Native: Mediterranean
Can live over 2,000 years old.
Drought tolerant (extensive roots)
Green olives and black olives are soaked in a solution of sodium hydroxide to remove oleuropein
Some trees are self sterile: must have a second tree to reproduce.
Two kind of flowers: a perfect flower containing both male and female parts, and a staminate flower with stamens only.
Seed propagated trees revert to the original small-fruited wild variety.