I've got a massive countryside area to choose from, so I won't be short of nettles, and I'm in the Thames Valley, so thats perfect for the watering thing you said.

Can you recommend an early finishing strain? Is this one any good:
[url=http://www.wellcoolstuff.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=RS&Category_ Code=AOS&Product_Count=50[/url]

Thanks!