We received a cutting of another species of Epiphyllum, Epiphyllum Oxypetalum last year, June 2019.  As a totally surprise, we observed couple of buds on Sep. 24, 2020. Yesterday, Sep. 29, 2020.  We finally believed that one of buds was going to open.  You could see that the bud changed orientation and size.  So exciding!!  Wow, it only took 15 months to have buds and 5 days to bloom although I stayed up three nights in a row so I would not miss the actual blooming.  At 4:45 pm, Sep 20, 2020, we could see outer reddish tepals bend outward a little more.  Green color of stems were getting less green and more toward the white side.  We also noticed that the tip of the buds were getting a fussy look,  see as follows:

So far, primary stems were up to 50″ long.  Opps, the longest stem was just broke as it got too heavy with leaves.  Oh well.  Secondary stems were flat, approximately 23″ x 4″.  The flower was slower to open and quicker to close maybe because of size and weight.  We were able to captured the moment though along with color and movement. Stamens as male part are white / yellowish and soft, and female pistil with white stigma on top and white long tube.  It is spectacular.

Oct. 25, one more Epiphyllum Oxypetalum started opening early at 8:31 pm and then last photo of the day was taken at 10:02 pm for the day as follows:

Wow, We had another opportunity to take time-lapse video of Epiphyllum Hookeri, night flower bloom.  Two flower buds are so close to each other and ready to bloom the same night.  I had no clue which flower bud was going to open first.  As usual, the bud size was getting bigger and color was changing from green to white / pink quickly.    We were so excited to watch and record it again, especially during this difficult time of pandemic.  

This time, one flowers was opened 11:07 pm and the other opened after that. I missed the beginning of first blooming by just a minute but, second one was perfect.