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.
Asparagus Fern. a.k.a., Emerald Fern - Foxtail Fern - Plumosa Fern. Asparagus densiflorus 'Sprengeri'. The Asparagus Fern, really a member of the Lily family, has three popular varieties, all easy for any Indoor Gardener to grow in pots or in hanging baskets. The most common - Asparagus Sprengeri - is covered on this page.