It was the first time CFS has had an RHS schools gardening project event. (CFS is one RHS event, but easily the most well-known and most extensively televised)
I can't find a list of schools, but they were all London ones, and they targeted areas with high markers of deprivation. The schools then chose which pupils attended.
I think it's a good think that RHS is trying to make gardening more diverse. I like it that it's now pretty normal for plants from show gardens, once dismantled, to be donated to community projects. And I love it that a garden inspired by a community garden in a housing estate less than 1 mile from CFS and partly built by their volunteers, won a Gold this year