Yeap. Tam, check the thread in the Pete's post.
It is quite long, get a cup of coffee before you start reading and do not get depressed when you get to the end.
Also, I suggest you put up a strong fence around your Ischia because if it's a real one, it may be the only one :)
And the second reason, that thing for me grows so fast that it will take over your lawn in no time at all!
Good luck with it! Please update in case you see it producing.