In some areas Americans are not allowed to grow anything but flowers and shrubs on the front of the property (the side facing the road), if they do some municipalities will remove the objectionable plantings, usually vegetables. This is changing in some places where public opinion is with the gardener.
There are, or were, Federal government programs which paid farmers not to grow certain crops in order to keep the economy balanced according to plan. There have been cases where the government came in and destroyed crops but it's not common.