Hey turbo14,
This year I only have a couple bags of new soil, almost everything is ammended. Last year I did about 15 in just straight Mendo Mix. I definately had to feed later but I would say I got a solid 1 1/2 months to 2 where everything grew perfect and I didn't add anything except occasional cal-mag. I would say if around that time you top dressed with chix manure and worm castings you might be able to make it until flower without very much feeding. I would get the mendo mix before you need it because right now its still composting and warm.
This year I only have a couple bags of new soil, almost everything is ammended. Last year I did about 15 in just straight Mendo Mix. I definately had to feed later but I would say I got a solid 1 1/2 months to 2 where everything grew perfect and I didn't add anything except occasional cal-mag. I would say if around that time you top dressed with chix manure and worm castings you might be able to make it until flower without very much feeding. I would get the mendo mix before you need it because right now its still composting and warm.