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Putting too much lime on your lawn can change the soil's pH level from acidic to alkaline. While grass doesn't do well in acidic soils, an alkaline situation can be just as detrimental to its health. Alkaline soil blocks the grass's ability to absorb vital nutrients necessary for survival. If you apply too much lime, you can reverse the effects over a relatively short time by applying commercially available products designed for the purpose or by adding compost to the soil.

In the fall, you should aerate the soil, overseed the bare spots, kill weeds, mow the lawn low, and rake your leaves. By boosting your lawn’s health in the fall, your grass will be stronger throughout the winter and come back healthier in the spring. You should also trim your perennials so that they withstand the winter and are ready for new growth in the spring. 

When your sod is new, you should keep an eye on it to prevent dehydration. As new sod plants its roots into the soil beneath it, it can easily get dehydrated and start to turn brown. Keeping a consistent watering schedule for your new sod will help prevent this issue and will help it thrive as it roots into your yard.

Once your sod is about six weeks old, you can start to establish a regular lawn maintenance routine, complete with mowing, edging, and fertilizing.  

If you use a starter fertilizer designed for this purpose, you can overseed and fertilize at the same time. If you opt to use a fertilizer for established grass or one with a weed control component, it's best to wait at least four to eight weeks after seed application to allow the new grass to take hold and establish itself.