Fit-out of the EUR6m development in Tuscany was by Stagecraft Display, which was responsible for all the internal and external retail display equipment.
Managing director Tom Davis said: "Graziano's award underlines the need for British-based companies to look further afield for new business. We initially made contact at Glee and then secured this major contract."
He added: "The central glass structure has made a massive impact, offering customers the largest selection of plants in the Tuscany region, including vegetables, trees, herbs, shrubs, herbaceous and bedding plants, and a fantastic display of house plants."
Stagecraft has now won a second Italian contract from Peraga SRL garden centre near Turin.