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1927 Map of the Arboretum

Data Resources

Hunnewell Visitor Center fall landscape: three flowered maple (foreground) and Japanese stewartia (background)
A colorful fall landscape

The Arnold Arboretum manages a raft of data associated with its plant collections. In keeping with our mission, these data and other resources are available for discovery:

Data Downloads

Arboretum GitHub

Arboretum GIS is available through REST services (more info »)

Arboretum Weather data (more »)

Historical weather data [Excel file]

Arboretum-associated botanists’ birthdays [zip file]

Metasequoia glyptostroboides distribution data [Excel file]

TreeVersity data analysis is available here. Raw TreeVersity classification data can be downloaded here.


Arboretum Explorer (interactive map)

Collections Management

Living Collections Policy

Plant Search (includes specimens of accessioned plants housed in the Herbarium of Cultivated Plants)

Plant Image Search

Horticultural Library Collections (e.g., books, journals, publications, archival and manuscript collections, visual resources, and correspondence)

Expeditions Unveiled

Arboretum Weather

Annual Reports

GIS at the Arboretum

Herbarium of Cultivated Plants

Visualization Projects

metaLAB@acaballeromcguirefas-harvard-eduHarvard – Feral Trees

NuVu – Arbonauts

Disclaimer, Permissions, and Copyright

Information is provided on an “as is” basis without warranty of any kind, expressed or implied, including but not limited to warranties of merchantability or fitness for a particular purpose, and assumes no responsibility for anyone’s use of the information. By providing this information on an “as is” basis, the Arnold Arboretum of Harvard University does not guarantee the accuracy, adequacy, completeness, or usefulness of any information presented, nor warrants the completeness, timeliness, or positional, thematic, and attribute accuracy of the data it contains. Users of data indemnify the Arnold Arboretum of Harvard University from any liabilities stemming from use of data.

We ask that any derived works give the Arnold Arboretum proper credit and notification.

Use of collections held by the Horticultural Library are carefully regulated. Please refer to these downloadable forms for permissions, licensing, and imaging services.

Access to our research facilities and the living collections are guided by these policies and permissions.

All data are protected by copyright 2020 The President and Fellows of Harvard College.