I used one that was an orchid food, but had urea in it so I stopped using it. Luckily I rarely used it as I didn't notice it helping.
Recently I bought Better-Gro bloom booster. I know bloom boosters don't really work, but I've had issues with higher nitrogen ferts with beautiful green leaves and no flowers (for orchids and none orchids) this one is 11-35-15. Since using it I've noticed more root growth and two phals may have spikes as of this weekend!! I use it very weakly with almost every time I water. Some days when things seem dry I just use plain water. But it says a teaspoon per gal I probably use 1/4 or less of a teaspoon.
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