A garden is to be built in honour of forces’ charity Help for Heroes at the RHS Chelsea Flower Show in May.

The plot, designed by 29 year-old Matthew Keightley, will mark sacrifices made by British troops who are being withdrawn from Afghanistan this year. Many have suffered horrific injuries and long-term mental health problems.

It will be based on the shape of the Military Cross – the medal awarded for extreme bravery. After Chelsea, the garden will be relocated to the Help for Heroes Recovery Centre in Colchester, Essex.

Called Hope on the Horizon, the plot will feature an avenue of hornbeams and ‘calming’ planting such as foxgloves and Oriental poppies.

Designer Matthew said the garden would reflect a journey from “distress” to rebuilding lives and achieving “hope-filled futures”.

He said: “I want to represent the men who have suffered injury or loss. It’s about Derek, a rugby player who has lost both his legs; it’s about Carl whose jaw is wired up so he has been drinking through a straw. It’s about Richard who was handed a mobile phone as he lay on a stretcher so he could say goodbye to his wife. They are our heroes.”