Cosmos bipinnatus 'Psyche White'

Cosmos bipinnatus 'Psyche White' has showy semi-double flowers which are brilliant for arranging in vases large and small. More
50 seeds 030134 £1.95 In stock
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5 seedlings 510780-5 £5.95
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10 seedlings 510780-10 £9.95
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15 seedlings 510780-15 £14.95
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5 jumbo seedlings 510780-SP05 £7.95
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Or buy this as part of our Ultimate Cosmos Mix and White Cosmos Collection.

More Details

Cosmos bipinnatus 'Psyche White' has showy semi-double flowers which are brilliant for arranging in vases large and small.

Cosmos are stacked full of nectar and pollen, making them great for creating a wildlife friendly garden. They produce more bunches of flowers from a square metre than any other plant, so are brilliant for growing your own cut flowers.

Genus Cosmos
Group/Species bipinnatus
Variety Psyche White syn. Fizzy White
Type Half-Hardy Annual
Common Name Cosmos
Border Position Middle
Soil Type Chalky, Neutral
Scent Unscented
Site Full Sun
Moisture Moist but Well-drained, Well-drained
Height 1m (3ft 3in)
Spacing 40cm (16in)
Sowing, Seeds, Planting Sow under cover in mid spring and plant out after last frosts, or direct sow April-June.
Care Tips Pinch out tips at 15-20cm to encourage bushier plants. Needs staking.
Flowering July - October
Vase Life 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.
Harvesting Flower production: 4-5 months.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  • Sow Under Cover/Plant Indoors
  • Direct Sow/Plant Outdoors
  • Flowers/Harvest
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Delivery

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

Seeds Delivery - When in stock, please allow up to 1 week for delivery.

Next Day Delivery - Available for next day delivery if ordered before 12:30pm, Monday to Thursday. Applies to in stock seeds and hardware items only.

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

Cosmos bipinnatus 'Psyche White' reviews

* * * * - Average based on 53 reviews

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Reviewed 11th August 2019 by Susie

Service, as always was great, but now the plants are flowering, the Cosmos Xanthos are as expected, but the "Purity White" are definitely not! They are various pinks and one solitary white plant. They are strong and healthy but not quite what I had hoped for.

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Reviewed 2nd August 2019 by Annabel

I find this very difficult to get going. I sowed three different white cosmos this year, so don't know which came up and which didn't!

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Reviewed 1st August 2019 by Catherine

Ok but not white they are dark pink now they put

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Reviewed 1st August 2019 by Katie

They along with the other cosmos seedlings have been, and continue to be, wonderful. Though a few of the seedlings appear to have purple flowers it doesn't really matter, they look beautiful

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Reviewed 1st August 2019 by Susan

These are super strong and healthy plants but... they started to flower this week and they are not white but dark crimson!

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Reviewed 1st August 2019 by Madeline

Healthy and flowering beautifully.

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Reviewed 31st July 2019 by Angela

The same again.... I think I had better plants when I sowed the seeds myself.

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Reviewed 31st July 2019 by Philomena

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Reviewed 31st July 2019 by Elizabeth

Superb flowers giving god colour

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Reviewed 31st July 2019 by Philomena

Very happy with seeds and subsequent flowers. First pack of seeds only had 17 seeds but you sent me another pack within 2 days.

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Reviewed 31st July 2019 by Barrie

The flowers turned out to be pink

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Reviewed 31st July 2019 by Linda

I was sent pink and not such a great colour, so I'm very disappointed. However customer service handled it well, refunded without any unpleasantness and apologised and admitted I wasn't the only one! The 3 stars are for customer service.

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Reviewed 31st July 2019 by Sheila

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Reviewed 31st July 2019 by Dee

Excellent service and pleased with the plants

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Reviewed 31st July 2019 by Jeannette

Beautiful always delivers, great.

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Reviewed 31st July 2019 by Lorna

These were a replacement for seedlings that died on arrival. These plants were very healthy and thrived, but they are single and pale pink - not white and double as ordered.

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Reviewed 31st July 2019 by Gillian

good strong seedlings , potted on and then planted out but ONLY ONE WAS WHITE

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Reviewed 31st July 2019 by Debra

Another garden must have, Cosmos really flowers its socks off all summer, gave plants to friends as well, seeds were of a high quality and all germinated. Will definately grow again next year.

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Reviewed 31st July 2019 by Carolyn

Excellent service but no flowers on now full grown plants

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Reviewed 31st July 2019 by Mrs Barry

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Reviewed 31st July 2019 by David

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Reviewed 31st July 2019 by Christina

Grows well in any area of my small garden.

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Reviewed 22nd November 2018 by Kay

These were gorgeous. I loved this particular double plant. I did as above, then planted them in the garden and kept them well watered. Two failed fairly soon, then one, which I thought had established well, suddenly failed. Again, I don't know why. The two which succeeded were huge and amazing and carried on until October

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Reviewed 21st November 2018 by Alison

These took ages to flower despite our good summer weather. Once they started to flower they were very pretty but the flowers became smaller once the season progressed.

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Reviewed 16th November 2018 by Irana

A bit leggy but once staked held their own with other plants.

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Reviewed 15th November 2018 by Carol

Much smaller plants than in previous years but fabulous white.

