I just ordered a bunch of heritage seed, kinda of curious about this topic too.

Some of the stuff I have been reading says to freeze them, I have personally not done this but hopefully someone on here can give us some more info.

Here is some of the info I have ran across.

The best way to store seed long term is in sealed glass containers with a desiccant pack. These should be put in the oven at 200 degrees for 30 minutes to remove all moisture. Then they can be sealed in a jar of seed and left sitting on the counter for a week to remove the moisture. Then put the jar in the freezer. Seed stored this way will give good to very good germination for at least 5 years and can make it up to 10 years.



~The Doctor