“My favourite thorn belongs to the rose with a name like a mouthful of broken teeth, Rosa sericea pteracantha. It is grown almost entirely for its astonishing ruby-red shark's fin thorns that are at their lapidary best in early summer, especially when backlit by a low setting sun.”

English horticulturist, broadcaster, and writer

Montagu Denis Wyatt Don is an English horticulturist, broadcaster, and writer, best known as the lead presenter of the BBC gardening series Gardeners' World. He has built a public career around gardening, appearing on television and writing about the subject. His work is most closely associated with Gardeners' World, where he has become a familiar guide on plants, gardens, and practical horticulture.