um, my seeds that i started 11.23.07 were from various baggies collected over a 2 year time. Out of 23 seeds I selected out of the 50,000 or so (a HUGE baggie from an ex-dealer!) 3 didn't germinate. But he kept them in a dark, locked safe! But a film canister in a dark, cool cabinet/drawer somewhere works. Make sure you label it, don't want to get to the local photo hut with a canister of seeds!