My Cascade hops are in their 3rd year and doing so well they're hard to control. The problem I'm having is that they grow, make a ton of hops, then start putting out side bines, which grow and make a ton of younger hops. What happens is that I have some cones that are fully mature and some that are very young. Everything I read talks about harvesting them all at once...which is kind of the only viable way to do it but not great for me. Anybody else run into these problems?