Join Our Gardening Club

Cosmos bipinnatus 'Sweet Sixteen'

Eye-catching soft blushed pink blooms

An intriguing cut flower

Ideal for adding height and interest to borders

This product is produced and supplied in association with Thompson & Morgan

Want to get notified when back in stock?

Loading...
Description Sowing More Info Delivery Reviews

Eye-catching soft blushed pink blooms, each have distinct darker pink picotee edges and an attractive double frill in the centre of each flower. Cosmos Sweet Sixteen is ideal for adding height and interest to borders as well as making an intriguing cut flower.


1 Packet (70 Seeds) (24217)

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") potsand 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.

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.

You May Also Like

Cosmos bipinnatus 'Sensation Mixed'

29 Reviews
Quick Buy

2 Options From£2.99

Cosmos sulphureus 'Brightness Mixed'

24 Reviews
Quick Buy

Just£2.99

Cosmos bipinnatus 'Lemonade™'

30 Reviews
Quick Buy

Just£2.49

Cosmos bipinnatus 'Gazebo Mixed'

15 Reviews
Quick Buy

Just£2.99

Cosmos bipinnatus 'Psyche White'

22 Reviews
Quick Buy

Just£1.00

Cosmos bipinnatus 'Apricot Lemonade'

4 Reviews
Quick Buy

Just£2.79

Cosmos bipinnatus 'Purity'

17 Reviews
Quick Buy

Just£2.99

Cosmos bipinnatus 'Cupcakes and Saucers'

4 Reviews
Quick Buy

Just£2.29

Cosmos bipinnatus 'Xanthos'

36 Reviews
Quick Buy

2 Options From£1.00

Cosmos bipinnatus 'Rubenza'

11 Reviews
Quick Buy

Just£2.87

Cosmos bipinnatus 'Cupcakes'

18 Reviews
Quick Buy

Just£2.29

Cosmos bipinnatus 'Double Click Rose Bonbon'

10 Reviews
Quick Buy

2 Options From£2.99

Sign up to the Van Meuwen Gardener's Club for Special Offers

JOIN NOW