I like big plants too! I don't have a LARGE nepenthes yet, but I do have one nep that is getting FAR too large for my 10 gallon tank.
The largest pitcher is four inches tall. This picture doesn't do it justice but here you go, my largest Nep at this moment. We all know that Nepenthes can quickly overtake your life!
Please ignore the perlite and Soda bottle pot. I received several Neps at one tme and quickly potted these up. At the time, I was falsely told to layer the bottom of pots with an inch or so of perlite to provide drainage. I now know that the idea of a seperate bottom layer of perlite actually HINDERS drainage, I would've transplanted the Nepenthes, only the last two months it has grown 6 pitchers. All pitchers were the plants first! Thus, it was tough to want to disturb anything. Sure, I will be replanting it soon as the plant outgrows the tank it's in. And that will be in only a month or less!
Just make sure no one sees the perlite layer and gets any ideas. DON"T DO IT! It doesn't help drainage AT all!
Please ignore the perlite and Soda bottle pot. I received several Neps at one tme and quickly potted these up. At the time, I was falsely told to layer the bottom of pots with an inch or so of perlite to provide drainage. I now know that the idea of a seperate bottom layer of perlite actually HINDERS drainage, I would've transplanted the Nepenthes, only the last two months it has grown 6 pitchers. All pitchers were the plants first! Thus, it was tough to want to disturb anything. Sure, I will be replanting it soon as the plant outgrows the tank it's in. And that will be in only a month or less!