That is why I love my ginkgo....;-)) I always plant trees knowing
before hand how long they are expected to live, and I also check
on whether they are susceptible to bug or disease damage.

I know regular olive trees can live 500 years or more, but I just don't
know about Russian olives, I guess, since my informant apparently
was wrong. Maybe the ones that disappeared in my neighborhood
suffered from the fungus (canker) attack.

I saw on the NatGeo channel a Joshua Tree (in the park of the same
name) that they believe to be about 2,000 years old.

N.