This is a hybrid program, with on-site attendance limited to members only and online attendance open to the general public. Click here to join as a member.

The rhododendrons are in bloom! Join Horticulturist Brendan Keegan for a Tree Mob on this spectacular collection. This program will meet at the intersection of Hemlock Hill Road and Valley Road, where Rhododendron Path begins. If you are entering from Bussey St Gate, walk about 6 minutes down the paved road until you reach an intersection.

Accessibility: This program will involve walking over paved roads and mulch and gravel paths.

Audience: This program is geared towards adults.

Inclement weather policy: Participants will be notified via email at least one day in advance if a program needs to be cancelled due to inclement weather, and will be notified by phone if a program must be cancelled with less one day’s notice. Click here to view our full inclement weather policy. If you have questions about the status of a program, please email publicprograms@arnarb.harvard.edu (inbox monitored on weekdays) or call the Visitor Center desk between 10:00am and 4:00pm at (617) 384-5209.

Tree Mobs are short, spontaneous learning opportunities in the landscape based on seasonal phenomena. Click here to get notified of future Tree Mobs.