Gonna be growing ww and northern lights outdoor for my first grow. I have help from a buddy whose dad has grown for 20 years. How much can I actually expect out of each surviving plant? I know it says about 300g/m2 for ww, and 600g/m2 for nl. Is this accurate? I know that's the "potential" but thought someone with more experience might be able to clue me in. I want to know how much seeds to order...we're gonna need bout 5 lbs for the three of us growing (personal use). THanks GC.