Focusing on the Flower Show theme of A Feast for the Senses, Hilda Morrill, founder of bostongardens.com, will share some of the special gardens she has enjoyed in her world travels in a talk to be held in the Lecture Hall of the Seaport World Trade Center, 200 Seaport Boulevard, at 5 pm on Wednesday, March 24.  The lecture is free with admission to the Boston Flower & Garden Show.  For more information on the show, log on to www.TheBostonFlowerShow.com.