You are cordially invited to a picnic at Arnold Arboretum of Harvard University 125 Arborway, Jamaica Plain, MA, on Lilac Sunday.   For more details regarding the event please click here: https://arboretum.harvard.edu/visit/explore-with-us/expeditions-the-arboretums-new-mobile-app/.  Photo in the post re-used from here: https://culturaladuba.ro/povestea-liliacului-lui-theodor-aman/