North UK (ie Scotland) has the same climate (roughly) as holland.
Look for the ones that do well in holland. Such as Hollands hope, early pearl, early girl etc. (any one with "early" in the name) or some auto flowering plants for staggered harvests all summer, i know there'll be some debate about this but thats another 400 page thread.
Also look in
Guerilla growing section for what people are growing this year. I'd suggest
Marcos's diarys for some awe inspiring results (that's his current diary, see his signature for his past escapades).