Learning the basic principles of survival gardening will mean a long-term food supply for you and your family in the case of an apocalyptic event. You can stock only so many cans of food, and while hunting will provide a steady source of food, you need a source of heat to cook it, which may attract unwanted visitors.
The key to this kind of gardening is having the right non-electric tools on hand. You have to make some assumptions about the post-apocalyptic world and the first of these should be that no electricity is available. This not only means that you won’t be able to use any corded gardening tools for survival gardening, but you’ll also lose tools that use batteries or need recharging after a few uses. Beyond a spade and a fork, you should look at getting some of the following tools ahead of time:
One of the key issues for survival gardening in a post-apocalyptic world is having a source of clean water. You cannot be sure that the pumps will still be working and that any water you find will not be contaminated in some way. To get water for your plants, you could try:
Sustainable gardening takes up a lot of time and a lot of space, and the orderly rows that allow you to make maximum use of your space also act as an indicator to unwanted visitors that life and food is available.
To hide your work, try utilizing other green areas near your home, such as what normally passes for flowerbeds along walkways and the driveway, or areas in a local park, or try seeding a nearby woodland with vegetables plants not often immediately recognizable as food, such as potatoes, turnips, beans, peas, carrots, lettuce and even certain squashes.
Also, you don’t have to wait … and you shouldn’t wait … to get your garden started. If you want a supply of berries, nuts and fruit, then you need to start planting now. You also don’t need acres and miles of land to become self-sustaining. What's more, if you learn good gardening procedures before your inevitable first failures (which can be devastating if a disasters already underway), you can still pick up your veggies at your local store or farmers market if your corn doesn’t come up.
If failure does come your way, read up on those particular crops and try again – it’s rewarding getting next year’s crop just right, and you have the luxury of time to do it in.