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Cosmos bipinnatus 'Cupcakes and Saucers'

Half-hardy Annual

What is Half-Hardy Annual?
A plant that completes its entire life cycle (growth, reproduction, death) in one season.
Can be grown outdoors but requires winter protection from frosts and temperatures below 0C.


100% (7 Reviews)
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Gorgeous blend of traditional cosmos and new 'Cupcakes'

Includes 'Cupcakes White', voted RHS garden visitors' favourite

Unique flower shape like no other


Height Up to 120cm (48in)
Spread Up to 60cm (24in)

Half-hardy Annual

cottage gardensalpine & rockerywildlife gardenscut flower garden

full sun

Sowing Months Flowering Months

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A beautiful and alluring mixture of traditional cosmos with the fabulous Cosmos ‘Cupcakes’ - a unique introduction from T&M’s own breeding programme with fused cup-shaped flowers. These sweet-coloured blooms put on a continuous display throughout the summer months and well into autumn, standing on tall, slender stems which sway in the breeze creating that gorgeous soft and floaty effect. Perfect for a sunny spot in any mixed planting scheme, not only will they look great in the garden and be beneficial to pollinators, but they make lovely cut flowers too. Despite their delicate looks, these plants are pretty tough and will stay standing in rain or a drought. Height: 1.2m (4’). Spread: 40cm (16").

1 packet (50 seeds) (KA9984)


Sow Cosmos seed from March to May at a depth of 3mm (1/8") in a good quality seed compost, and cover the seeds with a very fine sprinkling of vermiculite. Place the seed tray in a propagator at a temperature of 18-25C (64-77F) or seal it inside a polythene bag. Keep the soil damp but not wet. Do not exclude light as this aids germination which usually takes 7-15 days.

When seedlings are large enough to handle, transplant into 7cm (3") pots and grow them on in cooler conditions until large enough to plant outdoors. When Cosmos plants are well grown and all risk of frost has passed, acclimatise them to outdoor conditions over 7 to 10 days. Transplant outdoors in full sun in any moist, well drained soil at a distance of 45cm (18") apart. Pinch out the growing tip of each stem when transplanting to encourage stems to branch and produce more Cosmos flowers.

More Info
When growing Cosmos plants, water regularly until they are fully established. Deadhead faded Cosmos flowers regularly to encourage more blooms to be produced throughout the summer.

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £2.99.

Orders which include any other products will incur a delivery charge of £6.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £7.99 will apply - regardless of the number of items ordered.

Large items may incur a higher delivery charge - this will be displayed in your shopping basket.

Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.

For more information on how we send your plants please visit our Helpful Guide on plant sizes.


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