i grow my 2 as a highlander, my largest plant came to me recently and is adjusting rather well to my conditions, lots of nectar on the leaves of the main plant, but as it is beginning to vine, i dont expect pitchers on it...however it has a healthy large group of basals forming, time to start pitchering again ;p
my smaller N. gymnamphora grows at a pretty steady rate, a new leaf every 3 weeks or so, new pitcher about the same time frame, generally as a new leaf is descending its tendril, a pitcher is about to open. i grow these plants in 2 different mixes and 2 different styles of pot. my smaller one is in peat/perlite/lfs/osmunda fiber/sand/orchid bark, while the other is in a coco husk/lfs mixture i believe *from previous grower* this plant from what i can tell, does better with slightly lower light levels, higher light levels just make it grow slower in my experiance, and it needs adequate humidity, i also find this species like to keep a little more wet than some of my others, could be because of its basal forming habit, thats just a hunch, idk.
My conditions for the plants are as follows, and vary between the two
The smaller plant, gets lighting from 4 2 foot t8 bulbs. humidity is about 70% in the day and around 90% at night. temperatures in the day hover around 60-70 degrees *its winter here still lol*
and night temps in the 50s to upper 40s. temps are the same for both plants, humidity for my larger plant is quite a bit lower, probably 40-50% days and 60-70% nights....
lighting for my larger comes from a single 8 foot 2 bulb fixture.
Soon it will be back to the greenhouse for my highland babies....