Let me get this straight, every year I tear the bines off of the fence and throw away after picking?
Also, I'm thinking about growing cascades for now since their my favorite hop. What should I expect from two rhizomes on my first year?
You don't HAVE to tear the bines out every year. But if you don't, you'll end up with all this dead mass stuck in the fence. Eventually, the new bine won't be able to find room to lash on.
Is it a metal fence? I'm thinking...burn them out? Not the safest but I like fire.
First year varies depending on the soil nutrient, the strength of the rhizome you got, whether you are a nice person or not and the alignment of Jupiter. I've had bines in a pot give me 1/2 pound the first year and bines in properly prepared soil give me nothing for 2 years. Plan on getting nothing and be pleasantly surprised if you get anything.