Registration will open in January at www.chelseafringe.com.
The festival is a celebration of all things garden, landscape and environment related and involves community garden groups, individuals, artists, poets, restaurateurs, museums, galleries, schools, hospitals. The 2015 Festival will run from May 16 to June 7.
This year there are 'satellite' Chelsea Fringes planned for Melbourne, Milan, Nagoya, and Henley-on-Thames, in addition to Brighton, Bristol, Kent, Vienna and Ljubljana.
Festival director Tim Richardson said: "When the Fringe began I always envisaged it could be a national or international event, but that side of things has grown much more quickly than expected, to our delight and astonishment. In fact in the 2014 Fringe there were as many events outside London as there were in the capital. The idea has clearly struck a chord with people. We have been constantly amazed by the inventiveness and drive of Fringe participants and are now actively looking to encourage new participants as well as those who have been in the Fringe before."
The Fringe has grown from 100 events in 2012 to 250 in 2014.The first event to register for the 2015 Fringe is Drawing Squares of Georgian London, a look at three of Bloomsbury’s squares and gardens.
Another confirmation is the Espacio Gallery in Bethnal Green.