There will be no corn in Skyrim! Skyrim is too far north so if you want corn you better get greenroom also. See corn growing in Norway or Sweden? How about Alaska? And does it grow in Canada? Well screw Canada, but there grows no corn that far north, period.
Corn will be a huge immersion breaker, I mean gargantuan. I can see myself wandering in Skyrim already: "Is that a pink unicorn riding a mushroom? Well I expected seeing one of those. But wait, what grows there. No, it can't... is it... no I must be hallucinating... no they couldn't... nooooooo-ooooo! It's a green, alive and growing [censored] corn plant!!! How is this... gah... I'm feeling so sick and dirty now. Thats really unnatural and offers so huge exploit that I really can't play this, this, no this doesn't even deserve to be called a game anymore."
Here I draw the line. Corn, you stay out of Skyrim! Can't you see? You have already taken everything from me and now you want Skyrim. There is nothing for me to live for anymore. One last thing was beautiful in my miserable life an now you corn have wrapped your filthy hands all over it. When did it come to this? What did I do to you? Do you get some twisted pleasure from this? Answer me corn. Answer meeeee!
Well, I live in Sweden, and there is a huge corn field just outside my cousins house.
Further proof that corn can survive in Scandinavia:
http://translate.google.se/translate?js=n&prev=_t&hl=sv&ie=UTF-8&layout=2&eotf=1&sl=sv&tl=en&u=http%3A%2F%2Fwww.vt.se%2Fnyheter%2Fartikel.aspx%3Farticleid%3D4172862&act=url