Hi Bob, welcome to permies!
I'm presently in 6b, Norfolk county. So a fair bit south of you. I was in 5b for 15+ years and grew in
Nlfd, so have dealt with zone 2.
I agree with Les that walking onions and sunchokes are worth a shot. Rhubarb is always a good one. It can typically hold its own in rough ground. Wild strawberries may not produce much but they are low effort.
I like some of the easy herbs. Lovage, thyme, chives, oregano, mints, bee balm, horseradish.
You should be able to at least get some kales, beans, cabbages, lettuce and radishes to produce this year since they don't need much in terms of ground prep. They may be small but you should get something.
Not sure if you know already but both Whiffletree and Silvercreek nurseries deal with bareroot stuff that will work to zone 2. Both usually have good clearance sales at the end of season. They are both fair on their shipping prices and Ive been happy with their trees/shrubs/plants.
Hardy fruit trees, out of Quebec, deals with even more of the low zone stuff but they just opened for orders and were already sold out of some things. I've got an order in but haven't bought from them before.
Haskap, sea buckthorn, blueberries, serviceberries and cranberries should all be good for you. I know there are some pears and apples that will produce as well.
Good luck, it's a huge adventure you're starting!
