This series of books celebrates some of the most beautiful, oldest and well-loved flowers. Each book in the series looks at a different theme and, through images by leading flower photographers, reveals overlooked cultivars or rare species. Before looking at over 30 different species, each book investigates the plant in history, art, perfume and medicine. Practical information is included in each book. From pruning and plantings, to suppliers' contact information and which National Trust gardens feature the plant.

Iris occurs in a wide variety of habitats in most of the Northern Hemisphere. Almost all have showy and characteristic flowers, and many have become established garden favourites.