Charlie is one of Britain's best known and best loved gardeners having first come to the nation's attention on BBC1's incredibly popular Ground Force.
Monty's personal story is one of triumph over adversity including overcoming bankruptcy and depression to the glittering career he has now. He's incredibly engaging, charismatic and passionate about how we can all make the world a better place through reconnecting with each other.
Diarmuid Gavin is one of the mavericks of the world of garden design. His innovative work has helped to make Home Front in the Garden one of television's most watched gardening programmes.