Joe Swift and Rachel de Thame are joined by James Wong to give a guided tour of the show.

Artist and Royal Academician David Mach joins RHS medal winner Cleve West to fathom whether the Conceptual Gardens should be viewed as horticulture or art.

The programme also reveals those who have won coveted RHS medals with this year's designs, in which the wives of Henry VIII and replanting for our future have been strong themes. Show less