Arrrrgh! I don't have anywhere near as many restrictions as you, but I have the same frustrations with 'fashion' in food. I nearly went spare in a shop one day in January when they had a huge selection of out-of-season fresh fruit flown in from abroad, but I couldn't find cranberries (which are grown locally and in season) anywhere.

We recently found an affordable source of Canadian-grown organic blueberries, so that will hold us until the rhubarb comes into season. And assuming my newly-planted black current bush survives the snow storm we're currently having, next year I will be able to freeze my own fruit! Yay!