Visitors to the Arboretum will discover a whole new way to interact with the Arnold Arboretum and its renowned collection of plants—Expeditions, a mobile application, debuts just in time for summer exploration.

In 2014, the Arboretum debuted Other Order, a mobile app “sound walk.” The project—a collaboration between Arboretum Senior Research Scientist Emeritus Peter Del Tredici and sound artist Teri Rueb—featured stories and sounds from Bussey Brook Meadow, a parcel of Arboretum land left largely unmaintained for purposes of long-term urban ecological study. Other Order was the Arboretum’s first foray into mobile app interpretation, harnessing new technologies to reach audiences in novel ways.

In the intervening years, mobile technology has become even more widespread and the concept for another app emerged. “Utilizing mobile app technology will greatly broaden our outreach capability,” says Kate Stonefoot, Arboretum Manager of Visitor Engagement. “Besides providing casual access to detailed, targeted information, there are profound benefits for individuals with hearing or sight impairments, as well as visitors for whom English is not their first language. With this in mind, and the help of a generous donation, we’ve embarked on the Expeditions project, which will allow us to share the story of the Arboretum and its world-renowned collection of trees in ways that will enhance the visitor experience.”

When I came to the Arboretum as Visitor Engagement Fellow, tasked with managing the development and launch of the Expeditions app, several things immediately became clear. First, it’s hard to narrow down 16,000 plants to a small selection! And second, the Arboretum’s staff, with their wide-ranging roles, are an incredible reserve of stories. “Behind each of our roughly 16,000 accessions lies a unique story—a story of journeys and collecting around the world, of amazing natural history, horticulture, and the aesthetic experience of observing our plants throughout the seasons and years,” said Director and Arnold Professor of Organismic and Evolutionary Biology William (Ned) Friedman. “Expeditions was designed to enrich the experience of interacting with our photosynthetic brethren.”

With the help of an editorial committee—composed of Stonefoot, Keeper of the Living Collections Michael Dosmann, Head of the Library and Archives Lisa Pearson, Editor of Arnoldia Jonathan Damery, and Associate Project Manager Danny Schissler—I began selecting which plants and areas would be featured in the app. Drawing on the Arboretum’s long tradition of docent-led tours, we created a structure featuring two linear tours (an introductory tour and a tour of the Explorers Garden, each with a series of highlighted plants) along with other independent plants and sites throughout the landscape.

Expeditions the app of the Arnold Arboretum
Expeditions is available for download at the Apple and Google Play app stores, and may also be viewed on an internet browser.

Initial proposals for the app included plans for writing and recording scripted, museum-style audio segments for each stop on the two linear tours. In addition to those segments, I proposed that we interview staff members, recording stories about their work at the Arboretum in their own voices. As a result, more than fifty interview segments share these personal reflections throughout Expeditions. Gardener Brendan Keegan addresses the ecological benefits of the Arboretum’s meadow areas, which provide habitat for pollinators and wildlife. Nature Education Specialist Ana Maria Caballero describes teaching schoolchildren about the components of pond habitats. And Del Tredici tells stories of collecting plant material around the world, from a rain-soaked mountainside in rural China to the intersection of Interstate 95 and the Massachusetts Turnpike, eight miles from the Arboretum. The Arboretum’s diversity of voices allowed us to leverage specialized expertise among our staff and helped us highlight the concepts and values we wanted to illustrate about the Arboretum—history, conservation, research—and of course, plant exploration.

In structuring the app’s content, we created something flexible. If you want to follow a linear tour from the Hunnewell Building to the ponds, you can opt for the Introductory Tour, with eleven “stops” (featured plants or areas) along Meadow Road. If you want to chart your own course, you can explore and visit up to thirty-five independent stops featured throughout the landscape. You also have a range of options to select from at each stop—you can view images, listen to audio clips, and “dig deeper” by accessing additional content pages. The app’s content will be translated into Spanish and Simplified Chinese. Users will have the option to download the app for free or access the content on an internet browser.

We’re excited to share Expeditions this summer with Arboretum visitors. The app has something for everyone, from the first-time visitor to the most seasoned volunteer. Sharing stories from across the Arboretum’s departments—from horticulture to curation to research to education—illustrates that anyone can develop meaningful relationships with trees. By demonstrating the many complex ways we think about and learn from plants, we hope to encourage visitors to build connections not only to the trees they encounter in our landscape, but to their counterparts everywhere.

From “free” to “friend”…

Established in 1911 as the Bulletin of Popular Information, Arnoldia has long been a definitive forum for conversations about temperate woody plants and their landscapes. In 2022, we rolled out a new vision for the magazine as a vigorous forum for tales of plant exploration, behind-the-scenes glimpses of botanical research, and deep dives into the history of gardens, landscapes, and science. The new Arnoldia includes poetry, visual art, and literary essays, following the human imagination wherever it entangles with trees.

It takes resources to gather and nurture these new voices, and we depend on the support of our member-subscribers to make it possible. But membership means more: by becoming a member of the Arnold Arboretum, you help to keep our collection vibrant and our research and educational mission active. Through the pages of Arnoldia, you can take part in the life of this free-to-all landscape whether you live next door or an ocean away.

For more tree-entangled art, science, and writing, subscribe to Arnoldia by becoming a member of the Arnold Arboretum.