Transform your garden into a vibrant tapestry with Cosmos bipinnatus, commonly known as Common Cosmos or Garden Cosmos. Native to Mexico and the southern United States, this annual from the Asteraceae family thrives across zones 2 to 11, reaching an impressive height of 1 to 4 feet and spreading 2 to 3 feet. With a stunning bloom display from June until frost, its daisy-like flowers boast radiant red, pink, white petals with cheerful yellow centers.
Perfect for full sun locations, Cosmos flourishes in average, well-drained soil with moderate watering, showing remarkable tolerance to drought. Despite its low maintenance needs, this showy flower attracts butterflies and hummingbirds, adding life to any garden. Ideal for mixed beds, borders, cutting gardens, and wild gardens, cosmos self-seeds prolifically, effortlessly creating a naturalized look.
Plant cosmos seeds outdoors after the last frost or start them indoors 6-8 weeks earlier. Ensure sunlight at least half-day for optimal growth, and avoid overly fertile soil to prevent excessive foliage at the expense of blooms. While the plant is not invasive, it is known for aggressive self-seeding, a trait curbed by deadheading spent blooms.
Despite its robust nature, cosmos retains a delicate appearance, with finely cut, pinnatisect foliage enhancing its elegance. Shelter taller plants from strong winds, and encourage continued flowering by cutting plants back to 12-18 inches when seeds dry. Let your garden resonate with harmony and beauty as cosmos brings exuberant color and charm to your landscape.