Are you *seeing* any ill effects? Like slow growth? If not then don't look
for trouble, *G* You say the phals and dens spike under your present
conditions. Congrats!

You are getting the requisite 10 degree F differential between day/night
temps that orchids need for flower spiking. The 90F temp is a bit high, but
what can you do? You are growing orchids in your house under natural
conditions and that can't be changed. Unless you are God and can change the
weather right around your spare bedroom, *G* I'm glad you are at least
moving the air around to help cool them off a bit. If the temps are that
high for only a few days and then cool off (which usually is the case) then
you'll be OK. If they were that high for weeks to months then you'd have a
problem, and should look into a greenhouse or other method to alter your
growing conditions.

Orchids are adaptable and yours have decided they like you and have adapted
to Missouri's temps/humidity. Stranger things have happened. So sit back and
relax. Welcome to the hobby.

Keep us posted,

K Barrett


"Kevin" wrote in message
m...
So my plants are in a spare bedroom- a bit of natural light (more in
the winter, less in the summer- decid tree outside window), and 4
florescent tubes over them- 2 cool white, 2 "daylight".

The question is about temps. I, of course, heat the room in the winter
here in Missouri. Nice temp difference between day and night, maybe 55
night and 73 day. But in the spring/summer/fall, I leave the windows
open and let it go. Of course, it's humid as all get out, and I keep a
fan circulating, but the temps hit the 90's during the day, and may
not even get down into the 70's at night.

I grow mostly Phals and Dends. I'm fairly new, but so far no problems
with either. The Phals rebloom, and I even have a spike under
florescents on a Dendrobium! I'm wondering about long term
consequences- slow growth, etc. I am getting new growth on the
Phals....

What do you all think? Will they all flourish given the proper
humidity and lots of air movement? What will suffer?

Thanks for your knowledge....
Kevin