Hi Rosa. Yes, you did something very wrong! You should have heated your greenhouse up to 38C! lol

Seriously, I am assured by our mentors here that it is perfectly normal for adeniums to drop their late blooms as temperatures go down. I had 3 plants with flower buds of different sizes that fell one by one after I brought them inside. I think the plant gets confused by the change in environment and responds by aborting the expensive process of producing flowers.

I bet you'll get tons of flowers in the spring!

Pagan

Rosa,
Pagan has given you good info. and I have also dealt with this on many of mine and will have wait now until next year.
Rick

Thanks Pagan and Rick with your help. I forgot to mention that my greenhouse Is heated. That's where I keep my plumerias and orchids, even my Hawaiian palm has bloomed. I just hope that they don't get mad at me for killing their buds!!!LOL and go on strike and never to bloom again like one of my DR did 3 years ago! It's a thai graft called Snow White triple flower. The first 2 years it didnt stop flowering, then all of a sudden it just exists. gives out new leaves, branches buds, then they turn brown and drop like flies. I guess they have a mind of their own. LOL