Question
I need your help in which types of Nepenthes would be most suitable for my region.  I live in San Jose, which is zone 9.  I have a terrarium, so that means lowland plants could possibly be grown although it will take some work heating them when temperatures drop.  Will a heat rock work (like those used for reptiles)?

Answer
Hi Taylor,

I really don't have much experience with terrariums.  I'm actually a strong advocate of growing plants that are best suited for a person's region and climate.  Even in my personal collection, I don't have N. bicalcarata or N. ampullaria simply because it's too cold in Oregon.

With that said, sometimes someone just has to have these heat-loving plants.  There are two ways to set up a heated terrarium.  The first is to use a heat pad under the terrarium.  You'll need to use a thermometer inside the terrarium to find the appropriate setting.  This method is preferable to a heat rock because of the moisture content in the terrarium.  The heat rock is best suited for a dry environment.

The second method is to keep about 3 inches of water in the bottom of a glass aquarium.  Place a submersible aquarium water heater in the water and set it to the appropriate temperature.  You'll then need to find a way to elevate the plants above the water.  The steady water temperature will keep the terrarium at an even temperature and constant humidity.

Good growing!
Jacob Farin