You can tell the age of a young tree by counting its whorls. Whorls are the circular growth of branches around the same point on the tree trunk. Young trees start to lose their branch whorls at the base of the tree as they begin to grow stronger and taller.
Notice the scars where the whorls have fallen off.
How old is this young tree?
Click the tree to find its age.
This young tree has three whorls on the bottom where the branches have fallen off and six whorls on top that are green and full.
This tree is 10 years old.