ARBlog is published online by the staff of the Arnold Arboretum. Follow us for an insider’s look at the Arboretum’s spectacular collections of living plants, including aspects of collections and landscape care, greenhouse and nursery production, and curation. Learn about some of our favorite plants and collections, share the perspectives of our talented plant experts, and join us for collecting expeditions around the world.

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Arboretum's Hunnewell Interns investigate soil health

October 8, 2015 by Arboretum Staff

A comprehensive analysis of soil heath across the Arboretum landscape provided a team-building project for participants in this summer's Hunnewell Internship Program.  more »

Traveling in the footsteps of "Chinese" Wilson

October 5, 2015 by Arboretum Staff


After four weeks in China in hot pursuit of new plant species for the Arnold Arboretum, Michael Dosmann, reports on his travels in Huanglong.  more »

On the trail of the elusive paperbark maple

September 30, 2015 by Arboretum Staff


Curator of Living Collections Michael Dosmann writes on his collecting trip to China, where he and colleagues searched for the paperbark maple.  more »

Weather, Weather, Everywhere

September 30, 2015 by Arboretum Staff

rain gauge in flower garden

Horticulturists tend to get a little obsessed with the weather.  more »

Field Collecting in Idaho

September 3, 2015 by Arboretum Staff


“Our North Idaho Expedition began at Farragut State Park on Lake Pend Oreille today (8/24). As we harvested snowberry fruits, a breeze coaxed stubborn wildfire smoke from the southernmost point of Lake Pend Oreille, Button Hook Bay.” -Kyle Port, Manager of Plant Records  more »

Autumn Creeps In

September 2, 2015 by Arboretum Staff

poison ivy, Toxicodendron radicans, fall foliage color

Poison ivy is one of the first woody vines to show changing leaf color in the autumn.  more »

Trees in Trouble

August 17, 2015 by Arboretum Staff

street trees

What happens when a city's trees are devastated?  more »

Tickled Pink

July 29, 2015 by Arboretum Staff

silk tree flowers

Silk tree flowers look like bright pink powderpuffs.  more »

A Wealth of Roses

July 7, 2015 by Arboretum Staff

Flower of Rosa orientalis

There are at least 100 species of roses (Rosa) in the world.  more »

Up in Smoke

June 24, 2015 by Arboretum Staff

smoketree, cotinus coggygria 'Daydream'

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

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