Live sphagnum moss???
 

I am not talking about using live sphagnum moss deliberately as medium. What if your dormant sphagnum moss turned live and is growing? I am wondering if it would be an issue. These are original dormant 2 years ago but came to life a year ago. Right now, it seems to be growing thicker. I find it, now, it takes a lot more water before the medium would get saturated. In the past, I could saturate the medium pretty quickly and water would begin to run out at the bottom of my basket. Right now, not so much.....

https://farm5.staticflickr.com/4521/...30ddfea4_h.jpgsheepsheadbaytok11-20_0050 by vracing, on Flickr

Not an issue at all. With very small plants, it could grow over them, but a plant that size should be fine.
As long as the plant doesn't mind the moisture level that the moss holds, it's no problem.

I agree with fishkeeper, it won't harm it. I have to wonder though, is that really spaghnum or something that seeded (spored) in?

Thanks...yeah, these are real sphagnum moss grown from the Better Gro dormant version....I removed the original media on this dendrobium when I first got it more than a year ago.

I find that fascinating, I had a hard time keeping it alive as a matter of fact I couldn't.

Well, somehow, this dendrobium, which is positioned away from any strong direct wind current from my fans and getting PLENTY of light, seems to be able to keep these moss alive for a long time too. I use dormant sphagnum moss on all of my orchids, from the same bag. Most of them either seem to promote other plants to grow from it...ferns and some weed. heheheh.....

I guess the condition requires them to flourish would be wet to dampness and plenty of light. And no direct air flow to it.

That is definitely sphagnum.

Sphagnum requires basically the same conditions as carnivorous plants. Bright light, constant moisture, low pH and low nutrients.

I have tried to grow it in my bug eaters but it never lasts.

It does much better for me outside.