On Saturday, Kate Middleton wowed wedding guests (and the entire world) when she wore a sophisticated, custom-made Alexander McQueen dress to her sister Pippa's nuptials. The Duchess of Cambridge paired her wedding attire with a hat that resembled an English rose in bloom. After the big weekend, which included a seriously adorable viral photo of Middleton with a slightly cranky Prince George , the Duchess stepped out today to attend the Chelsea Flower Show