Hi,
Thanks everyone,
Ron,
It is potted in live sphagnum, and the pot sits inside a plastic bag, so obviously humidity is high. Warm temperature: 73 to 84 degrees F night/day. It is six inches below a 54W (T-5 bulb). I might seem close, but since the grow space right below the light was occupied already, I had to place it out on the side. So to give it decent lighting I placed it higher, and tilted the pot towards the light.
I've read that N. truncata when grown to a certain size can start to have leaves much bigger than the previous one, but I hadn't expected to see this at this size. Another thing that surprised me is how quickly the new growth has been released from the latest leaf. That might hint something about the over-all growth rate. It will certainly be interesting to see what happens in the coming weeks.
Regards,
Christer