Difficulty getting my orchids to spike
About a year ago I bought some beautiful orchids from a reputable online dealer. I bought a few different Phals, a Cattleya and a Vanda. I bought them at blooming size and I keep them indoors (I live in Chicago). I provide them with ample artificial light. And water them only when their mix is dry about an inch down. And I keep them over a humidity tray. Also, I have been putting them in a cooler spot at night (I've heard that they like that in order to start blooming). Its been a while and all I've seen is new leaf growth, no spikes! What am I doing wrong?
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