Thanks! This is a Rose of Sharon, which I just learned is a type of hibiscus lol. It must be a double bloom verity because its flowers are super dense with pedals. It puts out tons and tons of seeds, which makes tons and tons of babies. We've taken to pulling the seed pods off in the fall, but did transplant one of the volunteer seedlings. It has the same color flowers, but way fewer pedals.
Once the flower pedals fall off a seed pod will form. As the season progresses it will dry out and split open, dropping round seeds. The things in the foreground are seed pods. You can see one that's opened in the back. We live in zone 6, which means the plant drops its leaves before the pods open, making them easy to find.
Our seedlings have proven to be pretty hardy and tolerant transplanting well. They flowered beginning in year three, but didn't really start producing a lot of buds until year five.