**STRICTLY EMBARGOED UNTIL 2230 BST SUNDAY MAY 19** The Duke and Duchess of Cambridge, Prince George, Princess Charlotte and Prince Louis visit the Adam White and Andree Davies co-designed 'Back to Nature' garden during build week ahead of the RHS Chelsea Flower Show, London, UK, on the 19th May 2019. Picture by Matt Porteous/WPA-Pool **STRICTLY EMBARGOED TO 2230 BST SUNDAY MAY 19** EDITORIAL USE ONLY. 19 May 2019 Pictured: Prince George, Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Kate Middleton, Prince Louis. Photo credit: MEGA TheMegaAgency.com +1 888 505 6342