I have a Zygopetalum Advance Australia, which I acquired a year ago blooming size...it bloomed for me this spring; I am expecting it to spike any moment now...it is in a glass vase drilled with four large holes in a mix of large coco chips, hydroton, lava rock and charcoal...I water it everyday in the morning and let it dry all day but it is a few feet from the heater and humidifier this winter...bright southside sun in my bay window