Get matched with top lawn irrigation specialists in Nora Springs, IA

You can try that, but it isn't likely to yield results. It's like watering potted plants without putting the seeds in. Most of the tossed grass seeds sit on top of the soil or existing grass blades and never germinate. The seeds need to make it into the soil, just like growing a potted plant. The best way to accomplish this is to aerate your lawn first, then overseed.

When it comes to combatting the effects of soil compaction, core aeration does a far better job for a longer period of time—because it actually removes dirt rather than just pressing holes into it. By taking dirt out from under your lawn, core aeration allows more light, air, water, and nutrients to penetrate into the soil below and help your grass’s roots grow even stronger.

Many factors can cause your yard to have lawn depressions. Here are the most common reasons: 

• Heavy rainfall 

• Wild animals such as moles, voles, and groundhogs that burrow and tunnel

• Poor drainage

• Buried items such as pipes that break down

• Decaying tree roots or stumps

• Soil that has compacted

• Improper mowing techniques

• Driving heavy equipment and vehicles through the yard

Not only are lawn depressions unsightly, they also cause your yard to be uneven and have divots, which can be a tripping hazard. Lawn depressions also make mowing more difficult and can potentially cause damage to your mower.