Caring For Your Overseeded Lawn?
Whether you overseeded your lawn in order to thicken up thinning spots or to ensure green color throughout the winter, there are certain aspects of lawn care that you need to cover in order to have a healthy lawn during cooler months.
You don’t need to mow your newly overseeded lawn until the grass grows to a height of 3-4 inches. This could take six weeks to two months. Waiting until the grass has grown to mow allows it to gain a foothold and establish strong roots. Mowing is stressful for the grass. Mowers without sharp blades can actually rip the grass out by the roots.
When mowing—whether in the summer or the winter—never remove more than one-third of the grass blade at a time. In the winter, you can take care of your grass by removing no more than one–fourth of the grass at a time. Never mow after a heavy rain or snow melt (though after a snow melt, the grass is unlikely to be actively growing). When the ground is wet, you can easily compact the ground beneath it.
Winter weed control is an issue primarily in warmer areas. There is an entirely different set of cool-weather weeds that take hold during the winter. The best way to control weeds is to prevent them from spreading. Hand-dig perennial weeds or spray them with a non-selective herbicide (such as Roundup®) when the temperature is above 70 degrees. Sedges (grass-like plants with sharp edges) and dollar weed (round leaves connected by underground runners) have to be sprayed with Image®, as they will not react to Roundup®.
Another option is to make sure to mow the weeds before they have a chance to flower and set seed. You can go a long way toward weed control by simply eliminating the weeds’ ability to set seeds.
Water the newly seeded lawn twice weekly until the temperatures drop below 45 degrees Fahrenheit nightly. Take care to train sprinkler heads away from sidewalks and driveways—otherwise you can wake up to a dangerous ice field in your yard!
It isn’t necessary to fertilize the overseeded lawn, and doing so can actually pollute waterways by unleashing unnecessary nutrients into the groundwater.