oh, well too late, I already added the lime . Will that hurt it or what? What is rootbound? I also got a 400w mh today too. Not that that will correct my soil problems, but... just saying . My boss said it will help out other than the ph, it'll even things out or something, and make more efficient use of the fertalizers or somethinglike that, don't remember exactly what he said, but he's in charge of maintaining the golf courses, so I mean, I'd trust he knows what he's talking about.