After aerating and overseeding, give your lawn 2-4 weeks before mowing. This will allow the core aerator to dig into the soil better and pull out deeper cores. Mowing low makes both aeration and seeding more effective. When the lawn grows to be about four inches in height, it is time to cut the grass. Before core aerating and overseeding make sure you mow your lawn short. I know my yard still has a ways to go, but I finally feel like I'm moving forward. While the process of overseeding your lawn may seem simple, there is actually a fair amount of science to it. This will get the lawn low enough without scalping it. By following these steps, the lawn will quickly return to full vibrancy. This way, you will have given the new grass time to acclimate and set roots. When you aerate your lawn it is the perfect time to overseed it as there will be holes all … The holes provide excellent soil exposure for seeds and deliver fertilizer directly to the roots of your grass. There is a chance for rain on fri, sat, sun, and monday. Many people struggle to properly judge when to cut grass after aeration and seeding. Aerating creates holes in the grass and soil through which water, oxygen, and vital nutrients can reach the new grass seed and the roots of the existing grass. The first is from Early May, and the second is from yesterday after the mow. Within 48 hours after you aerate you should over seed, fertilize, and water your lawn. Mow Your Lawn First. Recommended: Mow your lawn lower than usual at 1-1/2″ and clean up leaves. This aids seed germination. Overseeding a lawn is often combined with lawn aeration, and for good reason. We recommend you set the mowing height to 1-1/2″ (one-and-one-half inches). After not knowing much about lawn care, and feeling like I failed with all the grubs issues this was SUPER encouraging for me. After the new grass has germinated and is now 3-4 inches tall, now mow … Overseeding after aeration can return your lawn to a healthy state. Try to mow one or two days before we arrive — and make it lower than usual. For best results, use high-quality seed and fertilize with Milorganite®. The seed, fertilizer, and water will have the best chance to get down into the holes made by the aerator if applied soon after aeration. However, do not worry. Immediately after aeration, your lawn is ripe for overseeding and fertilizing. For example, what’s the best time of the year to do it? One of my customers wants me to over seed this week. Fertilizing in the fall helps grass roots grow stronger and absorb as many nutrients as they possibly can to make it through the winter. To keep your lawn in perfect shape and take full advantage of aeration, be patient. If you have gone to the trouble of aerating your lawn you really should take full advantage of the situation and I feel adding fresh grass seed to your lawn is a good idea after aeration. Here are some pics of the front. Mixing grass seed with Milorganite is an effective way to spread seed accurately. I know it makes more sense to do it in the fall, but he wants it done now. The holes created by aerating your lawn allow good seed-to-soil contact. Cutting your lawn short buys you some time before your next cut. A newly aerated and dethatched lawn can look in a poor state. Before you start mowing, it is ideal that you stop watering the seed about twenty-four hours prior in order to allow the grass to dry out a bit. Also, if overseeding then you will have to skip several weeks of mowing as your new seed germinates. If you plan on doing this, make sure you use a starter … Image source Nuleaflawncare.com. After Aeration and Dethatching. 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