50 seeds 153030 £2.95 In stock
When in stock, please allow up to 5 working days for despatch.
5 seedlings 190195-5 £6.95 Delivery mid April
When in stock, please allow up to 4-6 weeks for despatch. 
10 seedlings 190195-10 £11.50 Delivery mid April
When in stock, please allow up to 4-6 weeks for despatch. 
5 jumbo seedlings 190195-SP05 £8.50 Delivery mid May
When in stock, please allow up to 4-6 weeks for despatch. 
More Details

A compact and container-perfect form of carmine cosmos, just like 'Dazzler' but one-third the size. You cannot go wrong with this easy to grow and very long-flowering variety. Use it as a front of border filler. Pick it for vases too.

Genus Cosmos
Group/Species bipinnatus
Variety Sonata Carmine
Type Half-Hardy Annual
Common Name Cosmos
Border Position Container Garden
Soil Type Broad Tolerance
Scent Unscented
Site Full Sun
Moisture Moist but Well-drained
Height 45cm (18in)
Spacing 30cm (12in)
Sowing, Seeds, Planting Sow under cover in mid spring and plant out after last frosts, or direct sow early May. Grow seedlings on in individual pots or modules until large enough to plant out. Gradually acclimatise to outdoor conditions for 7-10 days before transplanting into the garden after all risk of frost has passed.
Care Tips Pinch out tips at 15-20cm to encourage bushier plants. Stake and tie Cosmos plants if necessary during the growing season, water regularly and dead-head to prolong the flowering season.
Flowering July - 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.
Harvesting Flower production 6 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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Plant Delivery - When in stock, please allow up to 4-6 weeks for despatch. 

Seeds Delivery - When in stock, please allow up to 5 working days for despatch.

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

Cosmos bipinnatus 'Sonata Carmine' reviews

* * * * * Average based on 16 reviews

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Reviewed 20th April 2020 by Mrs Poynter

Healthy and strong plugplants

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Reviewed 31st July 2019 by Jackie

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Reviewed 31st July 2019 by Diana

good but not excellent. always v helpful on phone. tulips from last Autumn order although planted in November were a disaster. I got one decent flower!

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Reviewed 31st July 2019 by Geraldine

They along with other cosmos have been a little slow to flower .We are in July and they are just waking up

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Reviewed 31st July 2019 by Janetanne

Cosmos are usually so easy but these struggled when everything else was flourishing, they just seemed to wither and die with only a couple surviving.

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Reviewed 31st July 2019 by Janet

This is one of my star buys this year. Only 4 seeds germinated but those that grew had healthy lush growth with masses of beautiful large pink blooms. I have grown them in a large pot. Excellent.

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Reviewed 31st July 2019 by Sarah

Excellent. My new favourite. Bought for 3 years now and consistently beautiful.

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Reviewed 21st November 2018 by Philippa

Pretty pale yellow flowers and plenty of them over a long period with deadheading.

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Reviewed 7th November 2018 by David

They grew and flowered well

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Reviewed 20th September 2018 by Sheila

Beautiful clolour and still in flower now

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Reviewed 20th September 2018 by Julia

Lovely healthy plants, plenty of flower, very striking colour, still going strong ( late Sept.)

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Reviewed 14th September 2018 by Sue

Absolutely stunning colour. Covered in blooms all summer.

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Reviewed 13th September 2018 by Susan

The scabious arrived too late to be planted with the others but they were all lovely healthy plants and have given a great show

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Reviewed 3rd September 2018 by Sharon

Excellent plants producing beautiful blooms

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Reviewed 3rd September 2018 by Susan

Not done well this year-in pots, but very slow to flower and palnts still small-could be to do with hot summer.

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Reviewed 3rd September 2018 by Alan

The plug plants and seedlings are of the very best quality, and save you having to sow, prick out and grow on plants when you only want a few of each variety. They also eliminate the risk of possibly having to manage without certain strains that are either slow or erratic to germinate, as by the time those fail it's then often too late to resow.
The customer service is also second to none.