The simple answer to this question is that trees never stop growing. Trees are the largest tree of all is the Californian giant redwood which can grow nearly 100 m high and can have a trunk that is 11 metres thick. The oldest-known trees are bristle cone pine trees. They grow in the White Mountains in California, in the USA. Although they are quite small, some of these gnarled trees are more than 4,500 years old.
Environmental factors such as water availability, soil quality, and change in the weather can affect the growth of a tree. Water is pulled up from the roots to the top of the tree by their leaves.
Fact File: Bonsai trees are decorative miniature trees that were first developed in Japan. They grown in shallow dishes and the shoots and roots are carefully trimmed to stunt their growth. They can live for hundreds of years. |
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