i want to start my first grow with g13 haze. i have read that the plants maximum height is 90cm. is it okay when my box is 1m² and 140cm high or should i build a hihger box. how many plants can i put in there and how big should the pots be. is it somehow possible to influence the plants height and radius ? please link.
You can never have a box that's too big or has too much light in it. Build it as tall as you can. Mine is six feet tall and I wish I had made it taller. You could probably put four or five plants in there in three or five gallon pots.