Tower Hill’s 18th annual self-guided tour of distinctive private Massachusetts gardens takes place on Sunday, June 24. Visit private gardens of distinction on this exclusive tour. This year’s tour includes a mix of gardens in Boylston, Berlin, Hudson and Northborough. All ticket proceeds from the 2012 City Spaces/Country Places Garden Tour support education programs at Tower Hill Botanic Garden. Buy your tickets today on line at www.towerhillbg.org.