I have been successfully been growing hops (Two varieties) for many years and using them in my homebrews. I am in zone 7b and the challenge here is the hot and humid summers and wet cold winters. Your problem would be the cold temps in zones 3. I don't know how well they would do there, but you can check with a local agricultural university or govt. ag extension agent for your area. I have heard of people growing them from Maine to Washington state and they seem to do better with cooler temps than in my region. I grow them over the top of my chicken coop run and up on trellis on the side of my workshop porch for the summer shade as well as the pleasant smelling and useful beer ingredient for bitterness and aroma. Cascade and Liberty varieties are working for me both in beer and as a shade ornamental. Best wishes for your gardens and the homebrew efforts.