1000 Cosmos Sensation Seeds - Long Blooming Period in All Zones 4-5' Tall Cosmos Sensation - 1000 Seeds Approximately - 4-5' Tall Easy to Grow Annual in All Zones, As the seeds do not need light to germinate, they can be sown directly or covered with 1/4 inch of soil. Sow your Cosmos seeds in the Full Sun to Partial Shade. As cosmos flowers are very adaptable, they can thrive in average to poor soil quality, and they are tolerant to dry conditions. Non GMO and Neonicotinoid Seed. Good for cutting and containers as well as in garden. Marde Ross & Company has been a Licensed California Nursery Since 1985,