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Thread: cattleya dowiana roots

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  1. #1
    My Grow Area
    On a Windowsill.
    Favorite Orchid(s)
    Cattleya
    Join Date
    Jan 2007
    Location
    Obninsk, Russia
    Posts
    10

    Default cattleya dowiana roots

    My cattleya dowiana's new roots are black and dry at the ends. She was very healthy till now and has two young pbulbs. One is mature pbulb and one is not mature. I water her weekly. What is the reason for roots drying? Is it dangerous?

  2. #2
    Real Name
    Clint M. Dawley
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    Cattleya Alliance
    Join Date
    Jun 2005
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    Fort Worth, Texas
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    2,743
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    Default

    Root tip die back can be do to low humidity. Root tips blackening is usually an indication of over-fertilization. Try leaching the pot and put it in higher humidity. These plants can decline quickly in the winter..but this is usually indicated by a p-bulb turning black and the infection spreading.


    Quote Originally Posted by Blanka View Post
    My cattleya dowiana's new roots are black and dry at the ends. She was very healthy till now and has two young pbulbs. One is mature pbulb and one is not mature. I water her weekly. What is the reason for roots drying? Is it dangerous?

  3. #3
    My Grow Area
    On a Windowsill.
    Favorite Orchid(s)
    Cattleya
    Join Date
    Jan 2007
    Location
    Obninsk, Russia
    Posts
    10

    Default

    Thank you, clintdawley.
    Humidity was about 30%. I had replaced the plant to another room where humidity is 45-50% now. May be it will help. p-bulbs are good but some leafs is brown at edges. But it is not a rot, these leafs are such from summer and they are dry.

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