How are zygocactus flowers pollinated in Australia? Watch the video to find out. Curious about collecting or growing these beautiful rainforest plants then look no further than my Growing Zygocactus ebook. Lots of information about growing, identification, flower comparisons over 54 pages including 244 colour photographs. Depending where in the world you live you may know these plants as Zygocactus, Holiday Cactus, Christmas Cactus, Thanksgiving Cactus or Schlumbergera.