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.
Wood fern (Dryopteris) Plant these delicate, medium-sized ferns in mixed borders to show off their feathery fronds. Autumn ferns (D. erythrosora) are one of the few ferns with seasonal color variation and their fronds change from pale gold and pink in spring to green in summer and rusty copper in fall. The ferns spread by underground stems to form swaths in garden beds.
There is an abundance of ferns for you to choose from. If you have a low wet area, the cinnamon fern, Osmunda cinnamonea; royal fern, Osmunda regalis; different species of Phyllitis and Athyrium might do well in your garden.urseries specializing in perennials may have 20 to 30 different ferns to choose from. Many ferns can be divided and shared from established gardens. If a friend has a shade garden with ferns ask if they will share plants when they are moving plants or thinning out established beds.