Not sure this is the right place as this isn't really a Terrarium and I'm not really a terrarium grower... but someone at a show I went to was once demonstrating how terrariums could be made of anything and some could be quite small.
I'm looking for comments on whether this attempt to raise humidity for my Haraella retrocalla is likely to help. It's based on knowing that moist air falls, and so I'm hoping that even though the top is completely open it will still raise humidity around the plant.
I bought this plant in November and since then it's leaves have noticably wrinkled. The seller said they water twice a week in the winter, but I soon decided that was not enough and went up to daily, even twice some days, and still it's very wrinkled and drying very very quickly.
I believe this plant is one that appreciates high humidity so I've trying to work out how to do that, while it's too cold in my more humid greenhouse.
So this is basically a 2liter pop bottle with the top cut off. The plant mount hangs on the side, I put a little bit of water in the bottom, not touching the mount. Then hang the whole lot back in the window where the mount used to hang.
So... is it going to help, do I need to try and close in the top (possibly putting the top of the bottle back over it

)
This is in the house where winter humidity is not massively low, but is still lowish due to central heating.
