Clay, who runs the £8m turnover online garden retail business with Mark Fane, said:
"They’re a bit patchy, a little bit half-hearted among the major retailers. They seem to be concentrating on getting their retail mix right. It’s difficult - not an easy thing to do to dispatch plants quickly and cost-effectively."
GCA chief executive Gillie Westwood said:
"Garden centres are going into it a bit half-heartedly. It is difficult because garden centres are such a physical shopping experience. But people used to order a lot by mail order from catalogues. It’s the carrier postage that is the problem."
Clay said he may move into bricks and mortar garden centres: "Certainly our open days are a huge success. People love coming into the nursery so that might be something we do. But at the moment we’re happy doing what we do."