Urban tree professionals, tree wardens, persons working in the tree-care industry and anyone interested in learning more about the urban forest are invited to attend Trees in the Urban Landscape Symposium, to be held Thursday, November 20, from 9 – 3:15 at Tower Hill Botanic Garden, 11 French Drive in Boylston. $35 fee, with an additional $14 if you wish to reserve a box lunch. Sponsored by Tower Hill Botanic Garden and the Nathaniel Wheeler Trust, Bank of America, Trustee. For more information, or to reserve, visit www.towerhillbg.org.