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  • 1 Post By Cjcorner
  • 2 Post By Ron-NY
  • 2 Post By angela
  • 1 Post By maggs

Sphagnum is getting green---algae??

This is a discussion on Sphagnum is getting green---algae?? within the New Growers: Ask the Senior Members forums, part of the New Growers category; Hello Maggs here, I have a phal . of which I had posted a pic. ...

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  1. #1
    maggs is offline Senior Member
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    Default Sphagnum is getting green---algae??

    Hello Maggs here, I have a phal. of which I had posted a pic. a few weeks ago when there was just one flower, I have the plant in a transparent pot with sphagnum and it has gotten a nice strong leaf coming out of the center along with new roots too, but I notice that the sphagnum is getting green stuff on it because I have the plant resting inside a clay pot so as not to tumble over and it is on my back step getting some sun(about half hour in the morning) there are other orchids in pots along the steps too, but I noticed this one has that on it the others are in orchid clay pots in the regular stone etc. please tell me, is the green stuff dangerous for the plant or can I leave it there and move the pot, or change the sphagnum or should I remove it all together from that medium and get it into the stone etc. I had it there before and it was struggling to grow because it had gotten some damaged roots I managed to save the plant and decided to use the sphagnum for a while until it had established a generous root system that I could see through the transparent pot. We have entered rainy season now so there would not be much sun in that area and sometimes the wind would blow rain on the step so I do not water them at all in the rainy season.

  2. #2
    Cjcorner's Avatar
    Cjcorner is online now Senior Member
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    Default

    Generally you repot a phal when it is growing new roots and leaves. If the spag. starts smelling bad you can repot. I cannot raise orchids in spag. and plastic pots or I rot all the roots off. Of course, I live in humid Florida. I know a lady here that repots all of her phals every spring. I repot mine when they begin climbing out of the pot. I use a standard mix with packing peanuts at the bottom.

  3. #3
    Ron-NY is offline rothaholic
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    Default

    The algae on top of the Sphag is not an issue

  4. #4
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    angela is offline Senior Member
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    Hi Mags,

    I think you will eventually need to get some "local" input on this. There are a few other Forum Members from Trinidad, I hope they see this and respond to you.
    My climatic conditions are a bit similar to yours, except that I believe the humidity levels in T'dad are much higher than B'dos. I made a decision a long time ago that Sphagnum and/ or wood chips in anything was not for me. The wood chips break down too quickly, and the Sphag. is a sure recipie for root rot (for me). I grow just about any potted orchid in a mixture of Aliflor(clay pellets) and charcoal. If I have repotted something I might put a little Sphag on the top for a few days just to get the roots started, then I remove it. I must point out that using my kind of growing medium you have to be in complete control of your watering. You will be watering more often than if you were growing with Sphag. I like this because when the rains come in I do not have to worry that the plants are remaining wet. I grow everything outside, some in shade houses.
    As I say, this works for me. Hope you will get other responses.

  5. #5
    angela's Avatar
    angela is offline Senior Member
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    Hi Mags,

    I think you will eventually need to get some "local" input on this. There are a few other Forum Members from Trinidad, I hope they see this and respond to you.
    My climatic conditions are a bit similar to yours, except that I believe the humidity levels in T'dad are much higher than B'dos. I made a decision a long time ago that Sphagnum and/ or wood chips in anything was not for me. The wood chips break down too quickly, and the Sphag. is a sure recipie for root rot (for me). I grow just about any potted orchid in a mixture of Aliflor(clay pellets) and charcoal. If I have repotted something I might put a little Sphag on the top for a few days just to get the roots started, then I remove it. I must point out that using my kind of growing medium you have to be in complete control of your watering. You will be watering more often than if you were growing with Sphag. I like this because when the rains come in I do not have to worry that the plants are remaining wet. I grow everything outside, some in shade houses.
    As I say, this works for me. Hope you will get other responses.

  6. #6
    maggs is offline Senior Member
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    Hi Angela, thank you for the input, I moved the three phals I have into the house because of the rains and so I can control watering, I have them very close to a window I will leave them to dry right out especially the one in the sphagnum but I am thinking that I will move it out of that medium or maybe just remove some of the wet sphag. so that no root will rot and still leave it indoors, the two others are in clay pots with the stone, charcoal and coconut chips and are healthy so I will wait to see what happens with this one. All other orchids like the dens. epidendrums and others are out on the steps where I always had them before I got onto orchids in a more informed way, I have some going into the flowering stage now.

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