12 12 Flowering Cycle

The 12/12 flowering cycle refers to a photoperiod-dependent breeding and cultivation approach where plants receive 12 hours of light and 12 hours of uninterrupted darkness daily. This light schedule is commonly used to trigger and maintain flowering in photoperiod-sensitive cannabis cultivars, contrasting with autoflowering genetics that flower based on age rather than light cycles. Breeders and cultivators working with photoperiod strains rely on 12/12 cycles as a standardized method for inducing reproductive phase development. The term appears frequently in lineage documentation and strain testing protocols, particularly for strain stabilization and seed production. Understanding 12/12 cycling is foundational for anyone breeding or preserving photoperiod genetics.

Breeders use controlled 12/12 cycles to reliably induce flowering in photoperiod parents, enabling consistent seed production and trait expression observation. This standardized approach supports reproducible phenotype selection and is essential for photoperiod strain stabilization across multiple generations.