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In this special programme from the Royal Horticultural Society's gardens, Monty Don visits the RHS garden at Wisley in Surrey and Carol Klein visits Harlow Carr in North Yorkshire to get practical gardening advice from their experts and to find solutions to viewers' gardening dilemmas.

At Wisley, Monty looks at the vegetable garden to find out how it has fared over the difficult gardening year of 2012 and discovers what the RHS gardeners have been growing to excite the taste buds. He also gets a few top tips from the RHS fruit experts on the best grapes to grow for eating and the best for producing wine here in the UK.

At Harlow Carr, the northernmost garden of the RHS, Carol Klein discovers the plants which grow well in their harsher climate and along with the RHS experts, answers a few dilemmas from our northern viewers on choosing hardy plants for exposed conditions, what lawns need now to ensure a great sward in spring and how to propagate a favourite magnolia.