Communities across Long Island and the nation will celebrate Arbor Day on Friday, April 24, 2026, with events dedicated to tree planting, environmental education, and the preservation of natural resources.
Arbor Day is an annual observance that encourages individuals and organizations to plant and care for trees, highlighting their essential role in improving air quality, conserving energy, supporting wildlife, and enhancing community landscapes.
The main Arbor Day event on Long Island in 2026 will be Branches in Bloom: A Spring Festival at Planting Fields Arboretum State Historic Park on Sunday, April 26, from 11 a.m. to 4 p.m. This free, family-friendly festival will showcase blooming magnolias and cherry trees, along with educational exhibits, guided tours, live music, and activities for all ages.
Additional celebrations include an Arbor Day event at Bayard Cutting Arboretum on Saturday, April 25, from 10 a.m. to 1 p.m., featuring free, family-friendly programming centered on the importance of trees and conservation.
Suffolk County will also mark the occasion with its “Plant it Forward” initiative, launching April 24 as part of the Suffolk County 250. The initiative introduces a Living Legacy Tree Registry to document tree plantings across the county in honor of the milestone celebration.
In addition, PSEG Long Island, in partnership with the Arbor Day Foundation, will promote proper tree planting through customer programs designed to enhance energy efficiency and support reliable service.
Residents are encouraged to take part in local events, plant trees at home, and support conservation efforts throughout their communities. For the most up-to-date event details or to register for activities, visitors should check the official websites of the Planting Fields Foundation and Bayard Cutting Arboretum.
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