Horses kept at grass will continually graze, feeding naturally. However, during hot summers the grass may become parched and scarce so the horse will need additional feeding to compensate for this. Hay is the best substitute when grass is scarce and feeding twice a day is best.

During the winter the grass does not grow or may become covered in snow and so hay should be fed. It may also be necessary depending on the severity of the winter to feed concentrate feed.

If the horse or pony is being ridden regularly extra feed may also be required to maintain condition.