TyFone, I noticed you're from Sweden. I believe you can grow many of the highlanders. There is a large group of hoys growers from the Swedish Hoya Society there and I used to be a foremost hoya enthusiast, but have given up the raising of hoyas for nepenthes now. I have learned that many hoyas also inhabit similar habitats and elevations that nepenthes grow in, so my thinking is that if I could grow hoyas (and very well I might add) I should be able to grow nepenthes.
I have been told by almost every scholar, plant group, orchid specialist and nursery that its near impossible to grow nepenthes in Hawaii. I even talked to a guy who said that he had been growing them for about three years and finally gave up because nothing could grow well here.
I started with the lowland species and they did ok. I ventured into a highlander (N. ventricosa) it grew like a weed. I then tried N. alata highland and it too grew like a weed. then I bought a random assortment of things I always wanted to grow and wished for the best. I figured what did I have to lose? I have spent more money on tropical fish and even orchid plants that supposed to do well here and died any way, so here goes!
I bought various highland veitchii's, lowii hybrids, maxima's, spectabilis and a few other things. They are all alive today and many have even flowered.
I recently (as of late last year) purchased some plants that even I thought were questionable to even survive here (like N. lowii, highland truncata, hamata, macrophylla, burbidgeae, boschiana, glandulifera, even rajah, etc.) and they are all doing rather well. I did notice that purchasing larger more established plants gave me better results than purchasing small tiny microchip size plants!
I will post pictures soon. All this digital, page posting, etc., is still very new to me and when I get the bugs out, you will regret that I ever learned how to post pics.
The only difficult plant that I have found is N. macrophylla and aristolochioides. It grows at a very slow rate for me. I believe if I could start with a larger size more established plant, it would take off for me too!
I bought several N. faizaliana because my N. fusca did so well (to me it looked like a fusca, so it must grow like one too!) and so far it has been growing quite well.
At the rate that it is growing I have decided to post this and see how large this plant will get. Not sure when it will start to vine, but as a rosette it looks great so far!
Michael