Botanical garden

A botanical garden is a garden dedicated to botany, the scientific study of plants. They put plants on display, and so play approximately the same role with regard to plants that zoos play to animals and museums play to art works. They usually combine open air sections and greenhouses, such that a variety of plant species can be displayed and studied under conditions near their optimum for temperature, sunlight, humidity and nutrients. Botanical gardens are used for public recreation, as many public parks or museums are, as well as teaching and research. They may be run by non-profit organizations, universities, and cities and other government entities.