The Arnold Arboretum of Harvard University
An Arnold Arboretum lilac. Scientific name: Syringa vulgaris 'Hulda'
If you plan to join the thousands of people enjoying Lilac Sunday at the Arnold Arboretum, here's what you need to know. First of all, don't drive.
Really. Don't do it.
It's good advice every year but it's crucial for Sunday's edition of the event. That's because on Saturday, the state is closing the inbound side of the Casey Overpass. That's the side of the decrepit span going toward the Arboretum.
Inbound traffic will be shunted to a new temporary road. Arboretum officials encourage choosing a 
Screen shot of Arboretum Explorer, available at http://arboretum.harvard.edu/explorer/[/caption]
Whether you're visiting just for Lilac Sunday or you're a resident who often walks through the Arbs, consider adding the Arnold Arboretum's app to your smart phone. Browse over to http://arboretum.harvard.edu/explorer/ and you'll have a nifty interactive map in your hand. Not only will it help you find your way around, you can also get specifics on the trees and the rest of the Arboretum's collections. If you're an iPhone user, we didn't find Arboretum Explorer in the app store. But you can put an icon on your phone for easy reference by using the "Add to Home Screen" button.
Support JP and Roslindale Businesses
While restaurants tend to be busy with Mother's Day, the thousands of visitors flowing into the Arboretum often don't visit Jamaica Plain's business districts (or Roslindale Square, for that matter.) As we learn of retailers who'll be open Sunday, we'll add them here.
Learn More
The Arboretum's Web site has much more information, including how to become a member.