Answer: Seeds begin to lose viability as they age so they should be used as soon as practical. It's a little late in the season to start vegetable and flower seeds so I'd suggest storing the seeds in a cool, dark place until next spring. I put my half used seed packets in a mason jar (or a plastic baggie) and set them on a lower shelf of a cabinet or linen closet - somewhere away from heat. Your seeds should last about 3 years before theres any noticible drop in germination. Be sure to mark on your 2009 calendar (March is a good month) that you have seeds stored. This way you won't forget to plant them.
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