Answer: These gorgeous flowers are, unfortunately, considered annuals, so there is no point to dividing them. You may find that they will reseed in the garden if spent flowers are left on the plants, or you could try collecting seed to plant in the spring. However, the resulting plants will not necessarily be as lovely as the parents. If you want to propagate these and be assured of similar results, I would suggest you purchase new plants or seeds next spring. I'm sorry I can't be more encouraging.
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