Cosmos Bright Lights Mix Seeds – 400 Cosmos Sulphureus for Planting Spring 2026,
Full sun (6–8+ hours daily) is essential for strong stems and prolific blooming. Soil & Feeding: Use well-drained, average to poor soil. Cosmos sulphureus genuinely performs better with less. Water & Care: Low to moderate watering until established; highly drought-tolerant thereafter.