Landscape architect Will Sandy, who launched the initiative last year in London, said he hopes the show on 31 August-2 September will help to roll the project into the West Country. He is working with Cleeve Nursery in Bristol and Brett Aggregates on this next stage.
He took his message to a wider audience this month at the RHS Hampton Court Palace Flower Show with a show garden of plants, graffiti walls, a junked taxi and phone box.
Locals and groups such as gardening clubs are being asked to nominate new sites. The winner is to be mocked up in a garden at the Bath show. Entry forms are available at www.cleevenursery.co.uk or www.bathandwest.com. The deadline is 31 July.