They have ten days to build their garden and will join 13 other designers from around the world creating gardens for the Flowers, Greenery and A Prayer for Peace and Restoration show, which opens to the public at the end of the month.
"The world’s most extraordinary world cup opens to the public on 29 September in south-east Japan," said a spokeswoman for the show at Huis Ten Bosch. "We want to showcase work by the best designers and send out a global message of peace."
All competitors, including David Davison, Gabino Carballo, Karen Stefonick as well as James Basson, Kazuyuki Ishihara and Jihae Hwang were at Chelsea this year and are in Japan by invitation only. All have been given the same, tight budgets.
The gardens will be judged on 28 September by a panel including RHS head of shows’ Bob Sweet. Medals will be awarded at a televised, Oscar style, awards ceremony and best in show will win £4,000.
Huis Ten Bosch, a large replica 17th-century Dutch theme park close to Nagasaki, is a key driver for the overall theme, gardens for world peace’, which was conceived by garden designer Kazuyuki Ishihara.
Last year England’s hopes of world cup glory were dashed by Australian Jim Fogarty, who scooped gold and best in show, a title won by Andy Sturgeon in the first year of the competition in 2010.