smoketree, cotinus coggygria 'Daydream'
Up in Smoke

A haze of fluffy inflorescences now cloaks many of the smoketree (Cotinus) specimens at the Arboretum.

more »
Tree_Spotting2
Citizen Science

Observe and record the life cycle events of plants as an Arboretum Tree Spotter. Training Session on July 8.

more »

What's New

Nature Photography Workshop
1:00pm, Saturday, July 25, 2015 Arnold Arboretum
Improve your photographs of nature in this half-day workshop–a talk followed by hands-on experience. Learn about composition, color, light, depth of field, and focus.
Free Fun Fridays!
10:00am-3:00pm, July 24, 2015 Arnold Arboretum
Come to the Arboretum on July 24, 2015 and enjoy FREE activities, 10 am to 3 pm, part of the Highland Street Foundation's Free Fun Fridays program.
Exploring the Conifer Collection
6:00pm, Wednesday, July 8, 2015 Arnold Arboretum
Jim Gorman will lead participants through the Arboretum's Conifer Collection, explaining key identification features, natural history, medicinal and economic uses, and horticultural firsts.
From Seed to Tree
1:00pm-2:00pm, Tuesday, July 7 Arnold Arboretum
Get a behind-the-scenes look of the greenhouse growing process, from seed to sprout to seedling to tree.
Culture, Collections, and the All-too-comfortable Guest
6:00pm, Wednesday, July 1, 2015 Tree Mob
Consider the Tree of Heaven, Ailanthus altissima, once an invited guest, now a well-grounded invasive and exotic presence in the urban landscape.