"There is a tremendous opportunity for garden centres to inspire a new generation of gardeners and tempt existing, established gardeners to buy more if they can be much more innovative in the way they display a range of plants. The days of presenting plants in a simple A-Z order have passed," he said.
"Garden centres have an opportunity to be feeding people's passions and showing exactly what can be done as opposed to a simple catalogue."
Speaking to HW, Pasco praised Webbs of Wychbold's display gardens for putting plants in context and for having informed staff.
Stewarts Garden Centres retail director Bob Sawyer said: "If only these people would get down from their ivory towers and visit some proper garden centres and nurseries they would realise how much is being done by our industry to promote gardening. From gardening clubs to working with schools we are more proactive than ever in spreading the gospel that gardening is good for you."
Alton Garden Centre director Andy Bunker said Pasco did not work in the retail sector and "therefore cannot comment on what the customer either wants or indeed expects".
He added: "Imagine me writing about an article written by Pasco or such like commenting on how bad his article is - when I am neither a journalist or indeed fully appreciate what readers require."