Monty Don crosses the heart of Britain, uncovering a garden with a Victorian rockery hiding a gnome now worth a fortune, and another so obsessively grand it drove its creator to ruin. Along the way he meets allotment holders, cut-flower growers, and the daughters of a nursery dynasty, each shaping a patch of land into something deeply personal. From Bodnant’s hand-dug terraces to Houghton Hall’s restored walled garden, this is Britain’s gardening history told through the people who lived it.