If you do an internet search on "frozen seed bank" you will find all kinds of resources, including the most famous: the Svalbard Vault. The bottom line is that seeds stored at zero degrees fahrenheit will remain viable for at least 50 years. Further lowering the tempertature, lowering the oxygen content and lowering the humidity will all add more decades to how long seeds can be maintained.

The sources also say that seeds stored in a common refrigerator at 35-40 degrees fahrenheit will remain viable for at least 20 years, so I'd have to say you are in luck. Give it a whirl!
StoneMeadow Reviewed by StoneMeadow on . 20+ year old frozen seeds I looked around for anything similar to my question in these threads but could not find anything remotely close. (I could have missed some threads, though.) I had a friend pass away recently who had kept seeds from the best weeds they had smoked starting in the mid '80s - early 2000's. They kept them frozen. They didn't note the strains or anything more than, "kicked ass" - "mellow" - "couch potato locked" - "fucking unbelievable high" etc. so I have no way of knowing what percentage of Rating: 5