Overseeding is one of the most important tasks involved in growing a healthy, lush lawn. While fertilizing your lawn is important, grass plants slow down their rates of reproduction after a few years. Over time, lawns that have not been overseeded will grow thin and unhealthy, making it much easier for weeds to overtake the lawn. Overseeding can be time-consuming if you have a large lawn, but it is not difficult, and the results are well worth it the effort. This article explains how to overseed a lawn.