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Reviewed 14th November 2018 by Moy

I ordered plants from several sources and Sarah Raven’s were far and away the best.

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Reviewed 14th November 2018 by Christine

Seedlings quickly developed into mature plant that flowered all summer until the first frost.

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Reviewed 8th November 2018 by James

much stronger stems and taller but a mix of double and single on the stems, but pleased with the amount of flowers produced, but the single dropped in the house compared to doubles

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Reviewed 8th November 2018 by Susan

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Reviewed 7th November 2018 by Lisbeth

They have not survived! Too much heat?

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Reviewed 7th November 2018 by Linda

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Reviewed 7th November 2018 by Madge

The service was first class and plants excellent. They are still flowering well and have made excellent cut flowers. Much more prolific than I expected

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Reviewed 7th November 2018 by Bernard

quality plants a good purchase

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Reviewed 19th September 2018 by Karen

Only 3 seedlings grew to full size and I was disappointed in their performance - flowers small and didn’t keep flowering despite deadheading. Don’t know if this is because they were speciality doubles, it will go back to the singles next time.

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Reviewed 19th September 2018 by David

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Reviewed 19th September 2018 by Maureen

very good service. Many thanks,

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Reviewed 19th September 2018 by Jayne

The service was excellant and I am delighted with my purchase.

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Reviewed 19th September 2018 by Rosalind

Lovely long lasting blooms, still flowering today.

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Reviewed 17th September 2018 by Malcolm

Arrived on time in perfect condition and are still flowering.

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Reviewed 13th September 2018 by Annette

All have not grown for the second time if buying

Reply from the Sarah Raven Team:

"Thank you for leaving your review. We are very sorry to hear of your disappointment with your Cosmos 'Psyche White' and have refunded you for them."

Posted 7th November 2018

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Reviewed 12th September 2018 by Claire

I received my cosmos late (I was informed that the original plants had gone astray in the post) I was sent another delivery of cosmos but had to plant them in my south-facing garden later than I would have liked. 3 out of the 4 cosmos started flowering at the end of August but the 4th plant has not started to flower yet even though the foliage is healthy. Most of the cosmos are producing lovely flowers but I am disappointed that they will not flower for long before the frosts get them.
(I’ve always been happy with my other plant purchases in the past)

Reply from the Sarah Raven Team:

"Thank you for your feedback. we are sorry to hear that your replacement seedlings have failed to flower and can only presume that the hot weather we experience has delayed them. We have made a note on your account, please contact our Customer Services team in the spring if you wish to try another set."

Posted 7th November 2018

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Reviewed 12th September 2018 by Michael

My previous comments apply

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Reviewed 12th September 2018 by Yvonne

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Reviewed 5th September 2018 by Miss Walker

These did not perform as well as the other Cosmos seedlings. I have had fewer flowers and they did not last very long

Reply from the Sarah Raven Team:

"Thank you for leaving your review. We are very sorry to hear of your disappointment with your Cosmos and have refunded you for them."

Posted 7th November 2018

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Reviewed 3rd September 2018 by Jayne

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Reviewed 3rd September 2018 by Lucy

They were excellent an are still looking great - my only problem is I had not realised they would get so big!!

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Reviewed 2nd September 2018 by Ann

The seedlings on arrival were very small and weak. I nurtured them under cover but only ended up with 4 mature blooming bushes - 2 red, 2 white. Halfway through the Summer, one of the bushes started to die back ( not through lack of watering) - I cut it back and it finally rallied and developed into a smaller bush. I was disappointed as I had anticipated filling a large flower bed with Summer colour

Reply from the Sarah Raven Team:

"Thank you for leaving your review. We are very sorry to hear of your disappointment with your cosmos seedlings and have refunded you for them."

Posted 7th November 2018

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Reviewed 30th August 2018 by MRS BOWN

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Reviewed 29th August 2018 by Mrs Dormer

Disappointed

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Reviewed 29th June 2018 by Janet Vitty

I was so looking forward to these flowers and ordered them specifically as I wanted WHITE flowers. So far out of the four plants that have flowered only ONE is white, the others are a pink, not a colour I wanted !

Magnificent

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Reviewed 13th August 2017 by Irene Spencer-Woods

These grew to about 5' tall and are still bearing masses of flowers. I did stake 4 of them but only with 3' canes. One had such a sturdy stem that it was fine without support. Absolutley buzzing with bees, wasps and hoverflies in the sun and they are able to access the pollen even though they are doubles. They make a stunning display.

Psyche white

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Reviewed 6th July 2017 by Victoria Venisse-Back

The Psyche white and Double click cranberry that I bought as plugs this year are both suffering from the flowers being too heavy for their stems.
Has anyone else had this problem? They were fine last year.

Reply from the Sarah Raven Team:

"Thank you for your feedback.

We are sorry to hear that you are not happy with your cosmos plugs, however are unaware of any other reports of this happening, did you pinch the plugs out as they were growing?
If you would like some horticultural advice, please do contact our Customer Service Team on 0345 092 0283 or at info@sarahraven.com and they will be happy to help if you wish to discuss further.

With Kind Regards,
The Sarah Raven Team"

Posted 17th July 2017