Mary Keen is an internationally known designer who has worked on gardens in France, Corfu and America as well as for many high-profile clients in England. She has made several gardens for Lord Rothschild and she also designed the gardens around the new opera house at Glyndebourne. She has lectured in New York, Chicago, Seattle, Vancouver and South Africa as well as in England. For twenty years, she was a member of the National Trust Garden panel which advises on the care of important and historic gardens.