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  • 4 Post By catttan
  • 2 Post By opaline
  • 3 Post By Cjcorner
  • 1 Post By OrchidAddict

Iwan Apple Blossom Woodland Yellowing Leaves

This is a discussion on Iwan Apple Blossom Woodland Yellowing Leaves within the Cattleya Information forums, part of the Frequently Asked Questions category; Hello, I'm new to the hobby and have picked up several Orhids of various types, ...

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  1. #1
    imnadid is offline Junior Member
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    Default Iwan Apple Blossom Woodland Yellowing Leaves

    Hello, I'm new to the hobby and have picked up several Orhids of various types, couple of Phal.'s, Charry Baby, and one I have no idea...recently (3 months ago) picked up an out of bloom Iwan. Apple blossom Woodland HCC/AOS for $5 at the local nursery. Got it home and repotted it in Espoma organic orchid mix and had it sitting in an east facing window behind a vertical blind. Some of the leaves started yellowing and have not really gotten any better, and a few have fallen off. I see new root growth, and a new sprout that has continued to grow, watering once a week to once every two weeks. The new sprout has no yellowing, but the existing plant still not doing so well. I moved the plant out of the window and down out of the mottled light...I'll attach some pictures. Any suggestions?

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  2. #2
    cakedaddy's Avatar
    cakedaddy is offline Senior Member
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    Default

    Definitely looks like sunburn! The burned leaves won't recover, but I suggest you allow them to remain on the plant as they act as nutrient reservoirs. Catts can take LOTS of light, as can most orchids, but the light level must be raised incrementally to allow the plant to adjust.
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  3. #3
    Jef09071984's Avatar
    Jef09071984 is offline Senior Member
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    Sunburn i think, mybe your plant dont have much light before it was sold so the leaves where burned when you put it in the window. expose the plant to the brigth ligth little by little.

  4. #4
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    catttan is offline Senior Member
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    I also think that's sunburn. BTW that plant doesn't look like an Iwanagaara, more like a Dendrobium.

  5. #5
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    Have to second Yew with the Dendrobium. The canes are trademark of a dendro. The more established cane has finished flowering and will need to wait till the younger canes mature. The leaves have scorched by the sun so harden the plant off against the elements gradually. No sudden changes. If you can turn a blind eye to the damaged leaves leave them on. They are useful to the plant as a whole. I like your control over the watering regime and the roots are a super healthy start and good sign increasing the potential for this plant to flourish for you., you can thinly!!!!! drape some moss over the top of the roots bark to aid humidity. Let roots breathe though. so dont pack to tight.

  6. #6
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    Maybe your dendrobium was in very low light when you bought it. I agree with the above...maybe you got labels switched?? I do that alot! lol Or I buy them thinking they are one type and you get home and find out it has the wrong tag. I'm sure many others here have had the same happen. If your plant is growing a new lead, perhaps a little time and slowly easing back into the sun will help. If the canes begin shriveling i'd begin watering maybe every five days or so, but with the current regimen you should have no bad roots. Sounds like all your plant needs is a little time. It's normal for orchids to shock a little when thier environment is radically changed. Going from a greenhouse to the dark store and then to your sunny window was probably a shock and it'll start looking better soon. Also; it's normal from adult canes to drop leaves when shocking...good luck! Can't wait to see your flower pics when it recovers.

  7. #7
    Brutal_Dreamer's Avatar
    Brutal_Dreamer is offline Dreaming with my eyes open...
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    I believe that is a dendrobium and not a cattleya type plant, but regardless, it has sun-exposure issues. It will recover. Just do not put it in direct sunlight or where direct sunlight can be directed onto the plant through a reflection, ect...

    cheers,
    BD

  8. #8
    OrchidAddict's Avatar
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    Cool

    I agree with all the others that this is definitely a dendrobium of some sort. I have a dendrobium that looks exactly like it (meaning that the appearance and habit of the plant are the same...not the yellow leaves). One of the great things about dendrobiums is that some of the older canes can drop leaves and look pretty sad after sunburn or stress, but they are still very much functional as energy storage reserves, and occasionally you might actually get a surprise spike on one of the old canes, even if looks like the plant is done with it.

    I've had leaves yellow from time to time even when there is no obvious sun overexposure or any other conditions that would trouble the plant. I think sometimes leaves yellow and begin to drop on older canes when the plant is putting its energy into growing new canes, which yours definitely is. Although if you recently bought it and the yellowing is a new development, I would definitely agree with the too-much-sun theory.

    At any rate, that healthy new cane is GREAT news. As long as that baby keeps going, your plant will be fine. You may end up losing some of those old yellow leaves when all is said and done, but it's nothing to be too upset about. Dends are tough plants, and yours will sort itself out. I do agree with the others that you should probably back off the sunlight for a little bit to let the plant recover...but what I've found with mine is that the most important thing is that the new growth doesn't show any signs of yellowing. There's lots of reasons old canes can show signs of stress...many of which may have happened before you even received the plant...but as long as the new cane is growing in healthy, your plant will flower on the new growth when it's mature, and your other canes will still serve as energy reserves, even if they do look a bit unsightly.

    There's no reason to panic here. Give your plants plenty of TLC, enjoy watching that new cane grow in, and make sure you share the pretty bloom pics with us when it finally reveals itself! Good luck!

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