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Questions About Ostrich Ferns

  • Answered by
    GKH_Susan on
    June 23, 2020
    Certified Expert

    Black is never a good sign. A hopeful possibility is leaf burn from over fertilization. If that could be the case, hold back on the fertilizer and leach out the soil with water. I notice too they are between hardscaping. Perhaps the soil is staying too moist.

    A darker scenario is root rot. Discard the infected fronds and move healthy stems to fresh soil.

    Here are the requirements for Ostrich fern:

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