Nichols Arboretum | Ann Arbor

Nichols Arboretum, commonly known as “The Arb,” is a treasured natural and botanical space owned and managed by the University of Michigan, located on a 123-acre site just east of the university’s central campus in Ann Arbor, Michigan. Founded in 1907, it was originally conceived as a place to cultivate and study trees and shrubs native to Michigan and the broader Great Lakes region. Over the decades, Nichols Arboretum has evolved into a diverse, multi-functional landscape combining scientific research, environmental conservation, recreation, education, and cultural engagement.

Landscape and Natural Features

Nichols Arboretum is characterized by a rich mosaic of habitats and natural landscapes that offer visitors a wide array of ecological experiences:

Woodlands: The Arb contains extensive oak-hickory forests dominated by species such as red oak, white oak, black oak, pignut hickory, and white ash. These mature woodlands represent second- and third-growth forest stands that provide critical habitat for many native animals, including birds, small mammals, and insects. The forest floor is often carpeted with native wildflowers and ferns, which change seasonally.

Wetlands and Wet Meadows: Several wetland areas occur within the Arb, including hardwood swamps and wet meadows. These environments support species adapted to moist soils, such as silver maple, red maple, American elm, and black ash. These wetlands also contribute to local biodiversity by supporting amphibians, dragonflies, and other wetland-dependent species.

Prairie and Open Fields: Portions of the Arb have been restored to native prairie, where grasses and wildflowers such as big bluestem, Indian grass, and goldenrod thrive. These open habitats are essential for pollinators like bees and butterflies and add to the Arboretum’s habitat diversity.

Hills, Ravines, and Streams: The terrain includes gently rolling hills and ravines, with Schoolgirls’ Glen being one of the most notable ravine areas. This scenic glen features a small stream and diverse vegetation and has historical and cultural significance, as it inspired the establishment of the Arboretum.

Signature Gardens and Collections

W.E. Upjohn Peony Garden: One of the Arboretum’s most famous features, this garden is home to the largest and most significant collection of historic herbaceous peonies in North America. It contains over 300 varieties, many dating back before 1950. The garden blooms in late spring to early summer, drawing visitors and researchers alike. The peonies are prized for their rich colors, forms, and fragrance, and the collection is used for botanical study and conservation.

Centennial Shrub Collection: This diverse collection contains a variety of ornamental and native shrubs and small trees, including lilacs, hawthorns, viburnums, dogwoods, and crabapples. Many specimens date back to the Arboretum’s early years and represent important horticultural varieties.

Heathdale: A unique garden area that mimics the acid, well-drained soils of the Appalachian region, showcasing rhododendrons, azaleas, mountain laurel, and other ericaceous plants. This collection highlights species less common in Michigan’s native flora but valued for their horticultural beauty and ecological interest.

Gateway Garden: Positioned near the James D. Reader Jr. Urban Environmental Education Center, the Gateway Garden serves as a welcoming space for visitors. It includes informative signage and displays that introduce people to the Arboretum’s plants and natural history.

Trails and Visitor Experience

Nichols Arboretum offers approximately 3.5 miles of well-maintained trails, accessible to visitors year-round from sunrise to sunset. These trails wind through the various habitats, providing opportunities for quiet nature walks, birdwatching, photography, and seasonal activities like wildflower viewing and fall foliage appreciation. The trails include:

Main Valley Trail: A scenic route through the central valley, offering views of mature woodlands and the peony garden.

Schoolgirls’ Glen Trail: A more secluded path descending into a ravine, offering a natural and historical perspective of the Arb.

Upland and Prairie Trails: These provide insight into the diversity of upland forests and prairie restoration efforts.

Educational and Cultural Significance

Nichols Arboretum functions not only as a botanical and ecological preserve but also as an educational and cultural resource for the University of Michigan and the broader community:

Environmental Education: The Arboretum supports numerous university courses, workshops, and research projects related to botany, ecology, environmental science, and landscape architecture. It is an outdoor classroom for both undergraduate and graduate students.

Public Programs: Seasonal programs such as guided nature walks, plant identification workshops, and family-friendly events foster community engagement and environmental awareness.

Shakespeare in the Arb: This acclaimed annual summer event presents Shakespearean plays performed outdoors within the natural setting of the Arboretum. The performances use multiple locations within the Arb, creating an immersive theatrical experience that blends culture with nature.

Research and Conservation: The Arboretum plays a role in regional conservation efforts by preserving native plant species and habitats. It provides a site for studying native plants’ growth, adaptation, and response to environmental changes, aiding both scientific understanding and conservation practices.

Facilities and Accessibility

James D. Reader Jr. Urban Environmental Education Center: This center functions as the gateway to Nichols Arboretum and Matthaei Botanical Gardens. It offers educational exhibits, restrooms, meeting spaces, and administrative offices. The center supports outreach and environmental education programs.

Accessibility: Trails and facilities are designed to accommodate visitors of varying mobility levels. Some paths are paved or otherwise accessible, and informational materials are provided to enhance visitor experience.

Hours and Admission: Nichols Arboretum is open daily from sunrise to sunset with free admission. Parking is limited but available nearby, including metered street parking and university lots with specific regulations.

Summary

Nichols Arboretum stands as a remarkable urban natural area combining ecological richness, horticultural treasures, cultural activities, and educational resources. Its diverse habitats, signature gardens like the peony collection, and serene trails make it a beloved destination for nature lovers, researchers, students, and the public. The Arb balances preservation with public enjoyment, offering an inviting green refuge in the heart of Ann Arbor that nurtures both the environment and community connection.