Cannabis Seeds FAQ - How Long To Grow?
The question of how long to grow plants in Vegetative state indoors depends on 3 main factors.
How long to grow depends on three questions
What strain are you growing? How much space do you have? How many plants are you putting in the space?
The goal of indoor growing is to fill the plant canopy in the space and use all the available light.
Any light lost to the floor or spaces between plants will result in a less efficient grow.
As you have ultimate control over all factors in an indoor environment - the decision of how long to grow for ultimately depends on how big you want your plants...!?
You might also find our FAQ Submission How Do I Harvest My Plant? useful