Kate Middleton and Prince William visit Chelsea Flower Show

Prince William and Kate Middleton attended the Chelsea Flower Show today, for the first time, joining Harry, the Queen, and Princess Anne, who have regularly attended the event (Prince Andrew, as well as Princesses Beatrice and Eugenie, were also in attendance). (Instagram)

Kate wore a green Catherine Walker dress. (Instagram)

Kate, the Duchess of Cambridge arrives at the 2016 Chelsea Flower Show in central London. (AP)

Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge attend Chelsea Flower Show press day at Royal Hospital Chelsea in London, England. (Getty Images)

The prestigious gardening show features hundreds of stands and exhibition gardens. (Getty Images)

(Getty Images)

(Getty Images)

Queen Elizabeth II attends Chelsea Flower Show press day at Royal Hospital Chelsea. (Getty Images)

Sophie, Countess of Wessex (Getty Images)

Princess Beatrice (Getty Images)

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