@aquasilva - I think she said that the kind ruled 10 generations ago, and his reign was particularly long - he ruled for almost 100 years. Even if he started as a child, that's impressive longevity.
@Kaarme - having seen settings where clouds have to be herded manually, and sun depends on the monarch to make it happen, I don't take ordinary natural laws for granted.
Also, the tree may have been poisoned by the enemies, within or without.