K Barrett N Calif, USA
I would disagree with the article in Orchids, I find that in the midwest that humidity is much more important than temperature. I grow my Sophronitis under intermediate to warm conditions with about 3000 foot candles and as much humidity as possible. I have even grown it warm under lights with only about 300 foot candles but lots of humity and it was quite happy growing and blooming, of course it grew slowly in my greenhouse with more light it is much happier growing and blooming. After growing plants under lights for years I did not think light was that much of a factor, and I find that most of my orchids grow better under much higher light than is often recommended. The main factor for many of them is humidity. I can not provide enough humidity except during July and August, what we call corn growing weather. It is a comfortable 86 with 70% humidity and with my misting system it is probably closer to 95% humidity in my greenhouse. In the winter I am happy when I can keep it above 70% humidity.
--Tom
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