Answer: The pods may contain viable seeds (or the seeds may be sterile, depending upon insect activity and cultivar). It's usually better for your plants if you cut off the flowering stem after the flowers are spent and before they set seeds. (Seed setting saps energy which could be used for increasing foliage and root systems.) However, since your plants have already set seed pods you can allow them to ripen (the pods should turn brown and feel dry) and then you can harvest the seeds, store them in a cool, dry location, and then plant them in the spring. Who knows, you may end up with new plants! They may not come true in color or size, but they'll be uniquely yours.
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