Cosmos atrosanguineus 'Chocolate'

This dark, Bourneville chocolate cosmos is a must. It has a lovely velvet, crimson texture and amazing scent – of chocolate. More
5 young plants 229109-5 £12.50 In stock
When in stock, please allow up to 2 weeks for delivery.
10 young plants 229109-10 £22.95
Currently unavailable
Get notified when it's back!Close this
3 x 9cm plants 229109-3 £12.95
Currently unavailable
Get notified when it's back!Close this
More Details

Cosmos atrosanguineus 'Chocolate' is a gorgeous dark, Bourneville coloured cosmos, which is a definite must for your summer containers. It has a lovely velvet, crimson texture and amazing scent – of chocolate.

Genus Cosmos atrosanguineus
Variety Chocolate
Type Tender Perennial
Border Position Middle
Soil Type Neutral
Scent Scented
Site Full Sun
Moisture Moist but Well-drained
Height 90cm (36in)
Spacing 50cm (20in)
Care Tips Deadhead to encourage flowering and protect from the frosts with a good mulch, or horticultural fleece.
Flowering June - October
Vase Life Last 7-10 days, no conditioning needed. Pick fresh straight into water, just as the buds are about to bloom, and do not pick in the heat of the day. Deadhead the main blooms that are drooping and going over after about a week. Place out of direct sunlight.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  • Sow Under Cover/Plant Indoors
  • Direct Sow/Plant Outdoors
  • Flowers/Harvest
Advice & Videos
How to plant and grow cosmos

Even if you only have a tiny garden – or just some pots – you have to grow at least one cosmos. They are the lowest maintenance,...

Direct sowing seeds

Learn how to get great results when direct sowing hardy annual seeds.


Plant Delivery - When in stock, please allow up to 2 weeks for delivery.

Click here to find out more information about our delivery rates and times.

Write a Review

Cosmos atrosanguineus 'Chocolate' reviews

* * * - - Average based on 3 reviews
Write a Review
Review guidelines

Please let us know how you got on with growing our seeds, bulbs and plants, or using a piece of kit, or taking part on one of our courses or events.

We love hearing your garden success stories and sharing growing combos, advice and ideas with fellow enthusiasts. If you'd like to share a picture, we love receiving these on Facebook and Twitter.

Please note we may choose to use your review in other places within the website.

If you've had a problem with one of our products, and for the quickest response, please get in touch with our Customer Service team who can deal with returns and refunds, as well as answer any questions you may have.

poor quality

* - - - -

Reviewed 24th July 2018 by Clare Smith

These plants arrived completely torched. Have planted them out anyway but they have not survived. We've had really hot weather recently and they have not survived the shipping at all. But cannot believe that they left Sarah Raven in a decent condition because they are so badly decomposed.

Reply from the Sarah Raven Team:

"Thank you for taking time to review our site. We are sorry to hear that your plants did not arrive safely. Please do contact our customer service team at or by calling 0345 092 0283 and our team will assist you further.
Kind Regards, The Sarah Raven Team


Posted 1st August 2018

chocolate cosmos

* * * - -

Reviewed 8th July 2018 by Rose Taylor

Unfortunately, I am disappointed with the condition of these plants. They look as though they have been scorched by wind or sun. Hopefully, given some TLC they will recover.
I have bought many products from Sarah Raven and always been very pleased with my purchases. Shame about this one

Gorgeous colour

* * * * *

Reviewed 27th June 2018 by Alison Ellis

I love these. Their flowers are just the right height to be the ‘thriller’ in a pot, planted with red petunias and calibrachoa. A lovely colour and fragrance, and hopefully they will return next year.