Leviticus 19:23-25

“When you come into the land and have planted all kinds of trees for food, you are to consider their fruit as forbidden. Three years it will be forbidden to you. It is not to be eaten. Then in the fourth year all its fruit will be holy, for giving praise to ADONAI. In the fifth year you may eat its fruit. So it will yield its increase to you. I am ADONAI your God.