I too was using a 400w HPS to flower 7 ladies and it's not sufficient, so I changed to a 1000w. I would say 6 is the absolute max you'd want to try.. And by doing 6, you would only want to veg until plants are 12" in height. . . Even if you LST, shoots will grow and overwhelm your space horizontally. More so for me because I have white widow... (big plant) lolz
Salvein211 Reviewed by Salvein211 on . How many plants... It may have been asked and I just cant find the answer, but how many plants can one finish under a 400w HPS. The grow space would be 3x3.5 ft. And could I use SOG in this small space? What about height, when should they be forced to flower? Im losing my mind here... :i feel stupid: Rating: 5