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20 seedlings 511696-20 £22.50 Delivery mid April
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40 seedlings 511696-40 £42.50 Delivery mid April
When in stock, please allow up to 4-6 weeks for despatch. 
More Details

There are few nicer ways of filling vases throughout summer and autumn than with a cloud of cosmos. As long as you don’t cut the plants right to the ground, but above a pair of leaves, more buds will form to fill next week’s vases and more for the week after that — and on and on it goes — your ever-filling vase.

This collection contains a mixed packet, or 5 or 10 seedlings of:
Group/Species bipinnatus
Type Half-Hardy Annual
Common Name Mexican Aster
Border Position Cutting Garden
Soil Type Broad Tolerance
Site Full Sun
Moisture Moist but Well-drained
Height 90cm (36in)
Spacing 45cm (18in)
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, 12-14 weeks from sowing.
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

We don't currently have additional advice on using / growing this particular product on our website, but if you do have a question that isn't answered on this page then please give us a call on 0345 092 0283 and we'll happily chat through any queries you may have, or email us at info@sarahraven.com. Please note all email replies are taking up to 10 working days.


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.

Cloud of Cosmos Mix reviews

* * * * * Average based on 2 reviews

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Reviewed 2nd February 2021 by Nikki

Great customer service, great quality of products, love the catalogues and watch videos giving gardening advise on Instagram

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Reviewed 2nd January 2021 by Glynis

For me. Can't have too many cosmos. I love them.