Monty Don presents Gardeners' World from RHS Rosemoor in Devon. He will be finding out how they grow really productive fruit trees in the smallest of spaces and what it takes for a vegetable to earn the RHS Award of Garden Merit. Carol Klein will also be at Rosemoor getting seasonal inspiration from their extensive sedum collection, all nestled within the stunning borders in the garden. Joe Swift pays a visit to Scampston Hall in North Yorkshire to find out how a ten year experiment in naturalistic planting, by garden designer Piet Oudolf, is shaping up. Have you ever wondered what the life of an RHS volunteer is like? We visit RHS Harlow Carr near Harrogate to find out how the volunteers are vital in maintaining such a beautiful garden.