Answer: Datura produces trumpet-shaped flowers from early summer through autumn. If these flowers are pollinated by insects, seeds will form at the site of spent flowers. Look for an enlarged pod that's tannish-brown in color wherever your plant produced a flower. When the pods are dry you can cut them from the plant and open them to reveal the seeds. When the seeds are completely dry, store them in an airtight container in a cool, dark location. Late winter or early next spring sow the seeds 1/8" deep in moistened seed starting mix. They should sprout in 21-42 days when kept at 55F-65F degrees.
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