Nephrolepis exaltata, commonly known as the Boston fern, is a lush, evergreen fern that’s popular both as an indoor houseplant and in shaded outdoor gardens in warmer climates. This plant thrives in humid environments and prefers bright, indirect sunlight, making it well-suited for indoor living. It requires well-draining soil and consistent moisture without becoming waterlogged, they do not tolerate dry air or soil. Boston ferns are known for their air-purifying abilities, removing common household toxins from the air. They are non-toxic to humans and animals, making them a safe choice for pet owners.. Mature Size: 2-3′ x 2-3′ after 3 years. Shade, Morning Sun Afternoon Shade.