[header] How to care for nepenthes (tropical pitcher plants ) [title] Determine the species of your plants. [step] Nepenthes are divided into two species groups-highland and lowland. The two species are divided based on the altitude of their natural growth habitat, so they need slightly different care to thrive. 
There is also a less common intermediate group that can grow in both highland and lowland conditions. The species mostly dictates the temperature and amount of light the plants need.