Here’s the twist: you don’t want to scalp your lawn. If you cut it super low, you’ll stress the grass, and stressed grass is like a magnet for more weeds. Aim for about a third off the top—a nice, clean haircut, not a buzzcut.
Why does this matter? Because weed and feed often contains fertilizer that your lawn needs to bounce back. Scalped grass can’t absorb those nutrients well, so it stays weak while the weeds laugh in your face. Keep it tall enough to breathe, short enough to let the granules through.
Rhetorical question time: Have you ever seen a lawn mowed so low it looks like a desert? Let’s avoid that—your grass deserves better.