They last a lot longer if you do refrigerate them though. Particularly with soft flesh fruits like plums, that have about 12 hours of good ripeness before they start bletting if you leave them at room temperature.
“Like the fruit of the medlar, sooner rotten than ripe.”
You don’t have to refrigerate plums. If you leave them out you’re more likely to pass by them and go “oh hey plums” and bam.
They last a lot longer if you do refrigerate them though. Particularly with soft flesh fruits like plums, that have about 12 hours of good ripeness before they start bletting if you leave them at room temperature.
“Like the fruit of the medlar, sooner rotten than ripe.”