The sections of the light spectrum which the âredâ and âgreenâ cones perceive overlap and this is why red and green colour vision deficiencies are often known as red/green colour blindness and why people with red and green deficiencies see the world in a similar way.
Boston Fern The most common indoor fern, Boston ferns are long-lived plants that can reach more than 5 feet tall and wide at maturity (though indoors they rarely reach that size). Fern breeders have released a large number of varieties -- from selections with golden fronds to fantastically frilled fronds.
Types of Ferns to Grow Indoors. Ferns are a class of plants that include about 12,000 species in 150 different families. In their native habitats, most types of ferns grow on the moist, nutrient-rich forest floor where they receive little light. Some are epiphytes, nestled on the branches of tall trees. Just a dozen or so make their way into our homes.