Training Method Scrog

SCROG (Screen of Green) is a horizontal training method where growers install a screen or net above plants to create an even canopy surface. Breeders and cultivators working with SCROG systems typically select or develop cultivars with flexible stem structure and moderate branching patterns, as the method requires tucking and weaving growth through the screen. This training approach became systematized in cannabis cultivation during the 1990s and remains relevant in indoor breeding programs seeking to optimize light interception and yield per square foot. The method is particularly suited to cultivars with longer internodal spacing or laterally-responsive growth habits. SCROG is often paired with photoperiod-dependent genetics, though some breeders experiment with autoflowering cultivars under this system.

Breeders developing SCROG-adapted cultivars prioritize traits like stem flexibility, responsive lateral branching, and canopy uniformity. Genetics with slower vertical stretch relative to lateral development are often selected in lines intended for high-density, screen-based cultivation systems.