Episode 12

Monty gets going on a new project this week when he starts planting a colour-themed, fragrant border, and he has tips on successional planting in the vegetable garden.

Nick Bailey begins his ultimate guide to growing clematis and this week looks at spring-flowering clematis, while Arit Anderson visits a new, free, public roof garden in London, which soars above the city space below. Carol Klein travels to Arundel Castle in West Sussex, where alliums are taking centre stage, Joe Swift finds out about the restoration of one of our most historic woodland gardens, Leonardslee, and at Chatsworth House in Derbyshire, we meet a gardener who grows most of the cut flowers for their floral displays.