The gardens were developed as a WPA (Works Progress Administration) project during the 1930s.
The collection includes over 500 varieties of roses in the dedicated Rose Garden.
The site hosts an annual 'China Lights' lantern festival during the autumn months.
Alfred Boerner, the landscape architect, was specifically hired by the Milwaukee County Park Commission to design the arboretum.
The gardens feature an 'Annual Trial Garden' where new plant varieties are evaluated for their suitability in Midwestern soil and weather conditions.
Boerner Botanical Gardens is a 40-acre public garden located within Whitnall Park, featuring a collection of specialty gardens designed by Alfred Boerner. The landscape is structured into distinct thematic zones including the Rose Garden, Herb Garden, Peony Garden, and Bog Garden. It serves as an outdoor arboretum containing extensive collections of woody plants and deciduous trees. The gardens are built into a series of valleys that utilize natural topography to create varied microclimates. Horticultural displays are updated seasonally to reflect regional flora suitable for Wisconsin's climate. The site includes a historic Education and Visitor Center that hosts botanical exhibitions and community workshops. It is maintained as part of the Milwaukee County Parks system.
The elevated bridge overlooking the sunken Rose Garden provides the best panoramic view of the formal landscaping.
Wear comfortable walking shoes as the terrain involves slopes and varied path surfaces.
Check the official garden website for bloom reports before visiting to time your trip with peak flowering periods.
Bring a camera with a macro lens, as the specialty gardens are curated for close-up botanical photography.
Do not rely on street parking outside the designated lots; the gardens are expansive and require significant walking from the main entry points.
The gardens operate seasonally with limited outdoor access during winter months; specialized events like lantern festivals are date-specific.
Stay on marked paths to protect delicate plantings; picking flowers or foliage is strictly prohibited.
