Thank you Leafmite for the reply. I've been looking for info on the parents and your reply prompted me to search harder. I had free time tonight and I found that Edvah Loo 'Nishida' is a primary hybrid and a cross of Brs. arcuigera x Brs. gireoudiana.
The info I find is that, overall, they both like warm and very moist growing conditions. Not seeing much in way of cool growing temps but diurnal temp range is mentioned for arcuigera: "In nature in winter and early spring there are warmer days and cool nights, which gives a greater diurnal temperature drop" (Source and credit given to Travaldo's blog website).
And for watering culture, the only nuance I am finding is again for arcuigera: In its natural rainforest environment, "precipitation is abundant throughout the year, with the exception of fairly dry winter months and early spring." (Source and credit given to Travaldo's blog website).
This may be a clue. Prior to dividing, my 'Nishida' bloomed twice in the past 5 years. Each time it was springtime and also each time I was living between 2 locations and my plants were being watered but neglected compared to me being with them full time. So, maybe this was a forced drought on my 'Nishida' in early spring which prompted blooming.
The plant, as a houseplant orchid, was enormous. I had to divide it in order to get it to fit in a window spot for best lighting.
I am looking at other 'Nishidas' online and on OB. They also seem to be very large plants with not many spikes. I am hoping I can reach a happy medium where mature bulbs will be content to bloom in a 6" pot. If they really need, say,12-20 bulbs in a 10" basket to bloom, then this hybrid is too big for me to reasonably grow well in my indoor space. And I will have to choose something more appropriate for my space.
Some photos below when it bloomed years ago. For scale, that’s a full size hammer.
Quote:
Originally Posted by Leafmite
Give it a full cycle after the dividing and it might bloom for you. If it doesn't...has it ever bloomed for you? Some of these need a dry period, a cool period or a longer/shorter day period. If you can see what ancestors it has and from where they come, it might help you to determine what it needs.
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