The UW Arboretum was founded on April 26, 1932, when the University Board of Regents accepted the deeds to 6 parcels, 246 acres of land on the southwestern end of Madison's Lake Wingra, creating the "University of Wisconsin Forest Preserve Arboretum and Wildlife Refuge". The acreage at the time was mostly farmland fields and pastures. In 1933, G. William Longenecker was named Arboretum Executive Director. Longenecker Horticultural Gardens would be named after him. Aldo Leopold was named Research Director and also was the first professor of game management in the U.S. He was also the first chair of the Department of Game Management at the University of Wisconsin. Leopold and other members of the first Arboretum Committee, especially Professor Norman C. Fassett of the Botany Department, proposed a research agenda around re-establishing "original Wisconsin" landscape and plant communities, particularly those that predated European settlement, such as tallgrass prairie and oak savanna. Between 1935 and 1941, crews from the Civilian Conservation Corps provided most of the labor to accomplish this task under the supervision of Ted Sperry, an ecologist and prairieplant root specialist who had studied with Arthur G. Vestal at the University of Illinois. Such work would eventually become known as ecological restoration. Some of the first tall-grass prairie restorations in the United States took place at the Arboretum. In addition to its long-standing commitment to ecological restoration, the Arboretum also features traditional horticultural collections of labeled plants arranged in garden-like displays. Today the Arboretum manages the oldest restored tall grass prairie in the nation along with an extensive collection of restored ecosystems that are referred to as "ecological communities": woodlands, savannas, prairies, wetlands, springs, and the Lake Wingra shoreline.
Prairies and savannas
More than 300 species of native plants that once dominated the landscape of southern Wisconsin have been restored to the arboretum's prairies and savannas.
Curtis Prairie – described as the world's oldest restored prairie; a tallgrass prairie with big bluestem grass and Indian grass.
Greene Prairie – planted by prairie expert Henry Greene during the 1940s and 1950s.
Marion Dunn Prairie – amelioration of a settling pond.
Marsh Connection – transition between Curtis Prairie and wetlands.
Southwest Grady Oak Savanna – southern Wisconsin fire-adapted communities.
Wingra Oak Savanna – open-grown bur oaks, being restored by the replacement of its understory of non-native trees, shrubs, and weeds with grassland species.
Deciduous forests
Gallistel Woods – will eventually be representative of a southern Wisconsin sugar maple forest.
Grady Dry Oak Woods – part of the southern Wisconsin fire communities.
Noe Woods – white oaks and black oaks; the larger oaks are now about 150 years old. Noe woods is named for the Bartlett-Noé family farm, which was sold by Mrs. Jessie Bartlett Noé to the University in 1933 for inclusion in the Arboretum.
Wingra Woods – oak woods underplanted with sugar maple, basswood, and beech; gradually changing to a forest with sugar maple as the dominant species.
Leopold Pines – red and white pines planted between 1933 and 1937, with small numbers of red maple, white birch, and northern shrubs and ground plants.
Lost City Forest – mixed woodlands. Originally was intended to be a housing development in the 1920s, the developer went bankrupt and abandoned the land. There are still some concrete foundations and sidewalks visible in the area.
Teal Pond Wetlands – sedge meadow and pond, with boardwalks.
Wingra Marsh – relatively untouched wetlands.
Horticultural collections
Longenecker Horticultural Gardens – more than 5,000 plants of more than 2,500 taxa; a leading collection of trees, shrubs and vines in Wisconsin. Major displays of lilacs, flowering crabapples, viburnums, conifers, and dozens of other plant groups. More than 100 of Wisconsin's native woody plants are represented in the collections.
Viburnum Garden – more than 80 species and varieties of viburnums, and 110 species and varieties of arborvitae.
Wisconsin Native Plant Garden – approximately 500 native Wisconsin plants, with demonstrations for home landscaping.
Recreational use
In addition to being a research facility, the Arboretum is also a leisure destination for local residents and tourists. It includes 20 miles of hiking trails, 3 miles of biking roads, 10 miles of ski/snowshoe routes. The Arboretum is open to the public daily without charge.