Gardeners' World

Episode 8 (47x8)

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Carol Klein visits eminent plantsman Keith Wiley at his garden in Devon, which celebrates the exquisite dog's tooth violet. Keith is passionate about these unsung woodland plants. Rachel de Thame visits the Royal Botanic Garden in Edinburgh to take a look behind the scenes at their world-renowned collection of alpines and find out what it takes to keep their fantastic display at the peak of perfection. And at Longmeadow, Monty Don cracks on with some timely tasks and makes a start on planting up a yew hedge.