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Levi O'Brien Tree School
Upcoming Events
Aug 22, 2026, 11:00 AM – 3:30 PMBrooklyn Botanic Garden, Brooklyn, NY 11238, USAIf you’re new to tree identification or need a refresher, this class is for you. You’ll learn the fundamental concepts used in dendrology while being introduced to the Garden’s most common trees.
Aug 23, 2026, 11:00 AM – 1:00 PMCentral Park West & West 100th Street, Central Prk W & W 100th St, New York, NY 10025, USATree ID If you’re new to tree identification or want to hone your skills, this class is for you. Buy tickets to both Central Park (Tree ID & Woodlore), and receive $15 off! (Email me your Venmo/Zelle after purchase)
Aug 23, 2026, 2:00 PM – 4:00 PMCentral Park West & West 100th Street, Central Prk W & W 100th St, New York, NY 10025, USAWoodlore Explore the vast history of tree use and cultural importance. Buy tickets to both Central Park (Tree ID & Woodlore), and receive $15 off! (Email me your Venmo/Zelle after purchase)
Aug 26, 2026, 10:00 AM – 4:30 PMBrooklyn Botanic Garden, Brooklyn, NY 11238, USALearn to observe a tree’s health and the drivers of decline. Students will learn the fundamental principles of disease, types of disease, and the impacts of injury and abiotic factors on tree health.
Aug 29, 2026, 11:00 AM – 3:30 PMBrooklyn Botanic Garden, Brooklyn, NY 11238, USAIf you’re new to tree identification or need a refresher, this class is for you. You’ll learn the fundamental concepts used in dendrology while being introduced to the Garden’s most common trees.
Aug 30, 2026, 11:00 AM – 1:00 PMWellhouse, 200 Well House Dr, Brooklyn, NY 11218, USATree ID If you’re new to tree identification or want to hone your skills, this class is for you. Buy tickets to both Central Park (Tree ID & Woodlore), and receive $15 off! (Email me your Venmo/Zelle after purchase)
Aug 30, 2026, 2:00 PM – 4:00 PMCentral Park West & West 100th Street, Central Prk W & W 100th St, New York, NY 10025, USAWoodlore Explore the vast history of tree use and cultural importance. Buy tickets to both Central Park (Tree ID & Woodlore), and receive $15 off! (Email me your Venmo/Zelle after purchase)- Sep 05, 2026, 5:00 PM – 7:00 PMUntermyer Gardens, 945 N Broadway, Yonkers, NY 10701, USAEmbark on an entertaining and educational walk through the beautiful formal gardens and woodland carriage roads of Untermyer Gardens as you discover the historical importance, cultural meaning, ecology, biology and horticulture of some amazing trees.
Sep 12, 2026, 1:00 PM – 4:00 PMMt. Cuba Center, 3120 Barley Mill Rd, Hockessin, DE 19707, USAWoodlore, Cultural and Historical Uses of Trees Every tree has a story. Join Levi O'Brien for a captivating exploration of the ways trees have shaped human culture, technology, folklore, and history.
Sep 13, 2026, 1:00 PM – 4:00 PMLongwood Gardens, 1001 Longwood Rd, Kennett Square, PA 19348, USAPut your observational skills into practice as you marvel at Longwood Gardens' world-class tree collections with tree expert Levi O'Brien.
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