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  • Does fertilizer go bad?

    Created by AndreaDenton on June 12, 2015 at 10:13 am

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

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  • June 13, 2015 at 7:40 am #175122

    Eric Vinje
    Keymaster

    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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