The Cambridge University Botanic Garden is a botanical garden located in Cambridge, England. It lies between Trumpington Road to the west and Hills Road to the east, close to Cambridge railway station. The garden covers an area of 16 hectares (40 acres).The site is almost entirely on level ground and in addition to its scientific value, the garden is highly rated by gardening enthusiasts. It holds a plant collection of over 8000 plant species from all over the world to facilitate teaching and research. The garden was created for the University of Cambridge in 1831 by Professor John Stevens Henslow (Charles Darwin's mentor) and was opened to the public in 1846.