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Ascocentrum curvifolium: Problem: Help Requested

This is a discussion on Ascocentrum curvifolium: Problem: Help Requested within the New Growers: Ask the Senior Members forums, part of the New Growers category; Hi. I see some dark ends on the aerial roots of my Ascocentrum curvifolium, and ...

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  1. #1
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    Default Ascocentrum curvifolium: Problem: Help Requested

    Hi.

    I see some dark ends on the aerial roots of my Ascocentrum curvifolium, and I also see that the branch with new blossoms turns dark, too. What could be the reason?
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    Looks like this orchid is too dry. The air roots should be misted often and the humidity should be keep at 50 – 70 % (relative humidity).

    Cheers,
    BD

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    Looks a little too cold as well. What temp' is it in ?

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    32 to 34° Celsius, I live in Jamaica...

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    I agree it looks too dry. Try immersing the root system and giving it a good soak (15-20 mins) everyday. That's what I do with my asco. it flowers a couple times during the summer/autumn.

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    Immersing and that for 15 to 20 minutes? Okay, thanks a lot! I will try this!

    For now, I have them in a shower room where the shower is used each day between 2 to 6 times, but only for 5 minutes. The plant would therefore receive some humidity in the air, and a little water but those amounts each day. But I am going to change it to a submerging.

    I was maybe too careful to avoid root destruction by water...

    In addition, wit this plant am trying out something else, too: I have one of the seven aerial roots being in soil with the last inch of it's length, to see how it handles the continuous contact with soil. It is a loamy soil, and i make sure that the soil gets only a limited amount of water. After one week of being inside soil with the last inch, that root still looks fine.

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    HELP AGAIN!

    I immersed the plant in a pot full of water (and a little bit 20-20-20 fertilizer in it), each day for around 1 to 2 hours. Is that too much? Additionally, because someone told me they need a high air humidity, I spray them with water in between. Each time I shower they get their share on humidity and water drops (they are in my bath room). Also, maybe a little bit to experiment, I put the last inch of one root into soil, and the last inch of another root into fertilized water.

    Problems I am recognizing now:
    - aerial roots get thinner, become brown (instead of white or green when wet)
    - two more leafs start to turn yellow at their tips

    I need a watering guide for the Ascocentrum curvifolium, just some instructions. Also anything beyond just the watering.
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    I would not use fertilizer in the pot the root is in. Just me. They need so little fertilizer, I would worry the leaf ends would burn/brown from constant fertilizer. 1 to 2 HOURS of total root immersion into water may be excessive. Drop back to 15/20 minutes, maybe twice a day.

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    Thanks! I appreciate your help. I will do it this way.

    Are there more opinions and advises?

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