Got a massive molehill or a root-induced mountain? You have to get surgical. Cut an “H” or a “T” shape into the turf over the bump. Use a sharp shovel. Peel back the flaps of grass like you’re opening a present.
Now, dig out the excess dirt underneath. Your goal is a flat surface. Put the turf flaps back down. Tamp them firmly with your foot. Water them daily for a week. They’ll root back in like nothing happened.
This sounds intense, I know. But it takes ten minutes per bump. And your ankles will thank you when you don’t roll them on a hidden lump.
The “Patience, Grasshopper” Method
Here’s a secret pros use: let winter do the work. In cold climates, frost heaves the soil. When the ground thaws in spring, it settles unevenly. That’s your cue to topdress again.
Or use a dethatcher (a power rake). Ripping out thatch can instantly flatten a spongy lawn. Rent one for a Saturday. It’s loud, it’s violent, and your lawn will look wrecked. That’s normal. A week later, it’ll be the flattest it’s ever been.
How to flatten a bumpy lawn - YouTube
