haha a garden in your yard....that's cute. The first thing to go when shtf is the government notion of land ownership (rental at a massive premium is more like it). There is good and bad here. You're on your own to defend the land you happen to be using, but you don't have to pay to live on earth either. besides you'll need at least 2 acres per person for a garden plus 10 acres minimum for warmth to survive the winter.