The initiative was launched in 2008 by the Bransford Webbs Plant Company and plants used in the 2010 campaign included Primula 'Champagne', Dianthus 'Passion', Veronica 'Inspires Blue and Pink', Dahlia 'Chic Red' and Echinacea 'Mistral'.
Garden centres running the campaign, which consisted of larger kit sizes and marketing material such as large point-of-sale boards and table talkers, sold on average three times more plants than centres running normal promotions.
Sales director Adrian Marskell said: "Campaign Plants has been a real success story, bringing some real impact and colour to plant areas while achieving a higher pound per metre squared return than other promotions."
He continued: "2011 is the fourth year we have run Campaign Plants and interest is as high as ever with new centres coming on board all the time." The 2011 campaign will start in February with Primula 'Champagne'.