This is your one-stop guide and map to everything that's happening in the 2013 Chelsea Fringe (May 18 - June 9), a volunteer-run festival of community growing and artistic garden events across London and beyond. From installations and pop-ups, to walks, talks and exhibitions, the Chelsea Fringe is the world's first alternative gardening festival, pendant to the world-famous Chelsea Flower Show, of which it is entirely independent.

Use the map and search facility to track down some of the 150 (at least) events and happenings within this initiative, which operates as a true, open-access Fringe festival. The only rule of the Fringe is that if a project is on-topic, legal and interesting, it's in. Download the app and discover a side of London you didn't know existed.