41/2 feet tall,what did you use for light,these ones were bred to max at 5 feet even outdoors,it took a few years to do but he did it.but he vegges them shorter periods every 7 weeks he cuts and at the end of the year he has increased his yield by a third,but if you have the light to penetrate the bottom of the plant go for it,all depends on what you have and how you want to do it.i have seen both ways,and i prefer the two extra weeks for flowering.but if you use good lights in veg you could grow them quite quick.