Mist King Systems

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I just spent some time away from home, with a few trips back to check on the plants. This time of year I normally open sunroom doors at night so my sunroom gets air circulation and the evaporative cooler does night-time cooling. With me gone I shut the whole thing so I could lock my house and keep the humidity up. The evaporative cooler runs all the time, but doesn't cool when relative humidity is high.

With relative humidity above 80% and temperatures at a near-constant 80-85 degrees F / 26-30C most plants remained moist for over a week. Exceptions were larger Paphs, Phrags and some rapidly-growing Cattleyas.

I had a few plants rot from the high humidity. I found one NOID Phal in S/H with what looked like Erwinia rot on the distal portion of a leaf. I took it into the house, cut off the leaf, and left it in my kitchen sink where it would get bright shade but much lower relative humidity. It has survived and is growing normally.

Ideally I should get some locking screens so I can leave my sunroom open to air circulation but lock it when I am not home.