Seed Expiration - Knowledgebase Question

Indianapolis, IN
Question by gglanders
February 24, 2001
I have numerous opened and unused and unopened and unused vegetable seed packets from last season. Can I use them again for this season or do they expire with time?


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Answer from NGA
February 24, 2001

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Germination rates will decrease over time, but most seeds will be viable the second year as long as they were stored dry and at a fairly even temperature. Corn, lettuce and onion seed should be replaced, however. You might plant a little heavier to compensate for it being older seed.

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