Watching Epiphyllum Hookeri, night flower bloom / open was amazing.   Taking time-lapse video is more fabulous than I can describe and also a challenge.  We set the equipment up in the daylight as I did not want to miss the actual opening as I did last time.  The flower opens around midnight and the next day it is gone, but the tea from the flower is healthy.

A time-lapse is compressed video frames on subjects, where the process is sped up. So when the flower was opening last night, around 10:40pm, it took approximately 28 minutes and this video was compressed into only 23 seconds long Time-lapse. Not too bad.  I sat on my chair waiting and watching for the flower to open.  Then flower bud was getting bigger and bigger until the narrow pointed white petals started to open, the outside of the petals opening first.  Based on one friend, a plant ecologist, moisture content gets into flower bud and pushes petals open so now we understand the process. I was surprised on how quickly and suddenly each petal opened once it started.  Amazing.

Here is another video of night flower blooming at night, this time opening started around 11:30pm, 8/26/2020