Once the games were played, the land - owned by the Duke of Buccleuch - is to be left to return to its natural state.
Mr Coulthard said: “I’ve created a full-sized football pitch in the middle of a spruce forest.
“The reason I did was I had very good memories of playing football in a forest myself.
“I wanted to create games between football players who are diverse and come from all over the world to live in Scotland and create a diverse football team within a monoculture of trees.”
The project, which has taken two years to build, has been controversial but Mr Coulthard insisted it was a work of art and it was worth the money.
He said: “I have done something which has not been done before. I have done something new and celebratory and hopefully makes people ask questions about their environment and about society.
“I would definitely say it is worth the £460,000. It is going to be a great day.”
He added: “In the autumn of this year we will be replanting trees along the lines of the pitch that over the decades will grow into this big sculpture of a football pitch.
“And they are native trees so there is a nice combination of the non-native spruce and the native trees on the pitch.”