They were allegedly named after the English packaging equipment company "Rose Brothers" based in
Gainsborough,
Lincolnshire, that manufactured and supplied the machines that wrapped the chocolates. In 2020, an alternative origin of the name was given in a text panel printed on the side of tubs of Roses. It notes they were named after the favourite flowers of
Dorothy Cadbury, a director of the company and renowned botanist, which grew in the gardens of the original factory at
Bournville. Upon launch in Ireland they were called 'Cadbury's Irish Rose'; however, this name was discontinued in the 1970s. ==Marketing==