Adult Education

The Arnold Arboretum of Harvard University is a community resource for education, offering a variety of learning opportunities including lectures, classes, workshops, and tours of our living collections and historical landscape. Join us as we explore the biology and horticulture of woody plants, and delve into topics related to Earth’s biodiversity and evolutionary history, the environment, conservation biology, and key social issues associated with current science.

Featured Programs

Next Tree Mob™

Hickory Syrup

For many from New England, the only syrup approved for pancakes is that which is locally-tapped from a sugar maple (Acer saccharum). However, sap isn’t the only tree source for making syrup. Arboretum horticulturist Sue Pfeiffer took advantage of a downed shagbark hickory (Carya ovata), gathered some bark, and then proceeded to bake and boil. The culinary result is a gorgeous amber-yellow delight. Join us in the Hunnewell Building to learn about turning hickory bark into gold and to taste a sweet sample at 3:45pm on December 14.

Parking: Park along the Arborway near the Arborway Gate.

Public Transportation: Take the MBTA Orange Line to Forest Hills. At the upper level of the station, cross Washington Street and go to the right. Walk uphill on the sidewalk that parallels the down ramp. Continue until you reach the Arborway Gate (approximately a 15 minute walk). Or take the 39 Bus to South and Sedgwick Streets. Walk west on Custer Street to the Arborway and cross at the lights to the Arboretum. See map of the landscape.


The Hidden Half of Nature


David R. Montgomery, PhD, University of Washington, Earth and Space Sciences, and Ann Bikle, MLA, Biologist and Environmental Planner
Sunday, January 8, 2:00–3:30pm
Location: Hunnewell Building

From garden to gut, David R. Montgomery and Anne Biklé will present a new view of the tiniest creatures on Earth and how it is changing the way we see nature and ourselves. Through the twists and turns of history, science, and personal experience, they’ll reveal our tangled relationship with the microbial world, including the stunning similarities between what’s going on around the roots of plants and deep within the human gut.
Fee Free member and student, $10 nonmember
Register at or call 617.384.5277.