The Russian delegation followed a visit by the Dowager Empress of Russia to the first Chelsea show in 1913.
Karina Lazareva, the President of the Moscow Flower Show and Chelsea 2006 Gold medalist said: "The Moscow Flower Show follows the tradition of Chelsea Flower Show and strives to attract the leading Russian and international gardening specialists.
"This year we are delighted to welcome, Chris Beardshaw, one of the best known and loved British garden designers."
At this year's Moscow Flower Show, Beardshaw, who is showing a garden based on personal experience of arthritis for Arthritis Research UK this week at Chelsea, will be creating a show garden for children with neurological conditions and disorders.
After the show the garden will be moved to Moscow Children Hospital No18, which is the home to the Psychoneurological Clinic and Research Centre for Children, donated by the Moscow Flower Show itself. The show is held in Gorky Park between 16 and 23 June.