Yeah - not flowering - looks good to me. Could be a little greener - cal/mag would help that. Are you growing it au naturel? If yes, then call me crazy but as I look at the pic - I would cut off those two large fan leaves top of the pic and the bottom one. Cuz if you look underneath them, there are bud sites on each side that will shoot up with the main cola if exposed. Then as the plant progresses, there are more large fan leaves to be cut that will offer more bud sites. Only take 2 off at a time. Should get a total of eight potential branches that will all shoot up together - plus the main cola.