Monty Don and Joe Swift embark on a horticultural trip around the globe at the world-famous flower show, discovering the people and plants that make it an international event. They are joined by Carol Klein, Adam Frost and the team to meet the international fleet of designers and plantspeople who travel thousands of miles to bring fresh ideas and fabulous floral creations to the show each year.

Monty Don and Joe Swift celebrate the positive power of plants as they focus on the designers and growers striving for a better world with the creations they bring to the event. They reveal how, over the years, the show has contributed to the better promotion of the health of the planet, plants and people, and talk to Countryfile presenter Ellie Harrison and BBC correspondent Fergal Keane about the importance of gardens to mental wellbeing.