A question from a fellow grower:
how often do u top outdoor plants
It depends how wide you want them to get, how many “tops” you want them to have. Topping is a pruning technique used to enhance yield. You can find more on topping here at ILGM:
I would think topping them once would do you, unless you need to keep your height restricted.
And read the Grow bible excerpt, that McG posted