Delayed flowering in cannabis can result from environmental stress, inconsistent light cycles, nutrient imbalances, or genetic predispositions.
For photoperiod plants, improper light schedules—such as light leaks during the dark cycle—are a common cause.
For autoflowers, genetic disposition is often the cause, but sometimes autoflowering does not occur despite being an autoflower seed, so it must be treated like a photoperiod with regards to flowering.
Delays can extend growth timelines, reduce yield predictability, and sometimes trigger hermaphroditism. Stable lighting, healthy nutrition, and stress reduction are key to avoiding this issue.
