When does den. Crumenatum bloom
 

I was wondering what causes den. Crumenatum to bloom I've heard drops in temp,flooding it with water and barometric pressure I was wondering which one causes it to bloom thanks!!!!

Botanica's Orchids says "it produces large numbers of flowers several times a year in response to a sudden drop in temperature, usually when a tropical rainstorm occurs"

So it would seem the water and barometric pressure are likely casually related to the drop in temp needed.
Altho - IOSPE says blooming is after a temperature drop AND rain ...
IOSPE PHOTOS

in malaysia, usually it blooms a few days after heavy rains (+ temperature drop)

i have one out in a basket. it does indeed bloom from a drop of about 10-15 degrees in temperature. pretty much 9 days from the temp drop, they open. the flowers only last a day unfortunately. they smell like ivory soap but are pungeant.

Sounds like a really interesting orchid. Are there many others that need this kind of trigger to bloom?

i think bulbo vaginatum also response to this kind of stimulus. but unfortunately, i've killed mine and have yet to get any replacement.

btw, my den crumenatum doesn't smell nice like my older specimen which smell very sweet. the new one, well, uhm, smell more like cockroach! i wonder what went wrong! i am so getting a new one coz my parents have split the old specimen plant and gave to their friends and keep a minute division only!

mine has a bloom stalk but it doesn't seem to want to bloom

also can you artificially induce blooming by maybe putting it in the frig for a few minuets and then give it a heavy watering or something?

I am told you can 'cheat' by putting a crumenatum in the frig but I suggest you experiment with someone else's plant first.

Baz