By Denny Dyroff, Entertainment Editor, The Times Garden Glow Longwood Gardens (Route 1, Kennett Square, 610-388-1000, www.longwoodgardens.org) has started its new year with an enticing special event – “Garden Glow.” “Garden Glow,” which opened on February 13, will run through March 8. Nature and light collide in “Garden Glow’ — an enchanting after-hours journey through Longwood’s...