i am a country boy that was raised in the north. what your talking about is slightly accurate. when i said etc.. in reference to the vegetables i was talking about corn and wheat and barley as well. ground is not as hard as you are talking about for getting it to grow. i can have a fully functioning garden up and running in a short period of time and the growing season where i am going is about 5 months if you start as early as possible. it is harder to grow down here since the air is more polluted. supplies i take with me are going to keep us going till the first crops come in, your talking like i am just gonna roll on up there with nothing but a smile and hope for the best.Are we still pointing at things?
Unless you are much older than even Lokiyour family used the garden to add food to the table and help feed the family. Or did you have milk cows, chickens, an a few acres of wheat and corn as well? Human's need salt. Where do you get it? Most diets decades ago in north america relied heavily on grains. Where are yours going to come from? Are you going to rely on plant protein? Do you know how to balance it so you will be able to live off it? If you do not, how will you deal with the need for protein? Do you have fertilizer? It takes a years to condition the soil using compost.
How are you going to live until the first crop comes in? It could be a year or more before you even see a radish unless you already have it all set up.
One of our neighbours down the road bought an old farm. I love to visit and they are very proud of their canned vegetables. They think in 4 or 5 more years they will be mostly self sufficient. And they get to use machinery to make the land productive.
Did I mention heat and the time needed to cut down and split wood? The further north you go the colder the winter and the more wood you need.
Do you have a nice warm safe house for everyone already built up there?
i also highly doubt that people will be heading north if things go bad, it will be seen as cold and unforgiving and people that never grew up around it or in it will be afraid of that. i see most people staying in cities hoping for the best waiting for someone to take control and tell them what to do. the generation that is slowly taking over can't function without being told what to do.
i will not be relying only on plant protein either, i have and can hunt for more than "fun" i have lived on what was killed for months. in fact i would never hunt for "fun". the body will adapt to it's surroundings and live easily on what is available to it. i could tell you my current diet and what i have been living on since i was about 20 and you would tell i am currently dead. it's all in what you know. i am not saying it would be an amazing family get away, it would be rough for a period of time but after that it would be just fine.