There is a seed bank of heirloom seeds that is guaranteed to grow in any of the lower 48 states, maybe you should try that one.I'm actually working on "guerrilla gardening" around my area. My problem has been climate and soil issues. My local soil is salty sand and limestone, with a very low percentage of organics. My climate has many months of drought conditions. The heat down here offers no chilling period for breaking the dormancy of some seeds. We also have insects and parasites and diseases that when left untreated, destroy most traditional vegetables that you might grow.
I believe it's a bad idea to depend on foods that won't naturalize to your area. My guerrilla gardening efforts right now involve learning what things have naturalized successfully and increasing the food sources that have already naturalized themselves in the local ecosystems.
The video makes the point that you can change your conditions to provide what non native plants need. Yes but... I believe that if you fight nature long term, it will win.
Yup I know about the benefits of heirloom varieties.There is a seed bank of heirloom seeds that is guaranteed to grow in any of the lower 48 states, maybe you should try that one.