Truly an urban retreat, the Washington Park Arboretum is a beautiful, 230-acre oasis tucked away in Seattle’s Montlake neighborhood. Since 1934, scientists and volunteers have collected data on over 11,000 plant species, which have recently been digitized. This plant database, as well as an Arboretum map highlighting trails and landmarks, is formatted for use on computers, and difficult for visitors to access while at the park. We have designed a mobile application to put this information in the hands of visitors, enriching their overall park experience. Application features include customizable trail loops, information on gardens, park maps and a GPS-enabled plant lookup capability that easily locates plants around app users. Our project has involved a research phase, app sketching, wireframing, usability tests and an interactive prototype built in Axure. Stop by to see the final design and learn all about the application features!