The Middle Colonies of North America had mild winters and warm summers, avoiding the extremes of both New England and the southern colonies. Fertile soil left there from glacial deposits, wide navigable rivers and the pleasant climate made these colonies especially attractive to farmers.
The Middle Colonies, comprised of New York, New Jersey, Delaware and Pennsylvania, did not have harbors as accessible or plentiful as those in the North, nor did they have fields as fertile as those in the South. However, they had enough of both to represent a happy medium, a pleasant place to live with good potential for fertile farms.
For decades, the Middle Colonies were called the breadbasket colonies because their farms produced so much, especially wheat. It was from this reputation that New Jersey was nicknamed the Garden State.