Celebrate Earth Month by thanking the park’s trees for all that they do. As an accredited Level II Arboretum, Madison Square Park has over 300 trees and a rich diversity of species to enjoy.

Mailboxes with writing materials will be located throughout the park for you to show your love for any tree in the park by writing a handwritten letter, composing a poem, or creating a drawing.

Click here to view the map of mailbox locations in the park.

Place your completed letter in one of the dropboxes located throughout the park, or post your letter on Instagram and tag @madsquareparknyc