New Covent Garden Flower Market is to run a British Flowers Week from 16-20 June.
The week-long event is a "celebration of the wealth and variety of the Best of British cut flowers and foliage, championed by New Covent Garden Flower Market".
The first British Flowers Week in June 2013 had a social media campaign that reached 200,000 people via Twitter at #BritishFlowersWeek, facebook and www.newcoventgardenmarket.com
Top London florists will create designs and florists nationwide can send in photos of their work for a competition.
British Flowers Week will see New Covent Garden Flower Market release the Flower Market’s first British Seasonal Chart.
Interflora drew criticism for claiming half a Valentine's Day bouquet was British last month.