General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Annual
Sun Requirements: Full Sun
Water Preferences: Mesic
Plant Height: 24 inches
Plant Spread: 16 inches
Flowers: Showy
Flower Color: Yellow
Bloom Size: 2"-3"
Flower Time: Summer
Late summer or early fall
Uses: Cut Flower
Will Naturalize
Wildlife Attractant: Bees
Birds
Butterflies
Propagation: Seeds: Provide light
Needs specific temperature: 68-77degrees F recommended
Days to germinate: 7 - 14 days
Depth to plant seed: Surface sow, cover with very thin sprinkling of fine vermiculite
Sow in situ
Start indoors
Propagation: Other methods: Division
Pollinators: Moths and Butterflies
Bumblebees
Bees
Containers: Suitable in 3 gallon or larger
Awards and Recognitions: Other: Fleuroselect Award (2016)

Image
Common names
  • Cosmos
  • Common Cosmos

Photo Gallery
Location: all photos from my garden
Date: 2016-05-23
Location: Home
Date: 2022-9-15
Plants are in full bloom now.
Location: My garden in Albuquerque, NM Zone 7b
Date: 2021-07-04
Uncluttered lines and delicate hue make this a lovely bloom
Location: Wallsend, Tyne and Wear, England
Date: 2022-07-12
Cosmos bipinnatus 'Xanthos'
Location: all photos from my garden
Date: 2019-08-08
Location: Pennsylvania
Date: 2020-09-06
Cosmos bipinnatus 'Xanthos'
Location: Ann Arbor, Michigan
Date: 2020-08-12
Cosmos bipinnatus ‘Xanthos’ 
Location: Wallington Hall, Northumberland UK
Date: 2016-10-06
Location: Wallington Hall, Northumberland UK
Date: 2016-10-06
Location: central Illinois
Date: 2016-03-17
3 days
Location: central Illinois
Date: 2016-03-17

Photo courtesy of Annie's Annuals and Perennials
  • Uploaded by Joy

Photo courtesy of Annie's Annuals and Perennials
  • Uploaded by Joy
Location: Yorkville, Illinois zone 5b
Date: April 18, 2020
Xanthos Cosmos 3 week plant

Photo courtesy of Select Seeds.
  • Uploaded by Joy

Photo Courtesy of Select Seeds. Used with permission.
  • Uploaded by Joy

Photo Courtesy of Baker Creek Heirloom Seeds. Used with permissio
  • Uploaded by Joy
Location: central Illinois
Date: 2016-01-31
Location: Yorkville, Illinois zone 5b
Date: 2020-04-18
Seedling Xanthos Cosmos with seed husk attached
Location: Washington
Date: 2016-07-25

Photo courtesy of Annie's Annuals and Perennials

Photo courtesy of Annie's Annuals and Perennials
Location: Ann Arbor, Michigan
Date: 2020-11-23
Cosmos Xanthos seed
Plant Events from our members
jmorth On April 13, 2016 Plant Ended (Removed, Died, Discarded, etc)
?
jmorth On March 17, 2016 Seeds germinated
jmorth On March 17, 2016 Plant emerged
jmorth On March 14, 2016 Seeds sown
From Select Seeds
ShawnSteve On July 5, 2022 Bloomed
I've a couple of small, blooms, so far. While the plants are still quite small.
Though, since I'd sown them together with 'Lemonsde' I can't quite yet be absolutely certain, they are 'Xanthos', or else 'Lemonade' as they'd been sown so closely, together.
ShawnSteve On June 4, 2022 Miscellaneous Event
Have produced more than a single set of true leaves, by now.
ShawnSteve On May 12, 2022 Seeds sown
In same pot, with Austin Rose. (Ex. Baker Creek.)
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