Non-native but widely naturalized. Used as a hay grass and for pastures because of its high yields and sugar content, which makes it sweeter than most other temperate grasses. In dry areas as in much of Australia, Mediterranean subspecies such as subsp. hispanica are preferred for their greater drought tolerance. It requires careful grazing management; if it is undergrazed it becomes coarse and unpalatable.
In some areas to which it has been introduced, cock’s-foot has become an invasive weed, notably some areas of the eastern United State