I am interested in getting seed from some of the northern stands of corylus avellana in Norway. I know they are reported to grow in the Steigen area, which despite being much farther north than my location has a similar temperature and precipitation regime. I have planted about 30 corylus plants of corylus avellana, corylus americana, and corylus cornuta. Some of the avellana look promising but they originated in Oregon, and probably came from UK before that (not sure on this). I have had some trees in the ground survive 1 winter, but most I just planted last year. One of the McDonald hazelnuts I planted is really thriving, growing over 18 inches/year but its in a very sheltered location. Of the around 20 corylus avellana seedlings I planted last summer (descendants of Jefferson) it seems maybe half have dead buds on them. My thinking is if I can get seed from northern Norway and plant many I might get some good plants to bear nuts for this area. Can anyone help me source such seed? Any other insights on this topic?
I just did some searching on google.no I cannot find any people selling them so you'ld have to find someone local to go gather them next year, and I expect importing would be illegal. You don't need to go very far north in Norway to hit zone 6 just inland, same for most of europe you could also look for seeds from Poland and most of Eastern europe. I've not managed to get any seeds to germinate for me here Think I will have to try cuttings instead, as the plants are not mine I can't try layering which I know is easy.
As a side note, many plants survive heat zone1! Some apple varieties fruit well here and I have oaks (macrocarpa x robur hybrid) and gingkos I planted last year that appear to have live buds. even butternut (i think thats it- juglans cinerea) looks like it will grow again next year... and many many more. still the cool summer and fairly short and somewhat dry growing season are issues here.