The event, organised by FLORINT, the international organisation of florists, will pit hopefuls from 20 countries against one another in a bid to claim the crown of Eurofleurs champion.
British Floral Association events director Denis Van Wonderen said: "Winning this competition is the highest accolade that a young florist can achieve, so the rivalry will no doubt be intense. However, Eurofleurs is all about bringing together the international floristry community to grow and share ideas, so it's an amazing opportunity for everyone taking part."
Now in its third edition, the quadrennial event is open to florists under the age of 25, each of whom must first win their national trials.
Representing Britain will be Joe Massie from Liverpool who has already won five national competitions, including RHS Chelsea Young Florist of the Year.
Each competitor will face five tasks around the concept of "art at Tatton Park."
The event will take place in the British Florist Association Marquee.
It will be judged by the UK floristry judges guild, plus international judges from FLORINT including representatives from Great Britain, Germany, Poland, Croatia and Italy.
RHS show manager for Tatton, Kris Hulewicz added: "Eurofleurs 2010 will be one of the big showpieces of the RHS Show Tatton Park 2010. This event is the world cup of floristry and the standard is always thrilling, so it's wonderful that visitors will get the opportunity to experience it first hand and soak up the atmosphere of excitement and friendly rivalry."
For more information visit www.rhs.org.uk/tatton.