Claude,

Humidity is a pain in the ass to control precisely.

Basically, I don't worry about it in the summer, and in the winter, i struggle to keep the RH up.

The trouble is that the RH goes up as the temperature goes down at a constant "true" water content
of the air.

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Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, and Lots of Free Info!

.. . . . . . . . . . .
"PhalGuy" wrote in message
s.com...
Hello AL ! or Ray !

I have read in many books and on the monreal botanical garden that the
relative humidity for orchids like Phal, Paph, Onc should be at around 70%
during the day and 40 % at night!

Is this true? Do you do this or do you maintain the same percentage of RH
all the time?

Thanks

Claude

PS: AL, I`m very jalous of your greenhouses ! Can I go work for you! :-)


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