Terrarium Trouble

PunnkinFebruary 15, 2012

Hi, I recently got my roommate a DIY terrarium kit about a month ago and put it together for her. I liked it so much that I've started building my own moss terrariums. The trouble is that yesterday we checked hers out and most of the moss has turned a sickly brown. I know the moss that came with the kit was a simple sheet moss. Is there any way to revive it for her? What could have caused it to start dying?

I'm afraid now that the terrariums I built on my own will take the same turn. :( Can anyone help me?

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The main problem with having a moss terrarium is the external temperature of the room. Moss like it cold. That means the highest temps should be no more than 65F though some can handle it warmer for short periods of time.
Also water must be distilled not tap ever.
And moss does not like intense light.
Just what kind of substrate did you put your moss on?
You may want to get some felt and try it only on a couple of layers of felt, available at a yardage store.

    Bookmark   February 15, 2012 at 10:30PM
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The moss is most likely dormant..Try keeping it away from the sun, and misting it often.

    Bookmark   August 28, 2012 at 10:17PM
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paul_(z5 MI)

I would have to disagree with a carte blanche statement about mosses like Tm made. There are many mosses that require quite a bit of light including a number that can take full sun. Furthermore, many do not require cool temps ... temps in the 70's and even the 80's is fine depending on the type of moss and the locality to which it is native.

What kind of air circulation did you (via the kit instructions) provide? Also what kind of lighting?

Stagnant moist air, like that in a typical sealed terraruim, often provides perfect conditions for molds/fungi -- some types of which can lead to the demise of mosses or other plants.

Furthermore, if the terr was in a location wherein the sun shined upon it, then it is possible that temperatures in the terr soared to lethal levels. This would be even more problematic if the terr was sealed. (Think about a closed up car sitting in the sun for even a short length of time.)

Additionally, you must consider the stress the moss likely under went. Was the moss you used alive in a plastic bag? Sheet moss like that is often grown in conditions of extremely high humidity (frequently levels of 90-100% RH). The resulting vegetation is not adapted to tolerate suddenly existing in markedly lower humidity levels. When confronted by such conditions, massive die off is generally inevitable.

Hopefully the kit included media very similar to that which the moss was raised on. If not, that too may have been a part of the problem.

If there are still living sections of moss, yes it is possible that those living areas will grow to eventually fill out again. If the browned out areas of the moss are dry/crunchy, then desication was most likely at least part of the issue. If the brown outs are slimey, then fungi -- perhaps in conjunction with the other possible issues mentioned above -- may be the culprit. Slimy areas should be removed.

Happy planting!

    Bookmark   October 18, 2012 at 3:09PM
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