I have a hand-pump water well in my yard, but if I had to depend on growing food, I’d starve. No green thumb at all. I do have some amount of “survival seeds” but I’d need to cooperate with a green-thumbed neighbor.
Nearly every green thumb started out brown. Mine did.
I still lose a shocking number of transplants. Mainly to deer. Course that wouldn’t be a problem after a short while if the power goes out.
Just as important as seeds are tools. Garden implements, something to use as starter pots (I recycle sour cream, yogurt and other small plastic containers for this), and something to turn your soil over, OR a steady supply of something to use as mulch.
Link for you. Print out and save, just in case, and either laminate or put in plastic sleeves and keep with your seeds:
http://edis.ifas.ufl.edu/vh021
And another one:
http://edis.ifas.ufl.edu/topic_nematodes
Several sub links.
If your soil is sandy, you likely have ‘todes.
“No green thumb at all.”
I had a black thumb but now I know what to do and am growing food plants on my deck. I’ll send you, by Freepmail, how I figured out how to grow food plants. Having fresh food along with long term food makes all the food last longer.
Gardening has a vicious learning curve so start learning before it hits the fan. Those who merely have stored seeds will die before they get a good harvest.