Cosmos had been chosen by Fleuroselect as Europe’s plant of the year for 2016, who together with the RHS worked on the promotion and trialling of this genus.
For six weeks between August and September 2016, more than 85 cultivars of Cosmos were displayed at RHS Garden Wisley.
The poll has identified three cultivars of Cosmos as the public’s favourites, Cosmos ‘Cupcakes White’ which came in first place with 12 per cent of the vote, followed by C. ‘Cosmic Red’ with six per cent in second place and C. ‘Brightness Red’ with four per cent.
RHS trials development manager Mark Heath said: "Cosmos are among the nation’s favourite summer and autumn-flowering plants and the RHS thought it would be great working with Fleuroselect to celebrate the sheer variety of this wonderful plant and celebrate the product of many years of breeding and selection.
"The rich floral display at RHS Garden Wisley will offer garden visitors some fresh ideas for Cosmos showing how they would work best in their garden and inspire more people to try out cultivars they may not have been aware existed."
In 2017 will be the Fleuroselect year of the Zinnia.