Episode 12

It is their final day at Chelsea, and Nicki Chapman and James Wong enjoy a last walk round their favourite gardens, before revealing their personal highlights from 2018's show. Royal florist Simon Lycett joins the team to show how to create a floral summer wreath, while Carol Klein explores the symbolism behind one of her favourite flowers, the iris. Debbie McGee is the day's celebrity guest, and she talks to Nicki and James about her passion for gardening and her search for quick-fix colour in her garden.