You can do it! I am growing 6 plants that I started at 12/12 from seed. I am guessing I am going to get about a half once a plant dried. Thats the real only downfall is that you wont yield as much if you start flowering right away...OH WELL...IT works for me. I don't have alot of room in my grow room, so this 12/12 from seed method works fine for me