The first thing you need to do for proper Boston fern care is to make sure that it’s in the right kind of environment. Boston ferns need a cool place with high humidity and indirect light. When you care for Boston fern plants indoors, it’s a good idea to provide additional humidity for them, especially in the winter. Most homes are rather dry, even more, when heaters are running. For extra humidity care for Boston fern, try setting your fern’s pot on a tray of pebbles filled with water. You can also try lightly misting your fern once or twice a week to help it get the humidity it needs.