Forestry in the United Kingdom
The United Kingdom, being in the British Isles, is ideal for tree growth, thanks to its mild winters, plentiful rainfall, fertile soil and hill-sheltered topography. In the absence of people, much of Great Britain would be covered with mature oaks as well as savannah-type of plains, except for Scotland.
Source: Wikipedia — Forestry in the United Kingdom (CC BY-SA 4.0)