3#vandasI think they open for couple days for display, not just 1 night as said in traditional chinese literature. ???
Yes, it is very hard to have all the flowers bloom at the same time but say 2 bloom first, the last one bloom when the first 2 are a bit shaggy.
5#vandasI think the flower may open wider at night when it is cooler. But they seems to be doing it again the next night. You have less than 1 week time. The one I have is very similar to the one on pic.
I think they are very hardy. I only kill them by watering too much. If one leaf break off, you have good chance that it become a separate plant if you shove it in another pot. It seems to be very similar to cactus.
(is it the plant that describe in the chinese literature.)