• A 'sea' of swaying grass Stipa tenuissima and blue flax (which can make linseed oil as a plastic liner alternative) represents water and movement, as you'd experience in a canal
• The Corten steel boundary wall represents marine piling, as seen on locks or motorway embankments. The varying heights of its outline echo an urban skyline

This conceptual garden represents a discarded bottle floating towards the shore. But far from being a depressing piece of pollution, it has a bright and appealing garden growing inside it. Its message is simple – that we can all take action to help prevent plastic pollution – whether within our own gardens, or in the vital urban green spaces in our towns and cities, and around our canals and rivers.

Created from iron, the bottle contains a variety of plants selected for their vibrant colours and beauty to represent the positive message that we can all do something to help. Surrounding the bottle is a sea of flax plants – chosen for their graceful blue flowers and swaying seed heads, but also because they represent the huge number of plant species that are used to make natural alternatives to plastic.