This one is a Australian Beach Cherry plant. They are supposed to grow easily. They produce a nice red shiny, miniature pear looking fruit.
It does well in colder climates and according to what I've read after it grows to 12 inches high it is strong enough to start producing fruit.
Here is a picture.
|Australian Beach Cherry plant|
I'm also thinking that if it keeps growing at this pace I'm going to have to up pot it by next weekend.