Scented Pelargoniums are tender perennial plants that we over winter in a cold greenhouse, polytunnel or in mild areas a sheltered spot.
As well as potential winter loses, plants also have a tendency to become woody and flower poorly as they age.
Taking cuttings is your insurance policy against losing plants.
It’s tempting to take cuttings just before winter when we cut them back to fit into greenhouses, however they won’t have time to establish a good root system and will likely rot over winter.
Take them instead during summer for much better results.