It is usually mid-to-late summer here in southern China, near the Vietnam border. They tend to turn up around August..And, yes, the season is short.
However, I also noticed them on sale just yesterday. I suspect, but don't know, that they are being forced in greenhouse type environments (not easy with tree fruits, I suspect) or some other technological fashion. Either that or they are being imported from somewhere further south where it is still warmer.
When I first came to China, I loved how everything was very seasonable, but just recently we are getting fruit and vegetables at all the wrong times. With a noticeable dip in quality/flavour.
