al's 5-1-1 mix questions
so this year im going to try al's 5-1-1 mix out. im thinking about maybe making a couple modifications however and had some questions.
first, is there any reason to use pearlite over vermiculite?
second, can i mix in one part of compost as well, making it a 5-1-1-1 mix with no ill effects.
and third, also probably most important, can anyone direct me where to get pine bark fines in the philadelphia area?