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  • Does fertilizer go bad?

    Created by AndreaDenton on

    Does your fertilizer expire or can I use up what I bought last year? Thanks

  • Author
  • #175122

    Eric Vinje

    Andrea –

    Some fertilizers have an expiration date if they contain mycorrhizae fungi, which is a living organism. However, the NPK portion of your fertilizer does not expire and will continue to provide benefits.

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