No terrariums. No myths. No nonsense.
Fortunately, the vast majority of Nepenthes are easily grown as houseplants. In fact, some of our most common houseplants originate from similar places that Nepenthes do. Only a small handful of Nepenthes require a carefully-controlled environment, like a grow chamber or ventilated terrarium. But those are expensive to keep and cultivate, so if you are new to growing Nepenthes, start off with one of the many easier species that grow well as a houseplant.
Below are some of the common species and hybrids you might find in cultivation:
Each of those Nepenthes pictured above was grown following the simple guidelines below. While there are certainly specific requirements among some of the varieties, the following guide applies to the vast majority of Nepenthes you might encounter in cultivation.
Where to GrowNepenthes grow spectacularly on sunny windowsills. Always protect your plant from draft, extreme heat, and freezing temperatures. Windowsills that have Southerly, Easterly, or Westerly orientations are adequate, the main concern being ample sunlight. Humidity is a negligible factor, with ambient household humidity being more than adequate for most varieties. You may be able to grow Nepenthes outside if you live in a subtropical climate, like much of Florida or the Gulf Coast. As they are tropical plants, take care never to expose your Nepenthes to freezing temperatures, especially snow or frost. Many can take chills down through the low 40s F (4 deg. C), but this is best avoided.
Provide partial sunlight, several hours of direct sun with bright filtered light during the rest of the day. Avoid full shade. Sun is the key element in getting your plant to grow pitchers. The energy provided by photosynthesis is what grows the traps, and the light from the sun is essential to producing good color.
With proper sunlight, Nepenthes will grow well as a regular houseplant, such as this Nepenthes truncata growing in a west-facing window.
Artificial LightsIf a sunny window is not possible, use strong fluorescent lights (a minimum of 40 watts in actual output). Start with the lights approximately 12 inches above the plant. Monitor your plant and adjust the height of the light source if you are not satisfied with its growth. Use an electrical timer to maintain a photoperiod (consistent daylight hours, 14 hours is sufficient throughout the year).
TemperatureIf you are comfortable in jeans and a t-shirt, your Nepenthes are comfortable naked. Daytime temperatures should be about 75°F. Nighttime temperatures may drop into the 60s but not necessary with most Nepenthes. Some highland species appreciate a drop into the 50s or lower at night, with a rise in temperature back up to the 70s F.
WaterUnlike other carnivorous plants, Nepenthes will tolerate hard water (up to 200 parts per million) with almost no adverse effect. Make sure the water drains through the soil completely, hefting the pot to make sure it's heavy and saturated. Avoid standing water, as this can cause root rot in Nepenthes, and can make them susceptible to pests.
SoilUse a mix of 1 part dried sphagnum moss and 1 part perlite. Avoid using potting soil and compost, as their nutrient and mineral ingredients can kill carnivorous plants.
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