Scientific Name
Other Names
Life Form
Family
Ornamental- Popular ornamental flower for gardens, attracting butterflies and other pollinators. Medicine- The rhizomes are used in the treatment of malaria. The traditional medicinal applications in China of Cosmos extracts are shown to inhibit bacteria, fungi, and viruses and to have potent anti-inflammatory effects in laboratory animal experiments with induced gastric ulcer, liver inflammation, or arthritis-type swelling. Dye- The flower heads of this species were major sources of yellow to orange color to dye wool.
Mexico to Central America
Thrives in temperate climates. Prefers full sun and well-drained soil. Often seen in meadows, fields, and along roadsides.
It is annual herb though may self-sow and reappear for several years. Grows in an upright bushy form reaching 30-210 cm in height.
Stem is erect, branching with a smooth or slightly hairy surface.
Leaves are oppositely arranged, pinnately divided with thread-like leaflets. Leaves are green and finely textured, reaching up to 10 cm long.
Flowers are Daisy-like flower heads in shades of yellow, orange, and red, depending on the variety. Ray florets (outer ring) are flat and strap-shaped, with the named colors. Disc florets (center) are small, yellow, and inconspicuous. Flower heads are 3-8 cm in diameter and borne on single stalks.
Fruit is dry, single-seeded with a pappus (hair-like structure) that aids wind dispersal.
Flowering: June-September.