I guess I am proof that you can grow hops in a planter. The buds on my centenial hop plant are blossoming in large quantities and looking great. They are all over and there is more than i though there would be.
I haven't decided what type of beer I'm going to make with these, but I'm hoping to get enough to strictly use these hops and make a fresh hop ale. I'd like to make it close to what Sierra Nevada does with their hop harvest. That's probably one my favorite highly hopped ales. I had the Southern Hemesphere Hop Harvest at the ACBF in Boston last month and it was amazing.