We recently started growing N. rajah outdoors in an abandoned potato field at 5,000' altitude. Just planted them out in rows in the ground with some shadecloth over the top of them until they settle in. I haven't seen them for weeks but people who have just been there say they are looking great. Will take a photo and post when I'm up there next week.
Other species we have planted out along a bank which get full sun for 50% of the day have simply gone berserk. Flowers all over the place and big, big pitchers. I guess the natural food they catch help, there's lot of grasshoppers around. The experiment is only about 2 months old but it's amazing that the plants didn't even slow down whilst they were settling in.