How long can seeds survive in storage?
Seed longevity depends on storage conditions and seed quality. We expect most undamaged seeds that are properly dried to survive about a hundred years in conventional storage (-18C) and about a thousand years under cryogenic (liquid nitrogen) conditions. What is the oldest live seed? The most reliable studies show some seeds in soil at archeological sites surviving for 100 to 1,700 years. (e.g. Odum 1965. Germination of ancient seeds: floristical observations and experiments with archaeological dated soil samples. Dan. Bot, Arkiv 24(2):1-70; Shen-Miller, J., Mudgett, M.B., Schopf, J.W., Clarke, S., and Berger, R. 1995. Exceptional seed longevity and robust growth: Ancient sacred lotus from China. American Journal of Botany) Store seeds carefully by placing envelopes inside large glass jars with a bag of silica. This product absorbs excess moisture. Reuse the tiny bags of silica gel that come inside new shoes–dry them for a few minutes at a very low temperature in your oven. The best j
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