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Vanda yellow, shriveled roots

This is a discussion on Vanda yellow, shriveled roots within the Genus Specific forums, part of the Orchid Culture category; The Vanda that I recently bought in the clay pot still has firm leaves but ...

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  1. #1
    Traci's Avatar
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    Default Vanda yellow, shriveled roots

    The Vanda that I recently bought in the clay pot still has firm leaves but the roots are looking a bit yellow and some are green but shriveled. I soak the clay pot daily and j use regular water and not distilled like I do with my other orchids. Any suggestions on culture would be greatly Appreciated.
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  2. #2
    Charlie_76 is offline Junior Member
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    I hope your able to take it back to the store and get another one. I liked the way it was potted up. I potted mine up this morning. Since it's potted I watch how I water it so I don't get root rot.
    Posted via Mobile Device

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    ksriramkumar is offline Senior Member
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    Looks like a root rot to me. treat it with systemic fungicide immediately or returning is an option, return it and get a healthier one.

  4. #4
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    Thank you for the response. I went ahead and treated with physan 20. Once the roots dried they didn't look quite so dark or yellow. Perhaps I was watering too often? Every day versus every other which is what the label said to do ? I feel bad taking it back because I feel like it's my culture error and not the fault of the store. I will not water it tomorrow at all and go to every other day.
    Last edited by Traci; July 24th, 2015 at 11:14 PM.

  5. #5
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    I'm concern for the root,it need to dry out before watering again .i'm not confidence with the pot method with the vanda.

  6. #6
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    I think part of the problem is that the humidity where I had it wasn't high enough. Even though where the other orchids were it was 50% the area somehow where the Vanda was located was only 10% to 20%. I guess it shows how grouping plants together really does boost humidity. So it was getting watered and the top roots were drying out too much so I was watering it daily and the bottom roots in the pot where I can't see them were staying wet which maybe led to the rot. Also I think this caused the velamen to start shriveling up. I have since moved it outside into the shade where I can keep a close eye on it and the humidity is 46% to almost 80% right now. Right now the actual temperature out there is 97 degrees. Tomorrow I plan to mist it with some seaweed solution to see if that will make it happy. If I can't correct it like it is, I will have to break the pot to see the roots at the bottom to see how much is still good.
    I read that one is not supposed to cut vanda roots. Should I not even trim the rotten ones off?

  7. #7
    78Terp's Avatar
    78Terp is online now An Avant Gardner
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    I trim my dead or rotted Vanda roots.

  8. #8
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    Traci, living in Louisiana how do you have only 10% RH?! Maybe you might measure it wrong?!

  9. #9
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    I was attempting to keep the Vanda inside in a very sunny windowsill while acclimating it to go outside. I'm not sure why this area was only reading 10%. I know my gauge is sometimes off by as much as 15% so it's likely it was 30%. I have a dehumidifier that is a much more reliable measure so I will plug that in and get a better reading. I'm seriously considering making a sling psychrometer to use instead of pushing that de-humidifier in to get a reading. In the meantime I have moved the Vanda into the shade outside where it's extremely humid. I'm really thinking if it doesn't turn around I will have to break the pot to get a good look at the roots and get rid of any rotten ones.

    ---------- Post Merged at 10:19 PM ----------

    The de-humidifier typically gives readings in the sun room of 55-80%. Will check in the morning to see what it is.

  10. #10
    Charlie_76 is offline Junior Member
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    I hope that there's still some healthy one's. From the looks of the pictures there should be some good ones left. I'm trying to hold on to my Ascocenda miniatum. Everything I try to do I loose a root. There's not many left. I'll be happy if I can keep it alive through the summer.
    Posted via Mobile Device

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