BRAINERD — Northland Arboretum gains regional parks designation.

Readers Say The best green spaces to visit in Greater Boston and beyond Warmer weather is on the horizon — here are the best outdoors spots near Boston for fresh air and relaxation. Arnold ...

The following article was originally published on the Arnold Arboretum’s website and is republished here with permission from the Arnold Arboretum. The Arnold Arboretum is an outdoor classroom and ...

The Emerald Necklace, Olmsted Park, and Arnold Arboretum located in the picturesque state of Illinois, offers an Easy and enjoyable outdoor experience for cyclists of all skill levels. This ...

One of Boston’s great green spaces, the Arnold Arboretum invites the public to enjoy its hundreds of acres of blooming flowers, shady trees and winding paths for free. But for people in ...

There was another map by the Arnold Arboretum published in 1938, which had some differences from the USDA map, causing confusion among gardeners.

In 1927, a taxonomist at Harvard’s Arnold Arboretum, Alfred Rehder, first published his “Manual of Cultivated Trees and Shrubs Hardy in North America.” ...

That map showed only eight hardiness zones. The USDA first published a PHZM in 1960 with weather data collected from 450 locations, but this map created confusion because it and the still-in-use ...

The following was written with contributions by Jon Hetman, Lisa Pearson, and William (Ned) Friedman on behalf of the Arnold Arboretum community, and originally published on the arboretum’s website.

Harvard’s Arnold Arboretum Is Looking Toward the Next 150 Years The 281-acre park, which turns 150 this year, may hold clues on how to navigate an increasingly extreme ecological future.