What does aeration mean?
The aeration (or aerification) of greens (and sometimes fairways) occurs once or twice a year at most golf courses. To aerify, a piece of machinery cores the ground (punches holes and removes the dirt) in a certain pattern. This is done to loosen soil that has been compacted by golfers walking over it, opening up growing room for the grass roots and increasing oxygen to the roots. It usually takes 10 to 14 days for the holes to fill in and grow over.
