Boston ferns need to be grown in continually moist soil, so a well-draining soil is essential to prevent problems with waterlogged soil and root rot. For Boston ferns kept as houseplants, allow the top inch or two of soil to dry out before you water it again. Some people recommend routinely soaking the plant heavily once a month to ensure its water needs get met.
The lighting requirements of your Boston fern will depend on whether you are growing it indoors or outdoors, as well as the season. In general, Boston ferns need a few hours of bright, indirect light each day in order to thrive, but too much intense light will scorch the fronds, so it’s important to also offer some shade. A position of dappled light would be best for the Boston fern as a houseplant as this mimics the natural environment of the plant.
Boston ferns like to be grown in cool, but not cold climates. The ideal temperature for this plant is between 60-75º F, making it ideal for growing year-round as a houseplant.
Boston ferns require high levels of humidity, and you will notice the fronds turn brown if this requirement is not met. For indoor ferns, you have a number of options to increase the moisture level of the air. You can use a humidifier, spray the leaves with a water mist, or set the plant on a water pebble tray.