A trees growth rate changes in a predictable pattern throughout the year in response to seasonal climate changes, resulting in visible growth rings. Each ring marks a complete cycle of seasons, or one year, in the trees life.

How many years is a ring tree?

one year Since each ring corresponds to roughly one year of growth, making it possible to get a highly accurate estimate of a trees age. This use of tree-ring dating to find the age of a tree is also known as dendrochronology.