Would adding live spagnum moss to the pot help with humidity? I don't have a greenhouse.
Yes - but..... if humidity is a problem already (I assume thats what your goal is: to increase humidity in a dry-air indoor space) then you are not going to keep Sphagnum alive for long without misting it every five minutes. Sphagnum is notoriously difficult to maintain inside the dry air environment of a living space. Even in my full sized greenhouse with air and humidity controlled within very precise parameters, I have to wet the live Sphagnum at least once a day to keep it from drying excessively. Its more work by far to maintain living Sphagnum (Unless you build non-draining, saturated bog containers for it) than it is to maintain the Nepenthes in my greenhouse. FAR more work!
I wouldn't really worry about humidity with ventrata. It will tolerate extremely dry air.
What about pure alatas though, which is what my plant is marked as. It does, however look a lot like a ventrata.
Yes - but..... if humidity is a problem already (I assume thats what your goal is: to increase humidity in a dry-air indoor space) then you are not going to keep Sphagnum alive for long without misting it every five minutes. Sphagnum is notoriously difficult to maintain inside the dry air environment of a living space. Even in my full sized greenhouse with air and humidity controlled within very precise parameters, I have to wet the live Sphagnum at least once a day to keep it from drying excessively. Its more work by far to maintain living Sphagnum (Unless you build non-draining, saturated bog containers for it) than it is to maintain the Nepenthes in my greenhouse. FAR more work!