Watertown Tree Warden Chris Hayward released the list of tree species available for residents for the Spring of 2016.
There are 17 trees available, and the come in small (15-25 feet tall), medium (25-40 feet) and large (40-90 feet) sizes.
See the list here.
Hayward sent out the following information:
If you would like a tree to be planted, please email your top three choices to the Tree Warden at chayward@watertown-ma.gov. He will come out to your site to see if there is a suitable planting location and let you know whether a tree can or cannot be planted. Keep in mind, if you are interested, that trees can also be planted on private property within 20-feet of the public right of way.