Before the days of Piggly Wiggly (yes, they were the first self service grocery store), much of the population grew the majority of their own foods. Grapes were not imported from Chili and a tomato was not imported from Mexico. Food grew in back yards or at least in local farmer’s yards for the indiginous foods for the area.
Now seeds moved and varieties grew (let’s not get into hybrids and GMO foods, let’s keep it ‘REAL’) so the selection widened, but still most people grew it themselves. This is why it is part ONE of a multi-parted preparaton step. First, to be sustained in lean times, you need to learn to grow food.
Obviously before growing it, you need to know where to find it and where/how to plant it.
Planting instructions for your area can be found all over the web. Where you will plant it is largely up to where you live (suburbs, rural or urban settings) but no matter where you live you can plant something!
Small boxes, community gardens and some of the new indoor growing trays help to transform small spaces in to productive food areas. So the excuse of having no space is being overcome.
There are several optoins for where to get the seeds, but may I suggest heirlooms. This way, since they have not been crossed or modified, each year the food will produce seeds to grow more food. You may get a ‘plant’ from a hybrid or GMO tomato seed, but likely nothing you can eat from that plant. They are not fertile. Here are a couple of suggestions for heirloom seeds: