Rose essential oil from nature The name Rose which refers to the rose because of its therapeutic virtues has a long and illustrious history. Particularly the Romans like rose petto their bathwater. Boms are collected in the early morning when oil content is at its greatest in order to preserve as much oil as possible. These blooms are quickly deed to the distillery where they undergo a two-stage distillation process to extract as much oils as possible. One pound of rose essential oil is reported to require up to two tonnes of rose pet.