Answer: The seeds you've harvested will eventually turn into lovely plants, but they won't flower as quickly as anemone grown from corms. The seeds have some special pre-germination requirements, and they can take a very long time to sprout. Sow seeds on the surface of moistened seed starting mix, fuzzy side up. Place trays or pots into a plastic bag and refrigerate for 2-3 weeks. Remove from plastic bag and sink the containers into the ground in a shady place in the garden. Cover with glass or plastic wrap to help hold in moisture. Seeds may take from 15-190 days to sprout! Transplant seedlings as they appear.
By the way, allowing the plants to produce seeds won't hurt them, or sap the strength of the corms.
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