Chocolate Cosmos (Cosmos atrosanguineus) in the Cosmos Database

Common names:
Give a thumbs up Chocolate Cosmos
Give a thumbs up Cosmos

General Plant Information (Edit)
Plant Habit: Herb/Forb
Sun Requirements: Full Sun
Full Sun to Partial Shade
Plant Height: 30 inches
Plant Spread: 18 inches
Flowers: Showy
Flower Color: Russet
Other: dark red to a maroon dark browm
Flower Time: Summer
Late summer or early fall
Underground structures: Bulb
Uses: Cut Flower
Suitable as Annual
Wildlife Attractant: Bees
Propagation: Seeds: Sow in situ
Start indoors
Other info: Seed is impossible.
Propagation: Other methods: Division
Other: Tuberous root
Containers: Suitable in 1 gallon
Suitable in 3 gallon or larger
Needs excellent drainage in pots


The 2014 All Things Plants Top 25 Summer Bulbs and TubersThe 2014 All Things Plants Top 25 Summer Bulbs and Tubers
May 17, 2014

What a fun and diverse group of plants! Come on in and check out the report of the top 25 most active summer bulbs and tuber entries in our plants database. You will be surprised at some of the plants that made the list!

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Posted by jmorth (central Illinois) on Oct 30, 2011 10:05 PM

If grown in colder zone than listed, may be stored frost free over winter. Chocolate pudding color with a chocolate fragrance (actually a light vanillin scent, a scent often associated with chocolates).
Plant is extinct in the wild.(Mexico). Vegetative propagation from a single tuber in 1902 has maintained availability.
Quite the conversation piece..

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Plant Events from our members
jmorth On April 20, 2014 Obtained plant
Brent and Beckys
KelliW On March 4, 2019 Seeds germinated
1 germinated
KelliW On February 23, 2019 Seeds sown
indoors, seeds from chiltern 'black magic', sown in paper towel
» Post your own event for this plant

Discussion Threads about this plant
Thread Title Last Reply Replies
flopper? by Onewish1 Jul 2, 2012 12:45 AM 6
Chocolate Cosmos from seeds by ShawnSteve Mar 3, 2019 7:23 AM 5
Those newer Cosmos by ShawnSteve Jan 18, 2019 3:30 PM 42
Cosmos by geminitina Apr 18, 2018 3:44 PM 8
Cosmos hybrid by bonitin Jan 20, 2016 3:17 AM 4
What kind of a Cosmos? by bonitin Jan 9, 2016 9:48 AM 8
What seeds are you ordering this year? by luvsgrtdanes Feb 22, 2015 10:07 AM 78
Cosmos: Overwintering? by LysmachiaMoon Aug 21, 2014 7:04 AM 13
Summer bulb catalogs are arriving! by gemini_sage Jan 20, 2014 7:55 PM 11
Milner Gardens, British Columbia by dyzzypyxxy Feb 22, 2013 1:08 PM 22
Chocolate! Chocolate! Chocolate! - ORDERS - Kim by Kim Apr 22, 2012 6:59 PM 7

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