The winner is announced at an awards ceremony in late March held in the EU Parliament, Brussels.
A total of 15 trees from as many countries are participating in this years contest.
Let us look at these trees and the extraordinary stories behind them.
Due to its age and historical significance the linden was declared a protected natural monument.
One of them was the Lime tree in Zadvori.
Only his tree has survived until today in the middle of the crossroad of five streets.
Raudone Castle Lime, Lithuania
This small-leaved lime grows near the castle of Raudone.
There is a metal rod in between two of its trunks at a height of about 3 meters.
The trunk of the lime branches up into several trunks that split into two or more parts.
The branches are like the hands of the tormented people, reaching up to 30 m height.
This oak, in the center reservation, was the only one left standing.
Close to the Belgian border, it became a landmark for many drivers on their journey.
This met with vocal opposition, as a result of which the tree was saved.
The tree is 150 years old and has a diameter of 23 meters.
It is still popular with lovers today and is the site of proposals.
It is 248 years old.
Within its lifetime the tree has seen many outstanding Russian people of art - painters, poets, actors.
Gogol, Turgenev, Repin, Vasnetsov, Levitan, Surikov and Polenov walked under its large spreading crown.
One of the most famous works by V.M.
Vasnetsov Oak Grove in Abramtsevo, painted in 1883, is still housed at the Tretyakov State Gallery.
Its 382 years of life make it unique in Europe.
In the early 17th century, an old beech had a statue of Mary that was worshipped.
When the statue mysteriously vanished in 1641, a chapel was built and the original tree cut down.
The faithful took pieces of the tree as relics and the wood was used to carve images of Mary.
The current tree stands in the proud tradition of its ancestor.
The church was home to the first local school, established in 1859.
They protect each other and have resisted the weather for more than two hundred years.
