Constant rain has left many Iowan homeowners wondering how to keep their lawns looking good without causing damage. Adam Thoms, an associate professor of commercial turf grass at Iowa State University, explains simple steps that protect grass while the weather stays damp.
Delay mowing when water is standing
Thoms says the first rule is to avoid mowing any area with standing water. “Mowing on a soggy lawn can tear the grass blades and compact the soil,” he notes. Waiting until the ground dries reduces the risk of creating bare patches that take weeks to recover.
Raise the mower blade
When the lawn is dry enough to mow, Thoms recommends raising the mower deck so the grass is cut longer than usual. A higher cut leaves more leaf surface, which helps the grass retain moisture and develop stronger roots. This practice also lessens the chance of scalping the lawn during a brief dry spell.
Change mowing direction
Another tip is to vary the mowing pattern each time you cut. “It’s important to mow a different direction this next week, don’t mow exactly the same path because that will start to compact it,” Thoms explains. Changing direction prevents soil compaction and encourages even growth.
Aerate when the soil dries
Thoms encourages homeowners to aerate their yards once the soil begins to dry out. Aeration creates small holes that improve air flow and water infiltration, helping roots grow deeper and become more drought‑resistant. He suggests using a plug aerator or renting a machine for larger lawns.
Hold off on fertilizer
Applying fertilizer while the ground is still wet can lead to runoff, which not only wastes the product but can pollute nearby waterways. Thoms advises waiting for several consecutive dry days before spreading any fertilizer. When conditions improve, choose a slow‑release nitrogen source to feed the grass gradually.
By following these straightforward guidelines—waiting for dry soil, raising mower blades, varying mowing direction, aerating at the right time, and postponing fertilizer—Iowan residents can maintain a healthy, resilient lawn even during extended periods of rain.
Original reporting: KCCI Des Moines — read the source article.
