Rhubarb All OSE receive Rhubarb annually, either in hardcopy or electronic format. If you are an OSE and have not been receiving Rhubarb recently, you may need to update your details. Rhubarb 2022 Rhubarb 2021 Rhubarb 2020 Rhubarb 2019 Rhubarb 2018 Rhubarb 2017 Manage Cookie Preferences