The Hayes Arboretum Master Plan establishes a bold vision for the future of Hayes Arboretum, guiding the growth and stewardship of one of east-central Indiana’s mostsignificant ecological and cultural landscapes. Set within the Whitewater Valley watershed, the 330-acre arboretum features rare old-growth forest, perennial streams, rolling topography, and Native American mounds that togethe rcreate a distinctive setting for conservation, education, and community engagement.


A key finding of the planning process was the community’s need for a larger gathering and event space capable of supporting educational programs, civic activities, and economic development initiatives. In response, the master plan prioritizes a new education and assembly space in its first phase, expanding the arboretum’s role as both a natural retreat and a year-round community resource. As the largest privately owned arboretum in the region, Hayes Arboretum serves as an inclusive destination with free admission and strong partnerships with schools,nonprofit organizations, and local institutions.




Beyond guiding physical improvements, the master plan has become a powerful tool for fundraising, membership growth, and public outreach, helping build momentum for future investment. By aligning ecological stewardship, cultural heritage, and community connection, the plan demonstrates how landscape architecture can transform a historic landscape into a resilient regional asset with lasting public value.


