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Participate in our Adopt-a-Tree program and help us grow a vibrant tree canopy to keep our town cool and combat global warming! Select a street tree close to your home, school, or workplace and commit to watering it weekly through the growing season (until October). 


Caring for a new tree during its establishment period (2-3 years) significantly increases the likelihood of its survival. One of the biggest challenges the town faces in increasing town tree planting is effective tree watering. Volunteering to adopt a tree is a wonderful way to serve the community and help our environment.

Tree Adoption Expectations:

  • Watering 1-2 times/week from May-Nov. Water can be brought to the tree using various containers (milk jugs, watering cans) or by coordinating with a nearby resident to use a hose.

  • Tying a yellow ribbon or bright-colored fabric around your tree's gator bag handle to indicate the tree is adopted

  • Taking a photo of your adopted tree with your smartphone, at the first watering visit and again in October (preferably before leaves come off)

  • If you plan to be away for a portion of the summer, please find someone to care for your tree during that time

  • Check out watering tips in our tree care section.

The Adopt-a-Tree Program commences every year around May 1st.  The GIS Tree Map that supports the program is available each year from May through November.  Returning Tree Adopters need to sign up each year in the Spring to continue their much-appreciated efforts.

JOIN Friends of Arlington Trees, a GOOGLE GROUP run by The Arlington Tree Committee

Send request: Arlington Tree Committee

Google Group

Become a member of the Arlington Tree Committee  Learn more

heritage trees


Arlington is home to a number of trees large enough to be designated as heritage trees. A heritage tree, as defined by the Massachusetts Department of Conservation and Recreation (DCR), is a tree that:

  • Measures more than 32 inches in diameter at breast height (DBH) or 100.45 inches in circumference

  • Has a documented cultural and/or historical significance.


The Arlington Tree Committee hopes you can help us locate the town’s biggest trees so that we can celebrate them, seek DCR funding for care of those trees on public lands, and even try to match them to trees in town photo archives.


To measure a tree’s circumference, you’ll need a long piece of string and a tape measure. An assistant will be helpful for very large trees. Run the string around the tree at 4.5 feet from the ground to measure the circumference then remove the string from the tree and use tape measure. If the tree’s circumference measures at least 100.45 inches around, email its location and measurement to If possible, include an image of the tree.


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