In this Christmas special, Monty Don, Carol Klein, Joe Swift and Rachel de Thame celebrate the festive season from a gardener's point of view. At Longmeadow, Monty and Rachel have a good clear up, cutting back some plants but leaving others for winter structure and wildlife. Monty also rejuvenates his rhubarb patch and introduces a local Herefordshire heritage variety apple tree to his orchard. He enlists Joe Swift's help to move a holly tree that has outgrown its situation. Out and about, Carol Klein discovers some of Britain's best winter walks. Rachel de Thame gets tips on how, with a bit of ingenuity, anyone can make beautiful Christmas decorations from their own garden. Joe Swift visits an urban vineyard in Hackney, East London to find out which grapes can be grown at home. As a special Christmas cracker, Pam Ayres, poet and gardener, shows us how she encourages wildlife into her garden and provides for seasonal visitors during the colder months.