I toured the Massee Lane Gardens at the American Camellia Society headquarters a few years ago. They were air layering many of their camellias. They also had greenhouses full of cuttings and the difference was that they take tiny little, 3" at most, cuttings which include a node and any remaining leaves are cut in half so they will require less moisture and nutrients. Most of us take larger, longer cuttings and that just does not usually work.
