Grass

Grass is grown on the farms in the Harvest Moon games. Once it is fully grown, it can be cut using a Sickle, where it automatically becomes Fodder and is transported to the silo (which is attached to the animal barns) to be used for feeding.

In Harvest Moon: Back To Nature, Grass can be cut in 11 days (indicated by a darker shade of green), and will regrow 9 days after it's cut by sickle.