Kennedy’s Country Gardens , at 85 Chief Justice Cushing Highway, Rt. 3A in Scituate, is sponsoring a President’s Day Weekend event featuring free garden related seminars, information, plant sales and specials.  Horticulture groups, including the Massachusetts Horticultural Society, will be available to offer advice.  The event is free.  For more information, call 781-545-1266, or log on to www.kennedyscountrygardens.com.