Horticulturalists express alarm after award-winning Matt Keightley launches app that can automate designs

With glasses of champagne sipped among the peonies, Chelsea flower show is generally a friendly and genteel occasion. But this year, the secateurs have been drawn as gardeners clash over the use of AI in designing the exhibits.

Matt Keightley, an award-winning designer who has created gardens for figures including Prince Harry, is using artificial intelligence to design his garden for the prestigious show, held at the Royal Hospital gardens in Chelsea, London, next week.