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Miserable Miltoniopsis!

This is a discussion on Miserable Miltoniopsis! within the Orchid Ailments / The Compost Pile forums, part of the Orchid Culture category; i have not had a problem with glazed pots, but mine are mostly only glazed ...

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  1. #11
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    i have not had a problem with glazed pots, but mine are mostly only glazed on the outside, not on the inside. they don't breathe enough, so i normally avoid them except for display plants and a few small epidendrums that don't put out a long of roots that go everywhere.

  2. #12
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    I had never heard of glazed pots not being used due to toxicity problems, very interesting!

    Also, as for my two cents, I concur that it was likely a watering habit problem.

    I had a similar issue with a neofinetia. It finally got new growth, put it in a terrarium from a windowsill, watered it the same way and BAM. Rotted new leaf.

  3. #13
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    Quote Originally Posted by coeruleo View Post
    i have not had a problem with glazed pots, but mine are mostly only glazed on the outside, not on the inside. they don't breathe enough, so i normally avoid them except for display plants and a few small epidendrums that don't put out a long of roots that go everywhere.
    My larger pots are mostly glazed on the outside-only (or not at all), because the bigger ones don't breathe enough to be glazed inside and out, so I'm with you there. But with my smaller plants...species phals, young paphs, etc, I've found that plain clay pots dry out too quickly. I was having problems with the leaves starting to wrinkle on my small plants in clay pots. And then if I watered more frequently to compensate, I'd get fungus and mold in the bark, and the fungus would attack the plant roots. I tried putting the plants in sphag to retain more moisture, but any clay pot with sphag in it just grows all sorts of science-experiment-like crap all over it, so now I try to avoid sphag...but then I'm back to the "drying out too fast" problem. And watering more to compensate just invites more fungus and mold.

    I seem to have struck a happy medium with my small glazed pots. I use a mixture of coarse bark and LECA pellets, or just coarse bark, depending on how much moisture the plant prefers around its roots. The glaze helps keep enough moisture in so that the plant doesn't dry out, but the mold and fungus isn't attracted to the glaze, so I tend to not have mold and fungus problems in those pots. It holds moisture just long enough. But like I said, these are small pots...probably about three and a half inches across the top, so they tend to generally dry out faster than larger ones.

    I've got a pretty good system down that seems to be functioning quite well...I'd hate to have to repot everything into a different type of pot. But like I mentioned before, I did have a couple of orchids that had severe reactions to the glazes in their pots. It was pretty obvious pretty early on, though, so I think if there were a problem with my small pots, I'd know about it by now. Of course, if the glaze starts to break down in 25 years or something, I may be telling a different story!

    Does anyone know if the glaze bothers other plants, too, or is it just orchids that are sensitive?

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    Quote Originally Posted by HHLL38 View Post
    I had never heard of glazed pots not being used due to toxicity problems, very interesting!

    Also, as for my two cents, I concur that it was likely a watering habit problem.

    I had a similar issue with a neofinetia. It finally got new growth, put it in a terrarium from a windowsill, watered it the same way and BAM. Rotted new leaf.
    Thanks for weighing in. I hope your neofinetia is doing better! (I have no idea what that is, by the way...I'm about to go look it up! LOL) I'm going to be super-careful about how I water this plant from now on! Hopefully it will forgive me and still bloom sometime in the next few months!

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    the crazy thing is, i dont really have a set watering schedule, and all mine just seem to grow haha... its been depressing weather though, for the last couple days its been dreery/rainy and dark out... So it prompted me to look up LED grow lights for the darker days...and I really want to try using one.

  6. #16
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    A glazed pot should not, under any condition orchid are grown, leach any chemicals! They are in practice covered with a thin layer of inert glass.
    As a chemist I would worry much more of different additives in the plastic used in plastic pots but obvious it is not a problem for the orchid there either.

    /M

  7. #17
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    Quote Originally Posted by orchidbaby View Post
    the crazy thing is, i dont really have a set watering schedule, and all mine just seem to grow haha... its been depressing weather though, for the last couple days its been dreery/rainy and dark out... So it prompted me to look up LED grow lights for the darker days...and I really want to try using one.
    I've been trying to go less regimented with my watering as well. Trying to get a feel for when a plant needs to be watered, instead of watering it just because it's watering day. Also, I recently purchased a LED grow light, I started a thread in the Grow Light section of the board if you were interested in my experiment/results.

  8. #18
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    Quote Originally Posted by OrchidAddict View Post
    Thanks for weighing in. I hope your neofinetia is doing better! (I have no idea what that is, by the way...I'm about to go look it up! LOL) I'm going to be super-careful about how I water this plant from now on! Hopefully it will forgive me and still bloom sometime in the next few months!
    I think I may lose the growth that the rotted new growth came from, but thankfully Neofinetias grow distinctly different growths in the form of fans (much like phrags). So the main growth is fine, it's just one of the babies I lost. :P

    Also, anyone care to let me know what the technical term for growing like phrags and paphs and neos is?

  9. #19
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    Quote Originally Posted by Magnus A View Post
    A glazed pot should not, under any condition orchid are grown, leach any chemicals! They are in practice covered with a thin layer of inert glass.
    As a chemist I would worry much more of different additives in the plastic used in plastic pots but obvious it is not a problem for the orchid there either.

    /M
    Wait, wait...so you're saying that the glazed pot issue is actually a myth? That there's no reason not to use glazed pots? That would be fantastic!

    If there's science to back this up, I think there'd be a lot of happy orchid growers out there who could put their orchids in pretty pots with a clear conscience! Can you refer us to any scientific evidence of this on the web?

    And if plastic pots could pose a problem, why are all nursery pots plastic? Or are they made from a special kind of plastic that is guaranteed to not be harmful to plants?

    I'm really curious about all of this now!! Thanks, Magnus!

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