I've recently got one of these and its doing great so far, but I'v only had it fro about 2 weeks. Mins just a baby with it being ong about 3" not including its tendrils/pitchers.
Right now its substrate consist of just pur sphagnum and its fine.
I would just like to know what conditions you guys are groing you northiana in. Mine is in typical lowland conditions, but is receiving constant high humidity.... roughly 80-85%
So in what conditions are your guys N northianas in?