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.
Ferns are part of an ancient group of plants, including mosses and liverworts, that dates back about 300 million years -- before the dinosaurs! As you may guess from a plant that old, they're easy to grow and there's a fern suitable for almost any location. Hardiness varies by species. How to Grow Fern Plants in Your Garden Plant ferns in part to full shade and rich, well-drained soil. In all climates, they need protection from afternoon sun to prevent drying and leaf scorch.