Dig Deeper


Upcoming events

From Seed to Tree

Get a behind-the-scenes look of the greenhouse growing process the first Tuesday of the month at 1:00pm through October. more »

Fall Foliage Celebration

Members at the Sponsor level and above are invited to a fall foliage celebration on Saturday, October 15 (register by October 13). more »

Responses to Anthropogenic Climate Change

Camille Parmesan will speak about her work studying the impacts of climate change on wildlife, from field studies of American and European butterflies to synthetic analyses of global impacts on a broad range of species on land and in the oceans. more »

Plant Profile

flowers of Japanese pagoda tree
Bean Trees
September 14, 2016 Arnold Arboretum
Your garden green beans have many relatives growing at the Arboretum (but don't eat their pods!)

What's New

Callin Switzer
Bumblebee behavior
September 23, 2016 Research News
Some flowers release pollen out of small pores in the anthers. Bumblebees (Bombus impatiens Cresson) coax this pollen out by vibrating their bodies (buzz pollination or sonication). In research published in Apidologie, Callin Switzer and colleagues observed bumblebees in the urban environment of the Arboretum, the rural environment of the Concord Field Station and in the greenhouse. They found that they alter their sonication behavior depending on which plants they visit and the environmental conditions. abstract »
Post from the field, September 17, 2016
September 17, 2016 Arnold Arboretum
Our North America-China Plant Exploration Consortium (NACPEC) expedition to China has been a wonderful success so far. For the past several days, our team has been exploring valleys and mountains, documenting the common and unusual flora by making notes, as well as herbarium, seed, and occasional DNA collections of species of high priority to our institutions.
Post from the road - 11,500 feet up in China
September 14, 2016 Ned Friedman, Director of the Arnold Arboretum
I have spent two amazing days in the Huanglong Nature Reserve with wonderful botanical colleagues who will push on for the next ten days to search far and wide for a long list of plants to bring back to the Arnold Arboretum and share with other botanical gardens. Here in the alpine, I have been charmed by the subtle green needles of larches (Larix), at least three species of Sorbus (mountain ash) with white fruits and a tinge of pink, pines (Pinus armandii - a personal favorite), and on and on.
Brachypodium sylvaticum
The evolution of plant life history strategies
September 15, 2016 Research News
David Des Marais (Senior Fellow of the Arnold Arboretum) has been awarded a grant from the Department of Energy’s Joint Genome Institute to investigate the genetic basis of annual and perennial strategies in plants. Congratulations Dave! more »