The rose will be available exclusively for 18 months from Blue Diamond centres. Blue Diamond managing director Alan Roper said 2015 had been a "kind season" and could continue later into July.
Squires garden centre group was also exhibiting at the show. Managing director Dennis Espley said trade last week was more than 10 per cent up. He expects furniture to start selling well this week.
New Squires plant buyer Jeremy Hall is working on autumn added value plant ranges using his Next experience.
Meanwhile Neudorff, also exhibiting at the show, report a double of retail outlets to 1,050 stocking its organic controls.