What is the purpose of overseeding on golf courses?

Overseeding is a vital agronomic practice on golf courses, primarily aimed at ensuring a green playing surface during the winter months. This procedure involves planting grass seed over existing turf to promote growth when the primary grass may go dormant or struggle due to colder temperatures. By introducing cool-season grasses, overseeding helps maintain aesthetic quality and usability of the course, allowing golfers to play on a healthy, lush green surface even when conditions are less favorable for the primary grass type.

In many regions, the warm-season grasses typically used in golf course construction may not thrive in winter. By overseeding with appropriate varieties, facilities can mitigate the effects of seasonal changes, providing continuity in playing conditions and enhancing the overall experience for golfers during colder periods. This practice not only benefits aesthetics but also serves functional purposes, like maintaining soil integrity and preventing erosion during the winter.