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sulphur cosmos
Scientific Name: Cosmos sulphureus
Family: Asteraceae
Category: Dicot
Growth: Forb/herb
Duration: Annual
Other Names:
Cosmos sulphureus: A Sunny Addition to Your Garden
Cosmos sulphureus, commonly known as Sulphur Cosmos or Yellow Cosmos (and sometimes Golden Cosmos or Klondike Cosmos), is a vibrant annual flower that can add a splash of orange and yellow to your garden from summer to fall.
Taxonomy and Nomenclature
- Scientific Name: Cosmos sulphureus Cav.
- Common Names: Sulphur Cosmos, Yellow Cosmos, Golden Cosmos, Klondike Cosmos
- Family: Asteraceae
Distribution and Habitat
This species is native to Mexico, Central America, and northern South America. It has also been naturalized and introduced around the world, including locations like Connecticut and Reunion Island.
Morphological Characteristics and Growth Habits
- Cosmos sulphureus is an upright, hairy-stemmed annual plant.
- It features daisy-like flowers with yellow discs and yellow rays.
- Plants can reach a height of 3 to 4 feet (approximately 75-100 cm).
- Some dwarf varieties are available for smaller spaces.
Ecological Role
- The flowers are known to attract butterflies and bees, making them a valuable addition to pollinator gardens.
Interactions with Other Organisms
- Butterflies, including Monarchs, are frequently observed visiting the flowers.
Resources and Further Information
- USDA, NRCS. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.
- Dave's Garden provides a community forum for sharing gardening tips and ideas.
- Bugwood.org provides access to photos of the species.
- Discover Life offers comprehensive information on the biology, natural history, ecology, and distribution of Cosmos sulphureus.