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Asteraceae
Chocolate Cosmos
Cosmos atrosanguineus
Romance, mystery, sweetness.
- Family
- Asteraceae
- Genus
- Cosmos
- Native to
- Mexico
- Bloom season
- Summer, Fall
- Type
- Tender perennial
- Height
- 45–75 cm (18–30 in)
- Sunlight
- Full sun
- Soil
- Rich, well-drained
- Water
- Moderate
- Hardiness
- 7–11
- Lifespan
- Tender perennial
Did you know
- The blooms smell genuinely of chocolate—specifically of vanilla and cocoa—an aroma that intensifies in the afternoon heat to attract specialist pollinators.
- Considered extinct in the wild for nearly a century, every chocolate cosmos in cultivation today is a clone of a single sterile plant collected in Mexico in 1902.
- In 2022, a new fertile form was finally bred by Japanese horticulturalists, ending 120 years of botanical bachelor existence.
- The Latin 'atrosanguineus' means 'dark blood-red'—the velvety petals are nearly black in low light and produce a rare floral pigment called cyanidin.
- Despite its scent, the plant is not related to true chocolate (Theobroma cacao); the resemblance is pure aromatic coincidence and a botanical magic trick.
Color meanings
0
love
1
mystery
2
elegance