The Q&A Archives: Bumpy lawn

Question: My lawn is very bumpy - so much that it is difficult to walk - I have tried aerating - I have heard rolling the lawn would help however wouldnt that cause compaction issues that could affect the lawn? I have heard the bumps are from worms - is this true and how can a get a lawn worthy of barefoot romps?

Answer: Lots of things can cause a bumpy lawn, from the freeze and thaw of winter and spring to compaction issues to earthworm and other critter activity. Probably the least expensive solution is to spread top soil over the low spots to help level the yard. You can spread it right over any grass that is growing in these areas. The grass will eventually grow through the topsoil. If you want it to green up sooner you can broadcast grass seeds over the top soil. I've tackled a similar project and it isn't too difficult except for hauling the top soil (I used a wheelbarrow). I used a shovel to drop soil over the low spots, raked it around and then checked the level by dragging a 6' 2"X4" over the lawn. When I was satisfied I had filled in all the holes and ruts, I reseeded, sprinkled a thin layer of peat moss over the reseeded areas to help keep the grass seeds moist. Grass will sprout in 7-10 days if kept from drying out. In 4-6 weeks your lawn should look great. Best wishes with your lawn!

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