How Morris Arboretum & Gardens Mapped 11,000 Plants for Visitors and Staff

July 27, 2026

Alicia Glassman

Set on 92 acres in Philadelphia's Chestnut Hill neighborhood, the Morris Arboretum & Gardens of the University of Pennsylvania is home to more than 11,000 accessioned plants representing over 2,500 taxa. To properly document and display this collection, Morris Arboretum & Gardens partnered with Blue Raster to create Garden Explorer, a web- and mobile-friendly application that puts the arboretum's living collection at visitors' fingertips. 

View from the upper terrace at Morris Arboretum & Gardens looking down stone balustrade steps toward a sundial fountain, open lawn, and tree-lined garden path in Philadelphia's Chestnut Hill neighborhood

After receiving an Institute of Museum and Library Services (IMLS) grant in 2022, Morris staff began collecting high-accuracy GPS locations for each of its accessioned plants using ArcGIS Field Maps. With plant locations captured, Blue Raster worked with the Morris team to connect its plant collections management system, BG-BASEwith the newly collected GPS points, and drone-captured basemap imagery, bringing it all together in Garden Explorer, their first interactive, public-facing map of the collection. 

Navigate the Garden Explorer App: 

Garden Exploration made easy with GIS

Built with ArcGIS Experience BuilderGarden Explorer lets visitors search the collection by plant name, accession number, or garden feature, then pulls up photos and details on their phone. With location services enabled, users can see exactly where they are on the map relative to nearby plants, amenities, and points of interest. The same map is also available from a desktop browser, so visitors can explore the collection or plan a route before they ever set foot on the grounds.

Garden Explorer application showing a drone-captured aerial basemap of Morris Arboretum with plant labels across the grounds and a Morris Pond feature popup displaying photos and location details
Garden Explorer application displaying the Gayle E. Maloney Memorial Garden popup with photos and description, alongside the About Garden Explorer panel highlighting the IMLS grant funding
Garden Explorer application search panel showing hydrangea search results by accession number, with matching plant locations highlighted on the drone aerial basemap of Morris Arboretum

Our Rich History with Public Gardens & Arboreta

Garden Explorer joins a series of public gardens Blue Raster has helped connect visitors to their collections through GIS-powered mapping. As collections grow and record-keeping moves further into the field, tools like these are becoming essential, not just for public engagement, but for the day-to-day work of plant records and curatorial staff who rely on accurate, up-to-date spatial data. 

Bring Your Living Collection to Life

Blue Raster has spent over a decade helping public gardens, arboreta, and cemeteries modernize their plant records and build mapping tools that work for both staff and visitors. If your institution is ready to bring your collection to life on the map, contact us today.

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