Turnover in June meanwhile was 10 per cent behind June 2013.
The number of units sold dropped by 10 per cent, with dianthus, balloon flowers and osteospermum suffering most.
There were strong increases however in the supply of garden hydrangeas at 38 per cent.
Sales of cut flowers and house plants were up 3.1 per cent, but down 17 per cent in May. Gerberas, eustomas and peonies did best while roses and chrysanthemums dropped in price.
Phalaenopsis turnover increased by seven per cent as prices dropped only a little.