Typical for Cosmos are cup or bowl-shaped flowers in colorful shades of orange, pink, red, white, and maroon. They are ideal for a cutting garden, mixed border, or annual border. The copious flowers are set atop stiff stems and thread-like foliage.
Noteworthy CharacteristicsThese plants are found in scrub and meadows of the southern U.S. and Central America. They are loved by butterflies, and make excellent cut flowers. The plants are moderately drought and heat tolerant.
CareGrow in moderately fertile, moist but well-drained soil in full sun. Deadhead to prolong flowering, and also leave some seeds to self sow. In cold climates, lift the tubers of tender perennial species and store in a frost-free location.
PropagationSow seed in situ in late spring or at 61°F in mid-spring.
ProblemsStem canker, powdery mildew, Rhizoctonia stem rot, gray mold, aphids.