Chocolate Cosmos

Chocolate cosmos is a delicacy for the eyes.

  • Chocolate cosmos are a species of perennial flowering plant, that originated in Mexico.
  • ‘Chocolate cosmos’ is also known as ‘black cosmos’ and was once known as ‘black biden’.
  • The scientific name of chocolate cosmos is Cosmos atrosanguineus, formerly Bidens atrosanguineus, and it is from the family Asteraceae, the family of daisies.
  • Chocolate cosmos generally grow to be around 40 to 75 centimetres (1.3 to 2.5 feet) in height.
  • Chocolate cosmos are believed to be extinct in the wild, while many specimens today are clones of a non-fertile specimen, so those will not produce fertile seed.
Chocolate Cosmos, Trivia, Ten Random Facts, Red, Flower, Brown, Beautiful, Lone,
A Chocolate Cosmos
Image courtesy of Amanda Slater/Flickr
  • The blooms of chocolate cosmos plants are a deep brown to maroon colour, and they have a fragrance reminiscent of chocolate.
  • Chocolate cosmos grow best in sunny or mostly sunny conditions, and the plants grow from tubers that enable them to be divided.
  • Chocolate cosmos plants prefer warm climates if they are to be grown all year round, and they typically bloom during summer months and into early autumn.
  • Seed merchant, William Thompson from Ipswich in England, was the first known person to cultivate a chocolate cosmos plant, doing so in 1835, and the plant was described by English botanist, Joseph Hooker, shortly after, who obtained a specimen from Thompson.
  • Chocolate cosmos are commonly grown in gardens for decorative purposes or as cut flowers.
Cosmos, 2016, Pacific Bulb Society,
Cosmos atrosanguineus, 2016, Heritage Perennials,
Cosmos atrosanguineus, 2016, Wikipedia,
Schneider A, Caring for Chocolate Cosmos Plants: Growing Chocolate Cosmos Flowers, 2016, Gardening Know How,


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