orchids impossible to bloom

What are the orchids that are practically impossible or very very hard to bloom in average house (non-greenhouse) in Canada.
I just want to know them to stay away when doing my "non-researched" purchases.
Thank you.

[eggshells]

Yeah I wouldn't mind knowing these too. Maybe Paph Sanderianum, Rothschildianum, Glanduliferum? I hope not because I have them all!

[FairyInTheFlowers]

I would have to say that it all depends on your conditions! That phrase is one of the most used answers regarding cultural conditions, and boy, is it important! Lets say that your house during the summer gets up to 27*C during the day, and about 23*C at night (which is the conditions of our house where my bedroom grow closet is), that will most definitely give you a large chunk of orchids that you would not only struggle to bloom, but almost definitely KILL! Those would include almost all Pluerothallis, and many other genera that I cannot think of. Now on the other hand, lets say your house struggles to get over 21*C during the summer days, there will be a large amount that you would struggle to grow, such as Phalaenopsis, Vandas, some of the Catt Alliance, and probably more that I cannot think of. Now as you can see, there is already a large division based on temperatures alone, now bring in light, humidity, air movement, watering schedule, and, well it is obvious that in reality, your conditions determine what will thrive, and what will die!

[sii]

I agree with Cody. I found that I had to find the best spot for my phals and leave them alone. Well, mine are tempermental and don't seem to like being moved around.

They are all by my only east window and seem to be okay with this. When they were in any other window, they were alive, but wouldn't bloom.

[mattryan]

Originally Posted by eggshells

Yeah I wouldn't mind knowing these too. Maybe Paph Sanderianum, Rothschildianum, Glanduliferum? I hope not because I have them all!

[glengary54]

Originally Posted by mattryan

You just made my day, I can't stop laughing!!!

Thanks.

[Eyebabe]

I can think of some catts that are hard to bloom:

Laelia lobata is known at the "cattleya that never blooms"
C. warsewiczii is also known to be difficult.
Also some of the bifolates are known to be very picky.

With cattleyas, the species are more difficult to bloom than the hybrids but New City has also be touted to be tough to bloom "from home".

[eggshells]

Darn, I have a Laelia lobata var alba too.

[fishmommy]

Anything requiring a winter rest may be a pain for indoor growers.
Bulbophylum is an example.

[Vanda lover]

I agree that the winter rest ones can be a pain. I have a hybrid dendrobium that I bought a few years ago, from a vendor who told me it need no rest. She lied. It refused to bloom. I gave it a rest last winter, but maybe not enough of one, and it finally has 3 flowers. It should have bloomed early in the spring!