Some of you may remember from DG that Sandy (seedsower) was very kind and generous last year by giving away a lot of her seed crosses and I was one of the lucky recipients. Her seeds were I believe, dated from 2007 to 2010. Sandy if you read this correct me if I am wrong, I couldn't find the piece of paper with the dates on it. Any way she gave me 10 assorted crosses, I started 20 last April and had 19 of the 20 germinate, I have 18 seedlings planted, 1 seedling didn't make it because a pesky chipmunk dug it up and broke it off.
I took some of the seeds from the fridge and started to soak on Thursday, Jan 26 and much to my surprise 2 had germinated this morning.
Northern Glitter X Black ambrosia and Nantahala Mankiller X Spacecoast Technical Knockout.
Lets hope the others do as well.
I think if your seeds are mature, dried well and properly stored they will be viable for quite a few years. I mention this because someone had asked that question about age..