I have some 14 month old chinook hops that sat in the fridge (not freezer) with the original packaging lightly wrapped around them and a cheaply ziplock bag. They smell completely fine. I forgot I had them and saw them digging through my other hops and decided they would be good aged hops for a lambic. They smelled completely fine, I sat huffing the package for a couple minutes trying to dig out the cheesy dirty sock smell but could not find it. I was SURE they would smell like cheese and be all yellow. I'm still aging them in a tea cup on a counter and 2 weeks out of the fridge still green and piney.
6 months in the freezer in some sort of packaging? They're fine.