Monty turns his attention to the containers in the jewel garden, plants courgettes and clematis and checks up on his bees.Arit Anderson meets a woman on a mission to green up unloved and neglected outdoor spaces in west London, and Nick Bailey continues his journey through the world of the iris - this time turning his attention to Siberian and water irises.We also meet a gardener in Somerset who has created the cottage garden of her dreams, and more Gardeners' World viewers share the joy their gardens bring them.