Welcome to the Arnold Arboretum. Our 281-acre landscape featuring over 16,000 accessioned plants is open daily and free for all to explore. Whether coming for a stroll, on the look out for wildlife, or interested in learning the stories and science behind our plants, we have something for everyone. Explore our virtual walks, guided tours, Expeditions mobile app, and digital learning resources. If you're visiting with kids, check out a variety of self-guided family activities. Not sure where to start? Our visitor center staff is here to help.
Hours & Admissions
The Arboretum landscape is free and open every day. The visitor center is closed until further notice due to COVID-19.
- Landscape Hours
- Visitor Center Hours
- Currently Closed
- Always Free
Read about the Arboretum’s response to COVID-19 and safety guidelines for visiting here. Consider avoiding the following hours of peak visitation, 4pm-7pm on weekdays and 2pm-7pm on weekends. While here, we ask that you respect each other and the landscape. Read our visitor tips and guidelines to learn about bringing your dog, hosting events, riding your bike, and more so you can plan your best visit. Please see our tick warning.
Experience the Arnold Arboretum’s world-class Living Collections from Director Ned Friedman’s perspective. Click here to see this tour on Arb Explorer.
Take a walk with Michael Dosmann, the Keeper of the Arboretum’s Living Collections. Click here to see this tour on Arb Explorer.
Explorers Garden Tour
This quarter-mile tour through the Explorers Garden features stories from the Arboretum’s century and a half of collecting plants around the world. Click here to take this tour on Expeditions, the Arboretum’s mobile app.
Visiting with Kids
Everyday Nature Tasks offer nature enthusiasts of all ages an opportunity to explore the outdoors through simple, varied, and open-ended tasks related to plants, wildlife, and more!