Costa Georgiadis finds a bushland roof garden in inner-city Sydney, Sophie Thomson explores the world of pollen, Jane Edmanson enjoys a South African plant collection, and Josh Byrne prepares his garden for guests.

Jane Edmanson explores the flora of Lord Howe Island, Josh Byrne meets a young beekeeper, Millie Ross makes a seedling tray, Costa Georgiadis gets a taste for green ants in Kakadu, and Hannah Moloney introduces her goats.