The Boston fern is the most popular of all ferns grown indoors and has been found to be one of the easiest to care for and maintain which offers beauty and health benefits. Nephrolepis exaltata, known as the sword fern or Boston fern, is a species of fern in the family Lomariopsidaceae. The Boston fern is one of the most well-known ferns and admired for its desirable traits as a houseplant. Boston ferns are typically attractive, with long, graceful fronds bedecked with tiny leaves. It is a relatively tough fern, with a higher tolerance for light than other species, and as far as ferns go, they are more tolerant of dry conditions and easy to propagate.