I applaud your fortitude! I think the idea of a survival garden is that it gives you fresh foods to supplement the canned and dehydrated foods that you have stockpiled in your bunker already. So it's mostly stuff that doesn't store well. I'd think you'd have more luck making it your primary source of food if it was a Victory garden. Those were designed to help people be self-sufficient with food production during WWII so that commercial production could be turned to the war effort.