Have a look for ''hopswest'
I grew my first lot last year, and its pretty easy, got all my hops from there, got great information with them.
I think they are a bit of a weed, and you have to stuff up an fair bit to have a poor return.
I put in 2 cascade, 1 hallertue and 4 chinook rhizomes.
Cascade went like the clappers, I got 280 grams dried.
Hallertau went poorly, too hot and dry here I think.
Chinook went OK, but rhizomes were small so this year will be better.
There's something nice about growing your own beer ingredients.
Am malting some grain at the moment, just to go to the next level of, 'home made'
Cheers