I love SHTF gardening ideas.
I found this very helpful article written by a gardener K Fields on a survivalist blog. Around 2017-18 it disappeared from the web site. I recovered it using the way back machine.
He broke down the amount of calories you need. The garden space for each of the 10 crops, plus holding back for the next year planting.
I think your found plan would mesh well with this calorie heavy plan.
http://web.archive.org/web/20170621213909/http:/www.thesurvivalistblog.net/survival-garden-tips-and-advice-to-get-you-started/
examples
Dry Beans:
Many see beans as the staple survival food, and rightly so. Baked, boiled, slow-cooked or refried, beans will provide the protein you’ll need to get through your day. And though it’s not a “complete” protein, most folks will tell you if you throw some grain in your soup, wrap some in a taco shell, or spoon them over cornbread, you’ll have everything you’ll need. The reality though, is that you don’t really have to be careful about combining foods to create the “correct” mix every time – your body is very good at storing nutrients over a day and combining them all by itself as it feels is necessary. A pound of dry beans gives about 1,500 calories, so a 70-pound harvest – about 2 (5 gallon) buckets worth – will give you 105,000 calories and could be grown within a 2,000 square foot plot in most areas even if you have to mix vetch (favas) and beans like I do due to the lack of hot summers here. Also, if your climate allows, be sure to plant some soybeans for homemade soymilk to get additional nutrients.
Honey: Honey is kind of a perfect food – it seems to appear magically, has numerous uses, and lasts virtually forever in storage. My Langstroth bee hives average 60 pounds of honey a year each and in many areas of the country, they would produce closer to 100. One pound of honey provides about 1,350 calories, so each hive gives me 81,000 calories. Let’s put one hive into our survival garden.
The 10 crops are
1200lbs potatoes
450lbs winter squash
70lbs dried beans
35lbs dried peas
150lbs carrots
110lbs corn
150lbs wheat
800 black oil sunflower plants = 6 gallons of oil
1 bee hive
6 smallish apple trees = 240lbs apples (I would grow sweet potatoes and/or something else until the apple trees matured 2-5 years)
I would also want grow leaf lettuce, kale, tomatoes, herbs, mustard, bee balm, garlic, purslane for omega 3, wax beans for leather britches, and climbing roses for petals and hips. Yellow onions and red cabbage would be great but I need to ferret out how to get them too seed in my zone 5 climate.
