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Gardening magazine. Carol Klein visits Keith Wiley's garden in Devon, which celebrates the dog's-tooth violet. Rachel de Thame is at the Royal Botanic Garden in Edinburgh.

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.

First shown: 8.30pm 25 Apr 2014 1 day left Duration 29 mins

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