Why don't my Miltonopsis flowers open?

[orchidsarefun]

your plant may be overpotted. Mine is in a tiny pot and I had 5 spikes flower this year. I also have a new growth.
Also
- mine is in a sphag mix. I water 1x per week by standing pot in a container with water level 1/3 of pot ( 20 mins )
- I also water from the top at same time
- usual fertilise weakly 1x per month
- mine only gets natural light, with sun for about 1hr per day
- temp down to 62 overnight
- I have a humidifier close by
As with everything YMMV ( your mileage may vary, meaning you gotta do what works for you ! )