Aleman's advice here is pretty much all you need to know.
But i'll add some more for those who are interested...
Hops are a member of the Cannabis family-a little bit of useless information here- You can splice a cannabis plant onto a hop rhizone and it will grow quite happily. Same the other way round. When i say 'you can' that means i've had little success splicing any plant onto a different rootstock-except for Acers. But i'm told it can be done.
I've started doing some reasonable research into hop growing. It appears that the hop industry here in NZ has more power than the US government. Your NOT allowed a named var, your not allowed to grow more than one 'ornamental' var, your not allowed to germinate the seeds you get from hops supplied by NZ Hops and your certainly not allowed to become a hop grower unless you have 25 Hectares and $2 million to invest? So who would ever want to grow hops in NZ? What a blinkered stuck up bunch of twats.
So i've got a bunch of seeds from my Nelson Sauvin and NZ slovenians that i'm going to germ out at the weekend. :twisted: I plan to keep these under carefull control till i can weed out the males and begin my 'cubing' process. Cubing, for those who don't know is basically keeping an original and then systematically breeding it with generations of offspring till you get the desired result. Thats a very basic explanation there. As i've bred fish and plants for a living Mendels laws of genetics is a book i adsorbed and learnt from. It's quite interesting too. It's also how when weird claw handed 'circus' freaks had offspring the children had the trait too. It's because grandad would have offspring with his grand-daughter. Generally known as 'fixing'. Sick but unfortunately true. Perhaps this is why there are laws that stop that sort of thing nowadays??? Luckily though-not in fish. LOL
Hops need lots of sun in the UK. They thrive in full sun. They like rich soils-the uptake of nutrients to sustain the incredible growth rates is quite demanding. As Aleman stated it is quite hard to fcuk up hop plants-but it can be done. You need to really be on top of your game to grow them in pots-but it can be done. Personally(and this is just me) i'd prepare the soil prior to planting. I'd use fish meal, potash and some good quality medium-J innes 3 is fine-better still compost you have made your self from food scraps from the kitchen mixed with some newspaper and grass cuttings. I can give you the ratio's for mixing this up if your REALLY interested. Otherwise 10% fish or bone and the same of potash in the total volume of mix used should be ok. I'd then supplement this with liquid feeds. An organic fish meal would be ideal-right up untill the first signs of flowering started. Then STRAWBERRY food is more suited to the required NPK for hops than tom food but tom food would be fine. Again i'd use organic. My reason behind organic is simple. This is the first generation of children who are expected to have shorter lifespans than their parents. What are they fed with? Chemically fed foodstuffs. Doesn't take Einstein to work that out does it? I've been growing my own food crops for well over 20 years and i constantly try the new 'miracle grow' product on a selection of my food crops. Sure they grow well, yield more weight per plant etc. But no-one i've ever given any of my chemically grown veg's to has thought they were great tasting. Bigger yes, better, NO.
I've had this argument so many times i'm not going into it anymore. If you haven't grown organic then you cannot argue with me. So don't cos i'm not interested. I like growing organic, i've tried both-virtually every year. The organic's win every time. Yes it's more expensive to buy organic fert but it's so simple to make up some emulsified fish mix that the expense argue is unjustified. And your own organic compost is completely free, cuts down on landfill and can be made to suit requirements.
I'd encourage everyone to try and grow some hops. Let them be for the first season and DON'T expect a harvest-then you won't be disappointed. Your second season will yield some nice hop cones for you and then from the third you'll be laughing. Don't worry about AA%'s. Face it, your taking the fact that when the hops you are using were tested they were x% AA. You think they arrive to you with the same %? You think they remain the same for the month's after when you store them? Chances are No is the answer to all the above Q's. Just be content in the knowledge that your beer you have brewed was made with, hopefully, organic hops that you have grown yourself. Now how good would that be?