Bedding and alpines grower Lovania Nurseries will represent the UK having been nominated by the NFU following the family business's success in the 2012 Grower of the Year Awards.
Lovania, which achieved sales of £3.3m in 2011 from its new alpine business, won the "Grower of the Year: Ornamentals" category at the 2012 Grower of the Year Awards organised by Horticulture Week. NFU is a lead sponsor of the event.
The winners of the gold, silver and bronze roses will be revealed at a ceremony on 12 September in Venlo, the Netherlands.
The remaining finalists are Mansfield's Propagation Nursery from Australia, Belgium's Potplantenkwekerij Dirk Mermans, Canada's Sheridan Nurseries, Trapani Piante from Italy, Van den Berg Roses from The Netherlands, Taiwan's Taiwan Flora Seed International and Turkey's Fleurantalya.