Topping is a training method similar to FIMming. By cutting or pinching off the apical meristem, the cannabis plant will produce two primary colas, rather than the normal one.Related Articles: Scrogging: Bringing your Grow into ControlCanna Cribs Episode 2: Grow Op FarmsRelated Terms:Term: CuttingsTerm: TrainingTerm: FIMmingTerm: MeristemTerm: Cola