Boerner Botanical Gardens
Boerner Botanical Gardens are botanical gardens located on the grounds of Whitnall Park in the village of Hales Corners, Milwaukee County, Wisconsin. The gardens are named for Alfred Boerner, who designed the original five formal gardens. The Annual, Perennial, Rock, Rose and Peony Gardens were constructed in the 1930s. Later additions included trial, herb, lily and shrub rose gardens, as well as the Bog Walk.
Part of the Milwaukee County Park System, the gardens are maintained by professional horticulturalists. Many species of plant life are cultivated and displayed. The gardens include test and display gardens for All-America Selections, and is an American Hosta Society Display Garden.
Boerner Botanical Gardens is open from late April to early November, and closes for the winter.
Within the gardens and adjacent to them in Whitnall Park, and along the Root River Parkway is the arboretum, which showcases arranged groves of trees and shrubs. Nearby are the Wehr Nature Center and the historic Trimborn Farm estate, which are also maintained by the county park system.