a convenient lawn-care practice that replenishes the soil with valuable nutrients, eliminating the need for seasonal fertilizers.
However, you should not leave the clippings on your lawn if the grass is infested with weeds, especially hard-to-control ones like dandelions, clover weeds, or purslane.