That pretty well sums up the humidity issue and indirectly the use of terrariums!

I agree with all, except I'm curious about the Nepenthes.
My experience living in the upper midwest is my Neps do fine all spring, summer, and fall. When I bring them inside in the winter with lower humidity their pots turn brown now matter how much I spray and water them. Next spring, outside they go and pots sprout like crazy.
My question is, I know you can GROW Nepenthes in Arizona, but how well do they set pots?

dnieter,
The problem you are having is that you are changing there environment every year. Neps seem to not like being moved from location to location.
I started out the same way. Growing a few outside spring through fall and inside over winter. One year I left them inside and they adjusted and pitcher with no problems at all.
I grow many this way now on a south facing sliding glass door. Lowlander and highlanders beside each other. I do notice the highlander do better in the winter with the cooler temps, and the lowlanders do better in the summer.
Check out my link to my nep page.

Here is a link that might be useful: Nepenthes Page

I've been in elgecko's kitchen and the humidity was reading 35%.... and his hamata and vebtratas were jaw-dropping!

Hi Dnieter,

My Nepenthes (N. ventricosa) and Pings are grown inside under 12,800 lumens of light. I have never moved it once it was acclimated. Acclimation took long enough, now it is putting out a new leaf almost every week with pitchers of 4 1/2 to 5 inches. The pitchers are stunning and ones grown in November are still on the plant. I also mist it a couple of times a day.

I think your Neps are going through a bit of shock from being moved. As I understand it with Neps, the less disturbance the happier they are. I know I will have to move mine soon, it is getting to big and needs to be hung. I am just putting it off as long as possible.

Nycti