The six-millionth and final tree of the Jubilee Woods project is to be planted today at a school in London.
The project was started to celebrate the Queen's Diamond Jubilee - 60 years of her being on the throne.
Millions of people including the Queen herself got involved in the project run by conservation charity Woodland Trust.
The project involved creating 400 woods for communities and wildlife to all enjoy.
Joe's been to one of these woods in Leicestershire to find out more...