When we moved into our new house three years ago, one of our friends gave Patty an olive tree to plant because Patrick is well know among our friends for his love of olives. The tree grew well and is now very tall. We did wonder if it would ever flower up until about a month ago.
Then the flowers bloomed and started to go away and I did a bit of research as I was sure that just because it flowered, could it be that the plant was a male plant. Again, more research suggested that olive trees in general have male and female parts to the flowers in the one plant.