This Cosmos really is heaven sent. An absolute head turner in the flower border as, not only does the pure snow-white flowers look like a sea of stars, but the sheer number of pollinations who are drawn to it will have you looking for your bee & butterfly spotters guide immediately. 
 
Needs gentle warmth to germinate. When large enough transfer to individual pots & when matured, transfers to the final location once all rick of frost has pasted. Pinch out above the 3 set of leaves to encourage a bushier plant (Results in more blooms) & additionally deadhead regularly to promote more flowers. By doing this ours flower from June to right the way through to November.