What a family! Kate Middleton received some lovely visitors while adding the final touches to her “Back to Nature” garden: her husband, Prince William, and their three kids — Prince GeorgePrincess Charlotte and Prince Louis.

The 37-year-old recently shared a preview of the garden she has been working on ahead of the RHS Chelsea Flower Show, London, by posing and smiling on a swing. “In recent years I have focused much of my work on the early years, and how instrumental they are for outcomes later in life,” the Duchess of Cambridge said in a statement. “I believe that spending time outdoors when we are young can play a role in laying the foundations for children to become happy, healthy adults.”

The show is set to kick off officially on May 21 at the Royal Hospital, Chelsea, but the royal’s family was of course given an early look — and the photos are adorable!

Scroll on down below to see Kate, William and their lovely kids in the garden!