I went to walmart today to the garden section to check out what they offered... I'm not sure what kind I need exactly, and I know if it turns out to be lacking in anything (NPK's) then I can get some plant food high in which one it needs and supplement, but the question I have is: I can use the same type of soil from seedling to flowering, correct? and is miracle grow alright? I think the one that they had at walmart said it feeds plants for ~3months. Does this mean that unless there is a problem, I shouldn't have to give my ladies any nutrients at all? Or is it still advisable to give them some after the first couple weeks?