His ‘flying’ garden, based on the Oscar-winning movie Avatar, will feature a bright pink flying pod suspended 82ft in the air from a crane.
Tim Rumball, editor of Amateur Gardening magazine, branded the garden a “gimmick” because health and safety rules prevent show visitors from enjoying the view from the pod, even though a number of celebrities will get the chance to do so.
Truly great designs should be accessible to everyone, he added.
“Diarmuid Gavin’s garden is a gimmick and has nothing to do with gardening in any real sense,” he said. “This is just about getting publicity from the TV cameras. Even if he were to take a few people up, why should 200 people out of 157,000 paying visitors get the chance to see it?