Cosmos Culture: Prefers full sun. Tolerates partial shade, poor soils, and drought once established. For earlier blooms sow indoors 4-6 weeks before last frost. Or sow outdoors after all danger of frost. Plant 1/4" deep; thin to 12"-14" spacing. Deadhead to prolong blooming. Seed heads will attract birds.
See also Sunflowers and Drying Flowers. Key to Flower Cultural Notes.
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