Hi Emily,
There are quite a few Michiganders on this site, covering most of the state. I haven't heard from any in my neighborhood of Redford though.
I just put a humidifier in my plant room last week to bring the humidity to 60-70%. Like you, my trays were only keeping it at 40% or so. I go through about a gallon of water a day right now with the forced air heat on.
Once spring comes, the room stays stable at 65% and I don't need the humidifier any longer.
What & where is Porters? I have never heard of Taylors Orchids; where are they and what do they have?
Thanks, Chris