The Sarracenia may be pure purpurea, and should not be referred to as "sweet pitcher." That is a term used only for the rubra complex. All those plants more or less need different conditions; purpurea should be outdoors in full sun with a peat-based soil, the sundew (likely tokaiensis, but hard to tell from the angle of the photo) would prefer full sun and could live with the Sarr for the most part but would die under hard freezes and so should be protected from that, the Nepenthes is probably either ventricosa or "ventrata" (more likely the latter) and will do fine in an open sphagnum mix and partial sun to strong diffused lighting, indoors where humidity will be at least somewhat higher (they're not as picky as some people say, and you should avoid misting them because that causes only local extreme humidity fluctuations and can invite fungus or water burn).