Cosmos flowers are easy to care for plants that thrive in sunny spots in well-drained soil. They don't need a rich soil and will tend to flower more profusely if grown on a medium to average fertility. Cosmos will tolerate some dry spells once established, and require only occasional watering during periods of prolonged dryness. Removing spent flowers can stimulate more blooms and prolong the flowers' life. Staking may be necessary on taller varieties in strong winds to reduce the risk of bending. Cosmos are a popular choice for gardeners of all levels, as they come in a variety of varieties and are easy to care for. know more about october birth flower