Blueberries would be good, but I think that they would have to get the short bushes or the cold would kill them. (Zone 5?) You probably need to plant a lot or use bird netting!
You could try saskatoons since they grow in Canada.
I have some Viking aronia, which are high in antioxidents. (Rabbits use them for browse and you would have to defend them with a wire wrap in the winter... Japanese beetle also like them along with Victoria and Prune d’Ente 770 plums.
This year I lost all of the Aronia fruit before it even ripened. (Cardinals? grossbeaks? Something like that.
Zone 6B. KS/MO Border 1100 feet, 5:07PM -3 F.
“You could try Saskatoons since they grow in Canada.”
We have three - I like them for the very early spring bloom- the fruit goes right to the birds. :)
I’ll do some studying on Blueberries. I pick my battles carefully. I just ‘plant the seed’ and then eventually it’s HIS idea, an it’s all cool, and it gets done. ;)