Were you using any nutrients? I have mostly used advanced nutrients, but I haven't had much experience with outdoor, or with soil. I grow indoor hydro. Any nutrients brand will have a good amount of nitrogen in the grow, which is what you use in the early stages. All nutrients bands will have 3 numbers on the front. It's called NPK. nitrogen (N), phosphorus (P) and potassium. The first number is always the nitrogen. Just get a good 3 part grow regiment and it should have plenty of it. Nitrogen is what gives you the green leafy growth. You want it in the early and middle stages so you get a tall healthy plant. You don't want as much once you start to flower because it will effect the nugs, and resin produced. Also, mold and mildew love nitrogen so having to much can make mold problems a lot worse. If you use some good soil like fox farm or roots organic, and some nutrients I'm sure you won't have notrogen problems.