- ok guys, so i'm doing my first grow here soon. Im growing in the woods, somewhere in the neighborhood of 10 plants. I cannot get fox farms or any high end stuff. So im thinking, whats another good commercial soil, preferable one I can find at walmart, HD, lowes, etc. Also whats some good ferts or veg or flowering? (again commercial) Also how often and how much (gallon measurements) should I water these babies? Thank you so much im such a newb at this...hoping to be better in the Future! Also just general stuff like how fat down Gould I put seedling, seedling spacing, amount of water for seedlings. Sorry but I want a good harvest