If you can grow burbidgeae you should be able to grow edwardsiana.
I've noticed that the small nepenthes in my terrarium catch a lot of springtails. The springtails themselves feed on decaying plant matter so they pose no threat, but they do make good snacks for hungry little plants. I've never bothered to cut off the lid to feed them.
Mine (still very small) grows in a mixture of sphagnum, perlite and seramis and is doing great so far.
edit: I do spray it occasionally with diluted orchid fertilizer