Oaks can get quite a lot older than 300 years, so I think that's the overall average, but I have no data to support that.LynKit wrote: ↑Mon 21 Sep, 2020, 6:30 pmHrrm, good question! The story wasn't long enough for deep research...
Seems to depend on the species.
But I can link to the wikipedia page for northern europes probably oldest living oak: https://en.wikipedia.org/wiki/Kongeegen
It's age is estimated to be
1500 - 2000 years; a 1965 study estimated it to 1450-1900 years, but that's 55 years ago, and afaik, it's still alive.