C. sulphureus. The intense dazzling yellow to reddish orange single flowers on this striking species Cosmos attracts bumblebees. birds. and beneficial insects. and looks terrific in a cut flower bouquet. Plant Bright Lights cosmos seeds in full sun. It's easy to grow in a variety of soils - tend towards the dry side. Its natural drought tolerance makes it a good candidate for xeriscaping. Plants grow to about 1m (3') tall. for the middle or front of a mixed border. Mix Bright Lights with dark blue and purple flowers for eye-catching contrast.