Macy’s annual breath of fresh air in the springtime, the Flower Show, concludes this Sunday, just as the weather is threatening to actually warm up at least a little bit. This year’s theme is “Tower of Flowers,” with a trio of fairy-tale-like flower towers inside the Broadway entrance. On the first floor you’ll find the featured gardens, including Tropical, English Cottage, Hydrangea, Orchid/Bromeliad, Antebellum, Japanese, Urban Oasis, Miniature, Desert, and Rooftop displays, while the eighth floor has floral tablescapes by Waterford/Wedgewood, Lenox, Villeroy & Boch, and Edie Rose by Rachel Bilson (yes, the actress) as well as a tribute to the upcoming royal wedding. The final Bouquet of the Day is by Preston Bailey. Free guided tours are available every half hour from 11:00 am to 4:00 pm and meet at the entrance at 35th & Broadway.