I recently stayed overnight with some friends outside of Wilmington, Del., in a "deeded community." I asked them if they grew vegetables in the summer and they said, "No, it was part of the deed that no vegetables could be grown."
The development was built in the 1950s and numbers around 300 homes. They are all the same in structure, different in decoration and are required, by deed, to grow flowers in the front in the summer. "Some color" is required, while all vegetables are banned.