New Purple Power- Any Info.

I just got 10 seeds from a trustworthy guy :thumbsup: And I live just north of the canadian boarder, pretty much same latitude as Amsterdam, Holland I believe. the reason I got these seeds is that it was crossbred to grow in the colder parts of Europe, or in my case Canada :thumbsup: Does anyone have any information that can increase yields, potency, or difficulty of growing. I'm a first time grower and I'm puttin' 'em in the dirt in this Spring. Any help I would appreciate :thumbsup: