Explore 250 years of trees and celebrate America’s semiquincentennial in this workshop with Levi O’Brien on Saturday, July 4, from 10 a.m. to noon. A faculty member at the New York Botanical Garden and Brooklyn Botanic Garden, O’Brien teaches required woody plant courses for horticultural certification, along with in-depth public workshops.

Levi O’Brien is an ISA-Certified, TRAQ-Qualified arborist. A faculty member at the New York Botanical Garden and Brooklyn Botanic Garden, O’Brien teaches required woody plant courses for horticultural certification, leads talks and classes about trees at various arboretums and botanical gardens, and teaches all things trees at @leviobrien_trees on Instagram, TikTok, and other social media channelsHe also offers tree, garden and property consultations for private clients. In his spare time, he studies greenwood craft and wood science.