40 seedlings 510816-40 £34.95 Delivery early April
[?]
When in stock, please allow up to 4 working days for despatch.
100 seeds 030160 £2.50 In stock
[?]
Items will be despatched in 2-3 working days.
20 seedlings 510816-20 £18.50 Delivery early April
[?]
When in stock, please allow up to 4 working days for despatch.
More Details

Our bestselling cosmos in a fabulous mix.

This collection includes:

Genus Cosmos bipinnatus
Type Half-Hardy Annual
Border Position Middle
Soil Type Chalky, Neutral
Scent Unscented
Site Full Sun
Moisture Well-drained, Moist but Well-drained
Height 90-100cm (36-39in)
Spacing 40cm (16in) apart, 20 seedlings fills 6m² (ie 6m x 1m border, or 3m x 2m patch)
Sowing, Seeds, Planting Sow under cover March-April at about 3mm deep in good compost. Transplant out after first frosts, and water in until fully established or direct sow April-June.
Care Tips Pinch out tips to encourage bushier plants. This is a perfect variety for growing in container pots.
Flowering June - November, 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
Advice & Videos
A year in my cutting garden - May

I have started to take a monthly look at the goings on in my Cutting Garden...

Delivery

Plant Delivery - When in stock, please allow up to 4 working days for despatch.

Seeds Delivery - Items will be despatched in 2-3 working days.

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

Write a Review

Ultimate Cosmos Mix reviews

* * * * * Average based on 1 review
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 sarahraven.com 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.

Fabulous strong plants

* * * * *

Reviewed 2nd June 2016 by Sue Tu!loch

I sowed these seeds 17 April, in an unheated greenhouse as I had been away (but in any case spring was so cold this year.) From one packet of 100 seeds today on 1 June I have 96 strong healthy plants that are already 20cm - 25cm tall. I a!ways buy Sarah Raven seeds as the germination rate is so good, giving me lots of plants to share with family and friends. Looking forward to masses of flowers in the summer.