Lecture Series
Hear talks by nationally recognized experts as part of the Director’s Lecture Series.
Aviflora Activities
Attend a free talk on birds and woody plants this Wednesday, and meet the artists next Saturday.
What's New 
Arboretum’s Weld Hill Research Building Awarded Prestigious LEED® Green Building Certification
February 3, 2012 Arnold Arboretum
The Arnold Arboretum is pleased to announce that the Weld Hill Research Building has been awarded LEED® Gold in assessments established by the U.S. Green Building Council and verified by the Green Building Certification Institute. more »
Arboretum heralds new USDA Hardiness Zone Map
January 26, 2012 Arnold Arboretum
The release of an updated Plant Hardiness Zone Map by the USDA provides useful guidelines to predict a region’s average annual minimum temperature, a vital statistic in determining whether a plant will survive in a given area. more »
Warm weather encourages winter annuals
January 10, 2012 Arnold Arboretum
The unusually warm weather we’ve experienced in southern New England this fall and winter encourages the growth of a group of weedy herbs known as winter annuals. more »
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