At Longmeadow, Monty gives us a masterclass on growing Mediterranean herbs, plants lily bulbs for summer scent, and in the vegetable garden, he begins to sow seeds for salad root crops. Carol Klein is in Devon, where she takes a close look at late summer planting combinations. Meanwhile, in Cumbria, there's a gardener whose passion for exotic plants and dahlias has taken over his family garden and spilled over onto his allotment. In Milan, Arit Anderson visits an extraordinary high-rise building which has been designed as a living forest, and in Kent is a man with a collection of over 80 different varieties of wisteria. Meanwhile, viewers give hints and tips from their own gardens.