News: Japanese firm Kengo Kuma + Associates has unveiled plans to replace an ageing Tokyo medical centre with a louvre-clad hospital built around a landscaped garden. The new Seijo them to open out to a central courtyard featuring several trees. Describing her Suffolk Manor, which won the Planting Design Award, designer Sue said: 'Olive trees, box cubes, lavender, paeonias, irises, yew hedges