Why is My Lawn So Bumpy? The truth is, a bumpy lawn could be due to a number of issues, including one or more of the following: Freezing and Thawing: A thin lawn that freezes and thaws often multiple times in the Lehigh Valley area can cause the soil to lift and heave, ultimately becoming bumpy. Earthworms and Nightcrawlers: Earthworms and nightcrawlers can cause a lawn to be bumpy because they create small lumps of dirt at the soil surface. Animals Digging: Animals digging through your lawn may be another culprit of the unwanted bumps.
While raccoons will roll up a lawn in search of grubs and other larval insects, skunks are known to make small holes while digging for insects to eat. Improper Grading: A poorly graded yard is a more serious cause behind a bumpy yard and can lead to bigger problems if water is running toward your home instead of away from it. Tree Roots: One or more trees on your property may have roots growing close to the surface.
These roots may be causing your bumpy lawn problems. Mower Ruts: Are you constantly mowing in the same groove over and over again? Contact your local county Extension office through our County Office List.
Lumpy lawns are common in Colorado and are caused by earthworms and night crawlers. Earthworms in a lawn are a sign of healthy soil because they eat thatch, grass clippings and other organic matter, recycle nutrients and aerate the soil. This improves the health of the lawn. Since worms are good for a lawn, it is best to mow the lawn as high as the mower can be set and leave the worms alone. Rough, bumpy lawns should not be rolled with a heavy roller. While rolling the lawn will remove some of the roughness, it also damages the turf by compacting the soil.
Compacted soil conditions reduce turfgrass vigor and may eventually lead to a thinner lawn. Rough, bumpy lawns are annoying. Breaking down some of the bumps by power raking and developing a thick, healthy turf should help alleviate this problem. Destruction of the earthworms is not feasible or advisable. This article originally appeared in the April 28, issue, p. Links to this article are strongly encouraged, and this article may be republished without further permission if published as written and if credit is given to the author, Horticulture and Home Pest News, and Iowa State University Extension and Outreach.
If this article is to be used in any other manner, permission from the author is required. This article was originally published on April 28, Repeatedly mowing your lawn in the same pattern can cause ruts to develop. Spring provides the conditions grass likes—warm days and cool nights—which makes this season a good time to repair lumps and bumps. It can also be the worst time if the soil is soggy.
You may be doing more damage than good walking on the lawn. Wait until the soil has had a chance to dry out. Topdressing with quality topsoil or compost could be your best solution for minor problems. Cut the lawn or affected area very short before topdressing. The grass will continue to grow through the topdressing. If a deeper, but small, hole is surrounded by a healthy lawn, you may be able to level the hole with soil and allow the grass to fill in.
Larger areas will need to be seeded or patched with sod. Are you considering leveling your lawn using a roller?
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