A thing which I regret, and which I will try to remedy some time, is that I have never in my life planted a walnut. Nobody does plant them nowadays—when you see a walnut it is almost invariably an old tree. If you plant a walnut you are planting it for your grandchildren, and who cares a damn for his grandchildren?
The biggest producer of hazelnuts by far is Turkey (more than 400,000 tons), followed by Italy (120,572 tons), USA (34,473 tons), Azerbaijan (33,941 tons) and Georgia (29,500 tons).
Hazelnuts are globally commercially produced in just around 30 countries.