A visit to Adam Frost's garden, catching up on his new patio project and finding out what his plans are for the autumn. Arit Anderson travels to Somerset to meet landscape designer Dan Pearson, to hear about the design and planting principles he has used to create his own garden. In London, film director and musician Don Letts and his wife reveal how they have combined their different tastes for plants and culture in their town garden. Plus, another chance to see Frances Tophill meet a gardener who grows most of the vegetable ingredients needed for Thai cooking in her back garden and the two enthusiasts with a passion for air plants at their nursery in Lancashire.