the botanical garden. According to his plan, the garden had two separate areas: gardens and a park-like arboretum. He also planned the greenhouse buildings, of which the first was completed in 1832. Sahlberg served as the first head and organizer of the botanical garden, whose ambitious goal was to create collections of all of the plants in Finland and as many of the non-Finnish plants that thrived in Finland. The wooden, single-storey main building designed by Engel was built in the middle of the garden by 1831. In the 1850s, it was expanded according to plans by . The wood building was moved out of the way of the new main building. In its new location, it became the gardeners’ living quarters, which is the purpose it still serves today. Wiik planned an Empire style bakehouse for the garden and a fence to protect the garden from the cows grazing in pasture nearby. Engel also planned a joint Gothic stable and cow barn, which has already been demolished. The botanical garden's current buildings are the handiwork of Architect Gustaf Nyström, as the original greenhouses designed by Faldermann were replaced at the end of the 19th century with new greenhouses designed by Nyström. Unlike Faldermann's greenhouses, Nyström's were made of wrought iron. In 1889, the large, tropical Palm House with its glass roof was finished and in 1896 the rest of the greenhouses. In 1903, construction on the institute building housing the Botanical Department and the Botanical Museum that Nyström had designed to replace the original main building now serving as the gardeners’ living quarters and the professor's living quarters was finished. The Botanical Museum is still housed in the same building. The gardeners’ building was relocated to the western border of the botanical garden. Furthermore, wooden buildings from the 19th century were moved to the northern border of the garden from elsewhere in Helsinki during the 1990s. During the Continuation War, the garden was hit by three bombs and the greenhouses were damaged. As a result, all of the more than 1,500 taxa in the greenhouses, with the exception of a single cypress and the seeds of a water-lily, died due to freezing temperatures. The seeds survived at the bottom of the water-lily pool and the current water-lily in the pool is the descendant of that water-lily. In the 1950s, the greenhouses were restored and modernized and from 1996 to