Peter Seabrook and Diarmuid Gavin are added to the presenters past and present in the fiftieth anniversary year for the TV programme.
Gardeners’ World presenters Monty Don, Carol Klein, Joe Swift, Adam Frost, Frances Tophill, Flo Headlam and Nick Bailey all appear, as will Alan Titchmarsh and Toby Buckland.
BBC Two’s Gardeners’ World will broadcast a one-hour anniversary programme on 16 June, filmed at the show on 15 June. Former presenters including Seabrook and TYitchmarsh will be interviewed on stage.
The TV programme’s Golden Jubilee Plant will be crowned from 10 nominations at the show with Mary Berry announcing the winner. So far, Tv presenters Rachel de Thame has nominated aquilegia, Nick Bailey dahlia, Monty Don bedding, Mark Lane echinacea, Frances Tophill chilli and Joe Swift stipa gigantica.
Floral Marquee exhibitors with themed 50th exhibits include Flowers From the Farm, Barnsdale, Primrose Hall Nursery and Pennard Plants.
There will be a Changing Face of Gardening feature displaying all the nominations plus historical tools and memorabilia from the programme.
The show will also have a Nostalgia Garden and Anniversary Garden and a Jubilee bedding display of Golden African Marigold and Lobelia Cambridge Blue.
Flowers previously named after presenters Alan Titchmarsh, Carol Klein, Geoffrey Smith, Geoff Hamilton, Peter Seabrook and Rachel de Thame will be on display.
The RHS has a display on the history of the TV show at its London Lindley Library, then on tour at its four gardens.