This tree is in the inland Southern California. The purple berries grow from summer through late fall and stain everything they come in contact with. Are they poisonous? What's the name?
Look into Syzygium and Eugenia. Names have changed.
It is almost not frost hardy here, and only one species is grown in 9b, that is Z. paniculatum.
Fruit is edible, in the species I am familiar with. It can be any of several colors, usually somewhere between magenta and purple.
Make sure it is properly IDed before you eat it!
One way to ID it is to look for pits and distortions of the new leaves. There is a pest specific to this genus that damages the new leaves.