Screen Of Green

Screen of Green (ScrOG) is a horizontal canopy management technique rather than a genetic family, but it has become foundational to modern cannabis cultivation breeding. The method uses a mesh or string screen positioned above plants to create an even, flat canopy that maximizes light penetration and yield per square meter. Breeders and cultivators commonly associate ScrOG practices with plant phenotypes exhibiting lateral branching, moderate height, and responsive vegetative architecture. This technique became widely documented in underground cultivation communities starting in the 1980s–90s and has influenced breeding priorities toward shorter-internoded, bushier plant morphologies. Understanding ScrOG compatibility helps breeders select or develop varieties suited to controlled-environment agriculture and space-efficient operations.

Breeders working in intensive indoor environments often prioritize plant architecture traits—such as lateral branch production, node spacing, and flexible stem structure—that accommodate ScrOG training. Selecting for these structural characteristics has influenced modern cultivar development, particularly in compact, high-yield-oriented breeding lines.