Please make sure JavaScript is enabled.

Before You Leave…

Download the GardenTags App today and join 100,000+ gardeners getting FREE plant identification, garden management and more!

no thanks

 
Chocolate Cosmos in the GardenTags plant encyclopedia

Cosmos atrosanguineus syn. Bidens atrosanguinea, Cosmos atrosanguineus 'Chocolate', Cosmos diversifolius atrosanguineus

 

Chocolate Cosmos

Cosmos are half-hardy annuals which flower in summer to early autumn until the first frosts. Brightly coloured, saucer shaped flowers are numerous and daisy-like and sit above deeply cut, fern-like foliage. This variety is has dark red/brown colour flowers and its scent is similar to chocolate. It can be treated as an annual, but it developes tuberous roots so can be treated as a perennial.

Contributed by @krishnahairdo

 
plant Features
  • Chocolate Cosmos likes full sun

    Full sun

  • Chocolate Cosmos likes very little water

    Very little water

  • Chocolate Cosmos is not frost hardy

    Not Frost hardy

  • Chocolate Cosmos likes free draining and fertile

    Free draining and fertile

 
plant information

Common name

Chocolate Cosmos

Latin name

Cosmos atrosanguineus syn. Bidens atrosanguinea, Cosmos atrosanguineus 'Chocolate', Cosmos diversifolius atrosanguineus

type

Tuberous Perennial

family

Asteraceae

ph

6.6 - 7.8 Acid - Neutral

  • Light

    Chocolate Cosmos likes full sun

    Full sun

  • Frost

    Chocolate Cosmos is not frost hardy

    Not Frost hardy

  • Soil

    Chocolate Cosmos likes free draining and fertile

    Free draining and fertile

  • Water

    Chocolate Cosmos likes very little water

    Very little water

Plant & bloom calendar

  •  
    Best time to plant
  •  
    When the plant will bloom

full grown dimensions

The size of a fully grown Chocolate Cosmos is 0.30meters x 0.40meters 0.30 M 0.40 M

Cosmos atrosanguineus syn. Bidens atrosanguinea, Cosmos atrosanguineus 'Chocolate', Cosmos diversifolius atrosanguineus

Cosmos are half-hardy annuals which flower in summer to early autumn until the first frosts. Brightly coloured, saucer shaped flowers are numerous and daisy-like and sit above deeply cut, fern-like foliage. This variety is has dark red/brown colour flowers and its scent is similar to chocolate. It can be treated as an annual, but it developes tuberous roots so can be treated as a perennial.


Flowering

From Mid Summer TO Mid Autumn

Flowering season is from mid summer to the first frosts

 

Planting

From Late Spring TO Early Summer

Plants can be put into the flowering position as soon as all frosts have gone

 

Propagating by seed

From Early Spring TO Mid Spring

Seeds can be sown in trays of compost in early Spring, to be put out when all frosts have gone

 
Subscribe to GardenTags Premium to get personalised planting tasks and more for your entire plant collection
 
Gardeners who are growing this plant