I have about 25 seeds collected over the last 2 years (mostly freebies). LSD, Rocklock, Chronic, Sour Cream, Motavation, Hashplant, Industrial Plant, etc. Thinking about sproutin' a few. Shelf life?
a long time from my experience. My aunt actually just had a great grow from seeds that were 10+ yrs old..
2 years easily if they werent left in the sun. Similar to above posted I had seeds collected 10 years prior, I got about a 70% germination rate and they were fine. (seeds were harvested by a friend and some were not mature is why the germ rate was so low) Its hit or miss depending on moisture and temperature. Not too much of either they stay good for ages. But 2 years, they should be just fine.