In the current wave of “houseplant mania”, it’s important to remember that houseplants provide numerous benefits in addition to adding amenity to the indoor landscape. Scott Evans, Horticulture Program Coordinator for Nebraska Extension in Douglas-Sarpy Counties reports that water vapor given off via transpiration is a big plus for the indoors, as well as their capacity to absorb potentially harmful gasses such as formaldehyde, ammonia, bioeffluents and volatile organic compounds.