Thousands Flock to Lilac Sunday 2015

Eleanor Robinson of Weymouth takes a whiff of one of the sweetest lilacs in the collection. Credit: Richard Heath

It was very close after a cold spring, but the lilacs made it through, blooming and blossoming their very best for the thousands who flocked to the Arnold Arboretum for the 2015 edition of Lilac Sunday. Here's a gallery of photos from the Mother's Day tradition, which is estimated to draw more than 30,000 people.