When we say that a human dies of old age, it means that he or she passed away from one of the common diseases associated with aging, like pneumonia, influenza, cancer, or liver failure. ... The longer a tree is around the more opportunities it has to have something happen to it that leads to its death. read more
Trees do in fact die of old age. However, the term ‘old age’ is always a secondary cause. When a tree gets old, it has trouble protecting most of its inner heartwood and/or exterior. This means it cannot fight damage as well as when it was younger. read more
Honestly, the question is a bit misleading. No living thing, whether plant or animal, really dies of old age. read more