Here is my dwarf pomegranate, just in training, not ready for a pot. I managed to make one, lonely pomegranate this year. It is tiny, about the same diameter as a nickle.
Sun and lots of it! I have 7 or 8 planted on the South side of my house in full Las Vegas sun. One was part of my liner stock from last year and put on nearly a quarter of an inch in girth since then which is pretty darn good for a 'nana'.
Cute little piece of fruit. I have about six pomegranates, but I've never gotten a fully developed piece of fruit.... not sure why. I get a lot of flowers but they develop about half way into a full piece of fruit and stop.