Answer: Properly stored seeds will last for several years. After 3-4 years, though, they may lose viability, and the germination rate will be considerably less than when the seeds were fresh. You can test germination rates each year by placing 10 seeds between damp paper towels and placing them in a plastic bag. Check in 7-10 days. The number of seeds that sprout will be the percentage of germination you can expect when planting that year. To store seeds, place them in an airtight container and put them in a cool, dark area, such as a basement or back of a seldom-used closet. If you eliminate light, moisture and heat, your seeds should remain viable for several years.
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