I have several different epi cultivars, but most have never bloomed. They are all healthy with lots of foliage, but only HOOKERI STRICTUM blooms. I've had them all for at least 6 years. They are growing outside and get plenty of bright shade and watering. I've had to cut them back every couple of years. My favorite, that used to blooms, was E. Oxypetalum because of the scent and gorgeous flowers. But even she hasn't bloomed in years. Help! What "bloom booster" are you referencing in the previous posts?