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.
Lady Fern is easy to grow and thrive in moist, well-drained soil. Plants can tolerate dry soil conditions better than most other ferns. Lady ferns grow best in shaded areas of the garden but can handle sun if soil is constantly moist. They grow to be 1 to 3 feet high and have a plant spread of 1 to 2-1/2 feet.
Tree ferns are true ferns. Like other ferns, they never flower or produce seeds. They reproduce from spores that grow on the undersides of the fronds or from offsets. A tree fernâs unusual trunk consists of a thin stem surrounded by thick, fibrous roots.The fronds on many tree ferns remain green throughout the year.In a few species, they turn brown and hang around the top of the trunk, much like palm tree leaves.ike other ferns, they never flower or produce seeds. They reproduce from spores that grow on the undersides of the fronds or from offsets. A tree fernâs unusual trunk consists of a thin stem surrounded by thick, fibrous roots. The fronds on many tree ferns remain green throughout the year.