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Levi O'Brien Tree School
Upcoming Events
Sep 05, 2026, 5:00 PM – 7:00 PMUntermyer Gardens, 945 N Broadway, Yonkers, NY 10701, USATree Tour Embark 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 06, 2026, 11:00 AM – 1:00 PMCentral Park West & West 103rd Street, Central Prk W & W 103rd St, New York, NY 10025, USATree ID I opened two more Tree ID classes! They’re selling quick! See you there!
Sep 06, 2026, 5:00 PM – 7:00 PMCentral Park West & West 72nd Street, Central Prk W & W 72nd St, New York, NY 10023, USATree ID I opened two more Tree ID classes! They’re selling quick! See you there!
Sep 07, 2026, 1:00 PM – 3:00 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.
Sep 09, 2026, 5:00 PM – 7:00 PMCentral Park West & West 72nd Street, Central Prk W & W 72nd St, New York, NY 10023, USATree ID If you’re new to tree identification or want to hone your skills, this class is for you.
Sep 10, 2026, 5:00 PM – 7:00 PM200 Well House Dr, 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.
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, USATree ID Put your observational skills into practice as you marvel at Longwood Gardens' world-class tree collections.
Sep 26, 2026, 12:00 PM – 4:00 PMThe Dawes Arboretum, 7770 Jacksontown Rd, Newark, OH 43056, USAWoodlore Join Levi in exploring the world of trees! We will cover historical importance, cultural meaning, ecology, biology and horticulture, as well as foundational skills of identification.
Oct 02, 2026, 8:30 AM – 3:00 PMThe Morton Arboretum, 4100 IL-53, Lisle, IL 60532, USATree Anatomy & Physiology Learn the different parts of a tree, how they function, and practical implications for tree care professionals.
Oct 03, 2026, 9:30 AM – 11:30 AMThe Morton Arboretum, 4100 IL-53, Lisle, IL 60532, USATree ID If you’re new to tree identification or want to hone your skills, this class is for you.
Oct 03, 2026, 12:30 PM – 2:30 PMThe Morton Arboretum, 4100 IL-53, Lisle, IL 60532, USA250 Years of American Woodlore Explore the history of how trees have shaped American life and culture.
Oct 10, 2026, 9:00 AM – 1:00 PMChicago Botanic Garden, 1000 Lake Cook Rd, Glencoe, IL 60022, USATree ID This immersive introduction to tree identification provides a half-day outdoor experience to develop and hone your skills in tree recognition. Learn the fundamental concepts used in dendrology—the scientific study of trees—while examining some of the area’s most common trees.
Oct 11, 2026, 9:00 AM – 12:00 PMChicago Botanic Garden, 1000 Lake Cook Rd, Glencoe, IL 60022, USAAll Things Insect! Learn the fundamentals of insect ecology, anatomy, and diversity.
Oct 11, 2026, 1:00 PM – 4:00 PMChicago Botanic Garden, 1000 Lake Cook Rd, Glencoe, IL 60022, USATree Anatomy & Physiology Learn the different parts of a tree, how they function, and practical implications for tree care professionals.
Oct 17, 2026, 1:00 PM – 4:00 PMChicago Botanic Garden, 1000 Lake Cook Rd, Glencoe, IL 60022, USAWoodlore From wood to bark and railroads to medicine, discover why locust and pine won naval battles and how roller skating changed the industrial textile industry.- Oct 18, 2026, 1:00 PM – 4:00 PMChicago Botanic Garden, 1000 Lake Cook Rd, Glencoe, IL 60022, USATree Anatomy & Physiology Learn the different parts of a tree, how they function, and practical implications for tree care professionals.
Oct 24, 2026, 1:00 PM – 3:00 PMFernwood Botanical Garden, 13988 Range Line Rd, Niles, MI 49120, USAWoodlore Explore the vast history of tree use and cultural importance.
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