N = Nitrogen
P = Phosphorus
K = Potassium (or Potash)
Most fertilizers come in different ratios of N, P, and K. If it's your first grow, I wouldn't really advise using fertilizer, but if you really want to... get something that is 5-1-1 ratio (5 parts N, 1 part P, 1 part K). Almost every boxed plant food you get will show you a ratio like the one just mentioned.
I personally use 30-10-10 "Expert Gardener" Azalea Plant Food, but you can get Miracle Gro or whatever brand you want. I have a 10-54-10 plant food but I'm saving it for flowering.
Remember, when starting out, use LESS than what the package says. You don't want to accidently ruin your crop. |