If you want a bonsai tree and live in Rome, check out the little shop on the V. del Coronari, 16. These dedicated guys know their stuff. And, when I go away, they tree-sit for as long as I need.
I prefer to think of my little tree as a pen jing rather than a bonsai, but bonsai’ll do.
Here is pen jing getting some morning sun after a drink and a thorough misting: