Start off in a seed tray indoors and plant out in borders. Fill a seed tray with good, free-draining, damp, seed compost. Sow seed on the surface of the compost and cover with a very fine sprinkling of dry vermiculite or finely sieved compost. Place the seed and tray in a propagator or seal inside a polythene bag and keep at around 20-25C (68-77F) until the seeds germinate. This will take about 7-14 days. Don't exclude light as this helps germination.
When the seedlings are large enough to handle, transplant them individually into 7.5cm (3”) pots or multi-cell trays. Before planting out, acclimatise the plants to cooler conditions by putting them outside for a few hours a day for a few weeks. Plant out when all risk of frost has gone about 45cm (18”) apart.
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.
Despatch: Within 24 hours applies to orders placed online from Sunday to Thursday. Orders placed online on Friday or Saturday will be despatched on Monday. Please note that for Bank Holiday weekends, orders placed Friday to Sunday will be despatched on Tuesday.
Plants, bulbs, corms, tubers, shrubs, trees, potatoes etc are delivered at the appropriate time for planting and will be stated on the product page or in your order acknowledgement page and email.
Orders for packets of seed incur a P&P charge of £1.95.
Orders which include any other products will incur a P&P charge of £4.95.
Where an order includes both packets of seeds and other products a maximum P&P charge of £6.90 will apply - regardless of the number of items ordered.
Please see our Delivery / P&P page for further details and details of any surcharges that may apply to certain destinations.
By Yoshiko Harrop 27-10-2016
Every year I grow at least a couple of varieties of Cosmos.
This one is truly to the description - very early flowering(found flower buds within 4 weeks of sowing), profusion of flowers(beautiful lemon yellow), branching well, flowers very long time if deadheaded, compact habit on dwarf plant(spread 40-50cm, height60cm), self supporting.
The only reason I could not give 5 stars was germinating rate. Compared with others, it was not brilliant. I got 11 plants out of 30 seeds(half germinated but 4 were not good plants.) But once germinated, they were well worth growing, as they are very good permormers!
Thank you very much for taking the time to post a review. I am glad that you have been happy with the performance with the seeds that did germinate. If you could please contact our Customer Care Department at firstname.lastname@example.org, one of our agents will be more than happy to help regarding the germination rate.
My new favourite Cosmos
By M Williams 23-08-2016
I've had great success with this new Cosmos. I did nothing special except I did pinch out the growing tip when they were 6 ins high. This produced a bushy plant with lots of lovely creamy buttery yellow flowers. Most of the seed germinated and I planted them with Coreopsis Incredible dwarf mixed for a nice contrast. I usually plant Cosmos Sonata but this new yellow variety of Cosmos is my new favourite as it looks good with roses and softens the look of the border as it is not too tall.
Thank you very much for your review. I am glad that you have been happy with your purchase. I hope we can continue to be of service to you in the future.
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