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Tree Phenology at the Charlestown Navy Yard

This article contains resources and references that can help you explore the trees of the Charlestown Navy Yard and contribute to the study of phenology in our park!

Phenology is the study of seasonal changes in the natural world. Seasons can be observed in many ways, such as the first frost of autumn, the emergence of insects in spring, and the arrival of summer thunderstorms. At the Charlestown Navy Yard, we study phenology by observing changes in our trees throughout the year.

From the emergence of new leaves and spring blossoms to the development of fruits and the vibrant colors of autumn, plants provide valuable clues about the changing environment. These observations help scientists better understand local ecosystems, urban heat effects, and the impacts of climate change.

Explore the resources below to learn more about plant phenology and discover how you can become a citizen scientist with the National Parks of Boston. We hope to see you out in the park!

Tree Phenology Guides

American Basswood
dark green heart-shaped leaves with buds at the end
Learn about the American Basswood.
American Elm
bright green serrated leaves
Learn about the American Elm.
Horse Chestnut
green paddle-shaped leaves growing out of a central point.
Learn about the Horse Chestnut.
Pin Oak
pointed, lobed green leaves sprouting out of a branch
Learn about the Pin Oak.
Black Walnut
branches with oblong ribbed leaves that come to a point.
Learn about the Black Walnut.
Red Maple
tri-pointed green leaves hanging from a branch.
Learn about the Red Maple.

Resources

To learn more about phenology, visit the USA National Phenology Network.

Learn more about the Charlestown Navy Yard.

Tags: boston national historical park, boston harbor islands national recreation area, tree phenology, plant monitoring, charlestown navy yard

Boston National Historical Park, Boston Harbor Islands National Recreation Area

Last updated: September 23, 2026