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Brown roots? Strange...

This is a discussion on Brown roots? Strange... within the General Orchid Culture forums, part of the Orchid Culture category; I rescued an onc intergeneric and the roots on the surface all have brown tips. ...

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  1. #1
    orchidaddict789's Avatar
    orchidaddict789 is offline Senior Member
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    Default Brown roots? Strange...

    I rescued an onc intergeneric and the roots on the surface all have brown tips. The brownness has even progressed up to half an inch down the root tip (as I observed on many roots). Didn't unpot it, but checked the roots below the bark mix and those roots looked fine. I guess this poor orchid has been fertilizer burned? But if it has been overfertilized, why should the brown
    tips occur mostly on roots on the surface of the medium, rather than below the surface as I would have expected? Or is something else wrong with the orchid?
    Last edited by orchidaddict789; August 28th, 2005 at 12:50 PM. Reason: change title

  2. #2
    Diane's Avatar
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    I would venture a guess that the surface roots were damaged by heat or light during their transport to the store. Just a guess...

  3. #3
    jenn's Avatar
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    I don't know for sure if this is true, but I have been told too much fertilizer or a sensitivity to a fertilizer can cause this.

  4. #4
    LJA's Avatar
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    Since it's only the exposed roots that have been affected, I'd have to guess overexposure to heat and light as well, unless the plant got sprayed down (but not soaked) with too much fertilizer or a fertilizer that burns. Otherwise the roots in the medium would have gotten burned too, it seems to me. Hard to say, though. Guesswork, really.

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