Answer: If the seeds have been stored in a cool, dark location in an airtight package, they should remain viable for 3-4 years. If the packets have been exposed to heat, cold and humidity, the seeds they contain will be of questionable value. I'd purchase fresh seeds in the springtime rather than rely on the old seeds. You'll be much happier with the results! If you have any leftover seeds, seal them in a jar and store them in a cool, dark location. They should be fine for another year or two if properly stored.
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