Unnatural Selection
On February 4, Emily Monosson discusses how human activity affects plant and animal genetics.
Small Worlds
Josh Falk’s photos re-imagine the world of nature in an exhibition on view in the Hunnewell Building.
Field Studies
Strengthen science education in Boston as a volunteer guide in our Children’s Programs.
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Follow the Arboretum
Plant Profile
Cold Rhodies
(from Arnoldia 50/1, 1990)
The Arboretum's broadleafed evergreen rhododendrons are months from flowering, but winter visitors have the opportunity to observe a curious trait of rhodies: their leaves droop and curl tightly when temperatures drop below freezing. Read about possible reasons for this unusual thermotropic leaf movement. more »
What's New 
The biggest fruit in the world
Just how big is it possible for fruit to get? Arboretum and Harvard plant biologists have just published new research into what influences the extreme size fruit can grow to. more »
Warm up to exploration at the Arnold Arboretum
Exploring nature in winter can be a rewarding challenge and the Arnold Arboretum offers several walks this season to acquaint visitors with local flora and fauna. more »
A key urban intersection
Mounting evidence connects human health and urban green spaces, but uncertainty remains about the characteristics of the relationship and how cities can be designed to take advantage of them. more »
Portrait of a 125-Year Friendship
The Cambridge Plant & Garden Club is the longest active women’s garden club in America, and has enjoyed a long history of partnering with the Arboretum. more »
Glass Flowers exhibit features new display
Remarkable models of the Funaria hygrometrica group from a series illustrating the life cycles of cryptogams is temporarily on display at the Harvard Museum of Natural History. more »
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