Having a nice lawn is something that many people think about, especially during the summer. By targeting several management strategies, lawn care can become more environmentally friendly and help keep our water clean.
Leave the clippings on your lawn. Over time the action of mowing and taking away the clippings can deplete the soil of valuable nutrients. Leaving the clippings returns these nutrients to the soil and can promote less fertilizer usage over time.
Mow high. Adjust your lawn mower to mow in the 3 to 4 inch range. In general, grass should be in the 4 to 4.5 range at its longest. The health of the grass significantly increases when you can leave more green growth on the plant. Healthier grass means that your lawn will have less instances of disease, insect and weed issues.
Keep your lawn mower blades sharp. This ensures that you are not tearing/shredding the blades of grass. Continuously tearing and/or shredding the plant can hurt the crown of the plant and ultimately kill the grass. Check at your local hardware store as to who in your local area can sharpen your blades.
Fertilize in the fall. Fertilizer applications should always be based on a soil test. Fertilizing without a soil test can easily lead to over-applying fertilizer, which can cause problems for our environment such as algae blooms in our local waterways. If you choose to fertilize, a late fall application in September and then in mid to late October is the best time. Adding a fertilizer application again in mid- to late May helps keep the lawn green and healthy throughout the summer. Do not add fertilizer during or right before an expected rain event as that is throwing money away, and adding nutrient pollution to local waterways.
Consider letting the grass go dormant in a dry summer. If the summer is dry, you may decide to save water and not irrigate your lawn. If you choose this option, the grass will go dormant and turn brown. Don’t worry, the grass is not dead. It will revive when cooler weather and rain come back in the fall. Grass generally does not die until you have 4-6 weeks of very dry weather. Choosing to water is your personal decision but know that you should water deeply and infrequently rather that quickly and often. As a general rule apply a half-inch of water every four weeks after the lawn turns brown. Also, it is important to minimize traffic on a dormant lawn to reduce possible damage.
Rethink your lawn. Did you know that we can thank pollinators for 1 in 3 bites of our food? Unfortunately, grass does not offer the nectar or pollen sources that pollinators need to survive. Consider turning part of your landscape into a pollinator garden or admiring the beauty that clover, violets and dandelions provide in a sea of green. It is important to do your research on local ordinances especially if you choose to make your yard a “pollinator lawn”. To check out more information on pollinator lawns, go to Michigan State University, https://pollinators.msu.edu or the Blue Print Partnership, https://bluethumb.org/ .
Photo credit: Metro Blooms
For additional questions on conservation minded lawn care, contact the Warren County Soil and Water Conservation District main office at 513-695-1337.
Warren County SWCD Staff Blog
A blog to keep you informed on all the latest news at Warren County SWCD and in the conservation world.