| fertilizer questions
I'm pretty confused about fertilizers. I have 2 oncidiums and 1 dendrobium, currently all in beautiful bloom. Should I be using a balanced fertilizer (20-20-20) or one with a high middle number? When they are done blooming, should I use a high nitrogen fert, or balanced? I understand that I should dilute the normal amount by 1/2 and should flush with plain water once a month, but want to know which to use. Also, how do you know when to repot? I can't really see the roots on these guys. Should I just yank 'em out to check? I'm in Fairbanks, Alaska and my orchids are in a south window. Thanks for any advice! |