The foliage has been treated to ensure the colours remain strong and bright for longer. This will stave off the onset of blueing (caused by UV light from the sun) and allows you to enjoy your planter for longer than the real thing.
Artificial plants are perfect for difficult spaces and can be placed in areas of little sunlight, without having to worry about growing conditions. Without the need for heavy soil, the planters are remarkably light, which makes moving them that little bit easier. There's no need to prune into shape, water or worry about protecting your topiary from frost - you can simply enjoy the beauty without any of the hassle.