A garden is a planned space, usually outdoors, set aside for the display, cultivation, and enjoyment of plants and other forms of nature. The garden can incorporate both natural and man-made materials. The most common form is known as a residential garden. Western gardens are almost universally based around plants. Zoos, which display wild animals in simulated natural habitats, were formerly called zoological gardens. The etymology of the word refers to enclosure: it is from Middle English gardin, from Anglo-French gardin, jardin, of Germanic origin; akin to Old High German gart, an enclosure. The words yard, court, and Latin hortus (meaning "garden," hence horticulture and orchard), are cognates-- all referring to an enclosed space. The term "garden" in British English refers to an enclosed area of land, usually adjoining a building. This would be referred to as a yard in American English. Some traditional types of eastern gardens, such as Zen gardens, use plants such as parsley. Xeriscape gardens use local native plants that do not require irrigation or extensive use of other resources while still providing the benefits of a garden environment.