Cool, well done!
I'm not sure what the record is, but mature plants have spikes that easily reach 1.3m+, and roots that can be just as long.
It's not a compact Phal by any means, and needs substantial space and fertilizer. Looking forward to seeing yours all grown up!
What you're missing is hard to diagnose, however, this lack of blooms most likely comes from temperatures.
Philippinensis is an "altitude" Phal, and temps in its natural habitat reach the low 10s°C. It prepares its flowers in winter and they all bloom (up to a hundred) at once in spring, so you're within the time frame.
The infamous "temp drop for Phal" really is helpful with this one.
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I fertilise my orchids with the ashes of the ones that didn't want to bloom.
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