Beautiful and amazing! I hope she fruits soon!
I sort of gave up on Jaboticaba's - I thought I was in a climate that was too cold and that Jaboticaba's were too sensitive to sunlight and water and soil pH to be worth growing. It turns out that after killing most of them the four survivors I have suddenly picked up and grew literally to three times their size this last year. I now think that they are delicate in the first two to three years and afterwards they are a beautiful and very rewarding plant.
I only have four left though
Solko: YOU SHOULD GROW AS MUCH Jaboticabas AS YOU COULD!
For instance, I planted 8 below another trees at my garden and all of them are doing great!, I bought 5 years old jaboticabas to do that. You could find a good source of mature jabos at Europe, bought and plant them, dont just wait for seeds (I will send you any seeds, but you will have to waiste a lot of lifetime waiting), grow mature jaboticabas and be happy ;-)
And you are right: after 2 or 3 years they begin to behave fine and they are very difficult to kill!
At my garden temps can go below 2ºC, but I planted 2 jaboticabas (unknow ID, similar to sabará, 2 feet tall, 5 years old) in the open fields of some friends (near big trees) and they survived to -5º C just fine.