Step inside the Old Laboratory to see the Wisley: Then and Now exhibition, showing how the iconic RHS garden has been shaped, transformed and continually reimagined over the years, from its unlikely beginnings as a muddy Surrey landscape to one of the world’s most visited gardens. Part of the RHS ‘Growing Our Story’ theme, the exhibition invites visitors to look again at Wisley and discover how experimentation, ambition and change have always been at the heart of the garden. Included in normal garden admission.