Chocolate Cosmos
Cosmos Atrosanguineus
Overview
Chocolate Cosmos (Cosmos atrosanguineus) is a herbaceous perennial boasting velvety dark-brown to maroon flowers up to 2 inches across. These bloom from mid-summer to fall, exuding a rich cocoa scent. Reaching 20-24 inches in height with a spread of 12-18 inches, it thrives in full sun and well-drained soil. Ideal for borders, it adds a decadent touch and attracts pollinators, yet is deer-resistant. USDA zones 7-10.
Sun Full, HalfWater LowZones 7–9Type AnnualClimate Subtropical

Culture
- Sun
- Full, Half
- Water
- Low
- USDA zones
- 7–9
Shape & size
Classification
- Type
- Annual
- Family
- Asteraceae
- Climate
- Subtropical
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Photographs by 10 contributors
- Rudolphous, CC BY-SA 4.0 · source
- Björn Appel, CC BY-SA 3.0 · source
- Maria Eklind, CC BY-SA 2.0 · source
- Rameshng, CC BY-SA 3.0 · source
- Sten, CC BY-SA 3.0 · source
- Kay Röllig, CC BY 3.0 · source
- Susanne Nilsson, CC BY-SA 2.0 · source
- Krzysztof Golik, CC BY-SA 4.0 · source
- Agnes Schulte, CC BY-SA 3.0 · source
- KENPEI, CC BY-SA 3.0 · source
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