On average, trees in the shade or in a forest grow 1.5cm per year. In full light they can grow 2.5cms. However, all trees grow at different rates and other factors will affect this rate, such as soil type, access to water and prevailing winds, closeness to the sea/salty winds, being eaten by animals, etc. Download this lesson plan on how to calculate the age of a tree.
Size: 464.11 Kb