the tag attached to my orchid said to use fertilizer of 20-20-20 but I read if you use barks instead of moss, the middle number should be higher. Is that true?
I myself do not stress over what kind of fert I use ...LOL I use what is handy rapid-gro ,miracle-gro,peters....as long as its a balanced fert I pretty much use it.My phals grow like weeds and bllom well.
They do say back needs a higher rate of one but I think its nitrogen >>>would hvae to look again to be sure.
Usually higher nitrogen, which is the first number, is recomended for bark, but many people have good luck with the 20-20-20 also. I use 20-14-13, and have good results.