At the time I had read that using orchid fertilizer will boost blooming. Well, the water soluble fertilizer I have works well for my dendrobium, but later realized that it had too high an N ratio which caused the lush growth on my adeniums. Since then I have come across different brands of orchid fertilizers with different NPK ratios.
Just remember, no high Nitrogen ratios in any of the fertilizers, with the exception of fish emulsion/seaweed fertilizer. The N on this one has to do with the "chemistry" between the media and the roots...the N is somehow slow-released or slow-acting.
