Chocolate Cosmos (Cosmos atrosanguineus) Deep maroon to almost black flowers with a velvety texture and a delightful chocolate scent, set against lush green foliage! Light: Full sun. Water: Allow soil to dry slightly between waterings, drought-tolerant once established. Soil: Well-draining, rich mix. Temp: 60-75°F (16-24°C). Humidity: Moderate. Fertilizer: Monthly during growing season, balanced 20-20-20. A unique and fragrant addition that adds elegance and a touch of whimsy to any garden!