Image shows drought tolerant planting at the Barbican gardens in London in bloom in late summer including Kniphofia ‘Tawney King’, Achillea ‘Terracotta’, Crocosmia Emberglow, Verbena bonariensis, Salvia nemorosa and Echinops ‘Veitch’s Blue’. Planting by Nigel Dunnet. Green infrastructure by Pritchard & Pritchard.