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Relative Light Requirements of Paphs

This is a discussion on Relative Light Requirements of Paphs within the General Orchid Culture forums, part of the Orchid Culture category; I wonder if some of you paph-heads would rate the different types of paphs as ...

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  1. #1
    Aerides is offline Senior Member
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    Default Relative Light Requirements of Paphs

    I wonder if some of you paph-heads would rate the different types of paphs as to their light requirements.

    I have some brachys, parvis, mottle-leaved, plain-leaved and a roth cross (Doll Goldi (sp?))

    Do they fall into sections as to light requirement or do they vary by species?

    Thanks!

    John

  2. #2
    Paphraguy is offline Former User
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    John,

    I don't grow those Paphs but I think they like less light than the larger multifloral Paphs.

  3. #3
    Heather is offline Banned
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    Curious also since you always hear the "mottled leaf=lower light" vs. "strap leaf=higher light" rule of thumb. The parvis I am not really sure of, but so far keeping mine in lower light than the multiflorals and most of the phrags. I would think maybe your roth hybrid might like brighter light, but not sure about the other parent.

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    edcramer is offline Member
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    Default Paph light requirements

    Hi, Do you grow your paphs in a greenhouse, at a windowsill or uder artificial lights? The requirements of course would be the same, but shade or partial shade in a greenhouse would be perhaps be different from that of a windwosill or under the lights. If under artificial lights there would be a difference growing paphs under high intensity lights and fluorescent lights. Wherever you grow your paphs I think a little experimentation would be helpful. Ed

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    Forrest is offline Senior Member
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    Hello John. That is a pretty wide range you are addressing there. Some will be happy with Phal type light and some would be happy hanging out with Dendrobiums. Without trying to address the entire genera my suggestion would be to increase the light until it spikes. If you have any plants in particular that you would like to talk about then it would be easier to get more specific.

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    Aerides is offline Senior Member
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    That's definitely fair. I just thought that there might be rules of thumb similar to what Heather was getting at. Couldn't be that simple, though. There would be no reason to assume that Paph micranthum and Paph armeniacum would be grown in similar light conditions even though they are both parvis.

    But I have heard diametrically opposing viewpoints regarding the same species! Paph micranthum, for example. I asked a vendor why mine may not be blooming, although blooming size and he suggested I may be growing it too bright. A few months later I read that micranthum can (after aclimitization) be grown in very bright light. Huh?

    With the parvis I expect it might be more of a temperature thing. Oh well, I've rambled about this before, and probably will again. Thanks for your patience. Just fishing for some pearls of wisdom!

    John

  7. #7
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    Quote Originally Posted by Aerides
    I wonder if some of you paph-heads would rate the different types of paphs as to their light requirements.

    I have some brachys, parvis, mottle-leaved, plain-leaved and a roth cross (Doll Goldi (sp?))

    Do they fall into sections as to light requirement or do they vary by species?

    Thanks!

    John
    There's an immense deal of variation, even among different plants of the same species. In general, from what I've heard (and I am positive other people do things differently), things like strap-leaves paphs are near the top. Among those, philippinense, glanduliferum/wilhelminiae, roths are more light-loving. I have heard from reliable sources that platyphyllum does NOT like light, and sanderianum & kolopakingii not nearly as much light as the previous species. I don't believe brachys & parvis normally don't grow in as much light as a strap-leaf, but most of them seem to appreciate good filtered bright light. People say that a brachy given too much light may curl its leaves around the edge of the pot. micranthum & armeniacum seem to grow on northeast facing cliffs, suggesting lower light, but I give them bright light and they do fine. I think the limiting factor on blooming these two species is temperature--they need a real extended winter chill from what I hear.

    Plain leaves paphs fall in many groups, from the aforementioned strap leafs, to the "complex" types, sequential multflorals such as primulinum, and a slew of various species. Mottled-leaf paphs are content in relatively low light, but are rather tolerant. They will produce the best looking foliage in low light, however. Reasonably bright light will help them bloom and look good at the same time.

    Dollgoldi will appreciate bright light, maybe not roth levels, but much brighter than the mottled-leafs.

  8. #8
    Aerides is offline Senior Member
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    Thank you Jason! That was very helpful indeed.

    P.S. Wouldn't north-east facing cliffs on the outside (of course cliffs *would* be on the outside ) be about as bright as you can get without much, if any, direct sun - more than most people have on their windowsills?

    John

  9. #9
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    I don't know. Maybe it would be roughly equivalent to an unshaded bright east exposure? I'm talking out of my ass, of course. :P

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    Heather is offline Banned
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    Lol! Well *that* was helpful!

    In one of those, pulling out of the a** sort of ways...guess I'll just play around a bit w/ the nebulous ones! LOL!

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