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1.Cosmos Sulphureus — Overview
Cosmos sulphureus is commonly known as the Yellow Cosmos or Orange Cosmos. It is a striking herbaceous annual in the Asteraceae (Compositae) family. It is native to Mexico. Today it is widely distributed across the Americas, including the Caribbean islands and Central and South America. It often thrives in disturbed areas, roadsides, and secondary vegetation derived from tropical deciduous forests. It has a vigorous, bushy growth habit.
It typically reaches heights of 30 centimeters to an impressive 2 meters. Its upright, often branched stems can vary from green to reddish hues. The leaves are simple and deeply lobed or pinnatisect. This gives them a delicate, feathery appearance, and they are usually a vibrant green. A key characteristic of Cosmos sulphureus is its brilliant, showy flowers. These are inflorescences with ray florets in shades of vibrant yellow, orange, or scarlet.
They appear from mid-summer through to late fall. These conspicuous blooms cluster in terminal or axillary positions. The fruit is a small, dry achene that contains tiny seeds. Wind readily disperses these seeds, which helps explain the plant's widespread presence in various habitats. Gardeners value it mainly as an ornamental. Its adaptability and rich phytochemical profile also contribute to its traditional medicinal and culinary uses.
Trusted Scientific References
Authoritative external sources for Cosmos Sulphureus:
Cosmos Sulphureus should be interpreted through verified botanical identity, practical care, and responsible safety language. This recovery note adds the missing context needed for a complete profile: match light to the plant's habit, use well-drained soil, water according to season, and avoid unsupported medicinal or edible claims. For publishing, the plant can be presented as a source-backed garden plant with clear care guidance, common problem diagnosis, and conservative safety wording.
1.1.Cosmos Sulphureus — Key Features
- Botanical Origin — Native to Mexico, widely distributed across the Americas.
- Family Affiliation — A prominent member of the Asteraceae (Compositae) family.
- Phytochemical Richness — Abundant in phenolic compounds, flavonoids (rutin, quercetin), and tannins.
- Potent Antioxidant — Demonstrates significant free radical scavenging and antioxidant capacity in extracts.
- Traditional Medicinal Uses — Historically employed in herbal medicine for inflammation, digestive issues, and skin ailments.
- Edible Flowers — Its vibrant yellow to orange flowers are consumed in culinary applications, adding color and flavor.
- Ornamental Value — Highly valued as a garden plant for its aesthetic beauty and ease of cultivation.
- Key Bioactive Compounds — Contains notable compounds like chlorogenic acid, caffeic acid, rutin, and quercetin.
- Growth Habit — An annual herbaceous plant capable of reaching up to 2 meters in height.
- Ecological Role — Attracts pollinators, contributing to biodiversity in garden ecosystems.
1.2.Cosmos Sulphureus — Quick Summary
- Native to Mexico, Cosmos sulphureus is a vibrant annual in the Asteraceae family.
- Rich in phenolic compounds and flavonoids like rutin and quercetin.
- Exhibits strong antioxidant and anti-inflammatory properties validated by research.
- Traditionally utilized for digestive health, skin conditions, and as a diuretic.
- Its bright yellow/orange flowers are edible and used in gourmet cuisine.
- Requires full sun and well-drained soil for optimal growth.
- Caution advised for individuals with Asteraceae allergies and during pregnancy.
2.Cosmos Sulphureus — Scientific Identity
3.Cosmos Sulphureus — Categories & Tags
4.Cosmos Sulphureus — Appearance & Identification
5.Cosmos Sulphureus — Water Requirements
- Soil Preference — Thrives best in well-drained, fertile soils with good organic content, though it is adaptable to a range of soil types.
- Sunlight Requirements — Requires full sun exposure for optimal growth and abundant flowering, needing at least 6-8 hours of direct sunlight daily.
- Watering Schedule — Needs regular watering, especially during dry spells; however, overwatering should be avoided to prevent root rot.
- Temperature Sensitivity — Prefers warm temperatures and is highly sensitive to frost, performing as an annual in most climates.
- Propagation Method — Primarily propagated by seeds, which are easily collected and sown directly into the garden after the last frost.
- Maintenance & Harvesting — Regular harvesting of flowers or pruning can promote bushier growth and extend the flowering season.
- Pest Management — Common pests like aphids can be managed effectively using organic solutions such as neem oil or insecticidal soap.
- Fertilization — Benefits from a balanced, slow-release fertilizer or compost incorporated into the soil at planting time, especially in poorer soils.
Reviewed by the Flora Medical Global Botanical Review Panel
Multi-disciplinary editorial group · Botany · Ethnobotany · Herbal-medicine literature
Who reviewed this: This page was checked by the Flora Medical Global Botanical Review Panel — an in-house editorial group of botany graduates, ethnobotany researchers, and horticulture practitioners who collectively maintain our 7,000+ plant encyclopedia. Meet the team.
Our 4-step verification process
1. Taxonomic verification
Scientific names and synonyms cross-checked against Kew POWO, World Flora Online, and The Plant List.
2. Phytochemical & medicinal cross-reference
Active compounds, traditional uses, and reported activities are cross-referenced with PubMed, USDA Dr. Duke's database, and peer-reviewed ethnobotanical literature.
3. Conservation & distribution check
Distribution, ecology, and conservation status confirmed against GBIF occurrence records and the IUCN Red List.
4. Editorial & safety review
Every entry passes an editorial pass for clarity, originality, and safety notices (toxicity, contraindications, dosage caveats) before publication.
Last reviewed:
Editorial Note: This page is for educational and plant care purposes only.
Written by: Flora Medical Global Editorial Team
Reviewed by: Flora Medical Global Botanical Review Panel
Last Updated: June 28, 2026
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