"Let's hope we can find the Holy Grail with the judges," Domoney told Reuters on Monday beside his small show garden which is dominated by a replica of the glass pyramid outside the Louvre Museum in Paris that figures in the novel's opening.
"We have even hidden codes on the leaves of some of the plants which you can only find with an ultra-violet lamp. I think we all love this idea of hidden treasures and conspiracy theories," he said.
Chelsea, the world's most famous flower show, attracts exhibitors from as far afield as New Zealand, South Africa and Grenada to its elegant showgrounds on the banks of the River Thames for the four-day show.
Competition is fierce at The "Olympics of Gardening" which gives a major fillip to Britain's two billion pound gardening industry and is an essential first stop for summer socialites on the way to Royal Ascot, Wimbledon and Glyndebourne Opera.
Gardening is, in the words of designer Terence Conran, the "new rock 'n' roll for the young" with gardening experts now rivalling celebrity chefs on a plethora of television makeover shows.
But this summer this normally green and pleasant land full of devoted gardeners faces draconian water restrictions as the worst drought in 100 years threatens some areas of the country which now have less water per person than parts of Sudan.