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,...
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Pale Cosmos Collection
These will grow well in a sunny corner of your garden, and you will be able to pick hundreds of vases of them from July until at least October. More
| 100 seeds 030151 | £2.20 |
In stock
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When in stock, please allow up to 1 week for delivery.
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| 15 seedlings 510697-15 | £14.50 |
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| 30 seedlings 510697-30 | £26.50 |
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More Details
These will grow well in a sunny corner of your garden, and you will be able to pick hundreds of vasefuls from July until at least October.
Cosmos are stacked with nectar and pollen – bees and butterflies love them. They are also very easy to grow, and produce more bunches per square metre than any other plant I know.
Our seed packet contains a mix of the following varieties:- Cosmos bipinnatus 'Purity'
- Cosmos bipinnatus 'Sensation Pinkie'
- Cosmos bipinnatus 'Psyche Rose Picotee'
- Cosmos bipinnatus 'Gloria'
| Genus | Cosmos |
| Group/Species | bipinnatus |
| Type | Half-Hardy Annual |
| Border Position | Back, Middle |
| Soil Type | Neutral |
| Scent | Unscented |
| Site | Full Sun |
| Moisture | Moist but Well-drained, Well-drained |
| Height | 1.2m (3ft 11in) |
| Spacing | 45cm (18in) apart, 15 seedlings fills 5m² (ie 5m x 1m border, or 2.5m x 2m patch) |
| Sowing, Seeds, Planting | Sow under cover into modules or a seed tray mid spring, to plant out in May. Or direct sow in May. Clear area, dig over, rake soil to form a fine seed bed into which seeds will readily germinate. Scatter seeds evenly, rake over and water. |
| Care Tips | Pinch out to create bushier plants, and deadhead regularly to encourage beautiful flowers. |
| Flowering | July - October |
| Vase Life | 7-10 days, no conditioning needed. |
| 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
Advice & Videos
Cosmos summer flower arrangement
In this video, Sarah shows you how to put together a lovely roadside-inspired Cosmos 'Purity' flower arrangement.
Direct sowing seeds
Learn how to get great results when direct sowing hardy annual seeds.
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.
Pale Cosmos Collection reviews
Average based on 22 reviews
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Reviewed 16th August 2019 by Annette Well packaged good flowering plants |
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Reviewed 5th August 2019 by Christine |
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Reviewed 3rd August 2019 by Anita Always a winner. fantastic germination rate. |
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Reviewed 3rd August 2019 by Nancy I love the white dahlias, but dark red ones much too dark for my taste, and they don.t last long in water, unlike the white ones. |
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Reviewed 1st August 2019 by Mr Percy All good. Lovely colours and about 4-5ft high! |
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Reviewed 1st August 2019 by Caroline One of my all-time favourites. Growing strongly in a trough where nothing else will!! |
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Reviewed 31st July 2019 by Jane Lovely selection, in great condition when they arrived. Sad that the rabbits love them too! |
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Reviewed 31st July 2019 by Madeline It’s aLways easy ordering from Sarah Raven - cosmos have been brilliant |
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Reviewed 31st July 2019 by Colleen As seeds they were fine. Reasonable germination. |
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Reviewed 31st July 2019 by Katie very happy - all flourishing |
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Reviewed 31st July 2019 by Jane Nice plants well packed |
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Reviewed 31st July 2019 by Annette Well packaged good flowering plants |
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Reviewed 31st July 2019 by Jane |
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Reviewed 31st July 2019 by Karen The delivery was rather slow which meant they arrived while we were on holiday and we had to ask a neighbour to unpack and tend them until we returned. I planted them according to instructions and was hoping for an abundance of flowers but instead all I have is a row of straggly tall thin plants with not many flowers (in the case of the Cosmos) despite frequent watering. Several of the plants died off despite careful planting and regular feeding. |
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Reviewed 31st July 2019 by Pauline |
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Reviewed 31st July 2019 by Alison Quality seeds you can rely on to germinate and a really helpful website with videos and tips to get me started. I am new to growing Cosmos and am definitely hooked now! They go so well with other flowers in a vase and were easy to grow and maintain. Would definitely recommend. |
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Reviewed 31st July 2019 by Sara Quite good but not as prolific as last year with seeds from Unwins. |
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Reviewed 8th November 2018 by Yvonne My cosmos were the loveliest and tallest of all my friends...and I'm not a very good gardener! We had a family wedding in our garden and they added to the joy. I'll be ordering even more next year. |
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Reviewed 11th October 2018 by Colleen Massive ferny foliage and very few flowers all summer. Some white flowers now but really a disappointment for bedding purposes. I obviously chose the wrong type of plant and did not recognise the ferny fronds compared to the dark variety with more flowers answer leaves. Reply from the Sarah Raven Team:"Thank you for leaving your review. We are very sorry to hear of your disappointment with your Pale Cosmos Collection and have refunded you for them." Posted 7th November 2018 |
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Reviewed 3rd October 2018 by David |
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Reviewed 19th September 2018 by Ishbel The plants were so healthy and despite the hot weather they are still blooming beautifully |
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Reviewed 12th September 2018 by Rebecca Arrived safely packaged looking healthy. All grown to over 1 metre tall and bushy. Lots of flowers and buds still and we're mid September. |
