Why not grow your own?
Cold climate? Greenhouse. Many strains to choose from and I have grown it here (MN) in the far northern tundra. If millions processed their own ‘baccy just a few decades back, why can’t today’s smokers?
FYI, I do not smoke but I support liberty.
Don’t know how that will work in Ireland, who doesn’t even grow as much sugar beet as it used to because of the stupid “Common Agricultural Policy” of the EU and its quota system. Ireland is generally cool and wet, but not typically cold.