Try something exotic with these huge blossoms, with tubular petals. A pretty mix of orange and yellow. Cosmos reach 3 to 5-feet in height, and won't fall over when planted close together as the feathery leaves 'lock together' and support each other. Blooms best in poor soil, and is drought tolerant. Happiest in full sun, they’ll grow in part shade without getting as tall. Attracts birds, bees and butterflies.