Banyan tree roots in Hong Kong.
There is a banyan tree that has been officially under arrest (and chained) for over 100 years. In 1898 an intoxicated British officer ordered the mess sergeant to arrest the tree as he thought that it was moving towards him. Since then, the tree has remained in chains.
Hitting a fruit tree can make it feel threatened, spurring it to produce more or larger fruit to distribute seeds before dying.
Trees talk to each other, except cedar trees, they’re antisocial.
Branches from a 3000 year old, still living, Greek olive tree were used to weave victors’ wreaths for the winners of the 2004 Athens Olympics and the 2008 Beijing Olympics.
Trees in forests have an underground communication and interaction system driven by fungal networks. “Mother trees” pass on information for best growth patterns and can divert nutrients to trees in need, and they are more likely to pass them on to trees of their own species.
The city of Melbourne gave email addresses to trees so locals could report problems, but they received thousands of love letters instead.
Some trees exhibit a phenomenon called “crown shyness” which prevents their branches and leaves from touching one another, forming a canopy with channel like gaps.
For the last 10+ years, 2 disabled men in China, one without arms and the other without sight, have been planting trees together and have so far planted more than 10,000.
Over 500 years ago, Leonardo da Vinci made an interesting observation about trees. He concluded that the total thickness of a tree’s branches is equal to the total thickness of the tree trunk. Trees across many species obey this rule. Explanations involve hydrological and structural theories.