Double Cosmos "Rose Bon Bon" is a new variety of cosmos at Renee's Garden introduced for the 2010 growing season. A sample seed pack of this annual was sent out in the media packet for garden writers from Renee's Garden, which is how I acquired these seeds. The pink double flower of this low maintainance garden annual looks a lot like a peony. The blooms, about three inches wide are flouncy. "Rose Bon Bon" was grown by French breeders and they do look quintessentially French, no?