Jane Edmanson explores the wonders of Lord Howe Island, Jerry Coleby-Williams meets a man breeding the perfect purple corn, Millie Ross has some mid-season crop solutions, and Sophie Thomson is being a plant detective.

Costa Georgiadis is at Queensland's Garden Expo, Tino Carnevale plants a 3D patch, Josh Byrne picks some native ground covers, Sophie Thomson describes her more unusual vegetables, and we meet a man who only grows peonies.