Garden with terracotta 3D-print bricks wins Chelsea flower show green medal

Design created with no concrete and completely sustainable materials is first to win new environmental prize

A garden built with humble" terracotta made into 3D-printed bricks has won the first green medal at Chelsea flower show for being the most environmentally sustainable design.

This year's show, held in the Royal hospital gardens in south-west London, has a strong environmental theme. At the press day on Monday, Dame Judi Dench was presented with a seedling taken from the Sycamore Gap tree felled in Northumberland.