Landscapers and gardeners might never be mistaken for Superman, Spider-Man or Wonder Woman, yet those with green thumbs get their rightful due at the Boston Flower & Garden Show, which returns to the Seaport World Trade Center March 22–26 with the dynamic theme “Superheroes of the Garden.” The largest show if its kind in New England, this year’s gathering showcases dozens of horticultural displays by both amateurs and professionals, many of which vie for garden bragging rights. Also check out a cornucopia of vendors selling everything from seeds to the latest gardening accessories, as well as an overgrowth of experts who can answer all of your questions about making your home garden pop. And don’t miss the preview party on March 21 at 6:30 p.m., which features food, beer, wine and live music, all to benefit The Genesis Foundation for Children.