Season 1 Episodes6
Cast2

Diarmuid Gavin
Presenter

Carol Klein
Presenter
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Carol Klein and Diarmuid Gavin lead the search along with guest judge and keen gardener Katie Piper to find Northern Ireland’s greatest garden.

Diarmuid Gavin
Presenter

Carol Klein
Presenter
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"Episode 4" is episode 4 of Greatest Gardens with Diarmuid Gavin and Carol Klein season 1. It aired on April 13, 2026.