Long Night Flowering
Long Night Flowering refers to cannabis cultivars that initiate and complete flowering cycles in response to extended dark periods, typically 12 hours or longer per day. This photoperiodic trait is common in photoperiod-dependent (non-autoflowering) strains, where flowering is triggered by shortening daylight rather than age. Breeders distinguish Long Night Flowering plants from autoflowering varieties, which flower independently of light cycles. This classification is particularly relevant for outdoor cultivation in higher latitudes, where natural day-length changes align with seasonal progression. Understanding this trait helps cultivators plan harvest windows and select appropriate genetics for their growing environment.
Long Night Flowering strains
No strains tagged into Long Night Flowering yet — they'll appear here as breeders submit lineage records under this classification.
Long Night Flowering refers to cannabis cultivars that initiate and complete flowering cycles in response to extended dark periods, typically 12 hours or longer per day. This photoperiodic trait is common in photoperiod-dependent (non-autoflowering) strains, where flowering is triggered by shortening daylight rather than age. Breeders distinguish Long Night Flowering plants from autoflowering varieties, which flower independently of light cycles. This classification is particularly relevant for outdoor cultivation in higher latitudes, where natural day-length changes align with seasonal progression. Understanding this trait helps cultivators plan harvest windows and select appropriate genetics for their growing environment.
Breeders working with Long Night Flowering genetics prioritize photoperiod stability and flowering consistency in breeding programs. This trait is central to regional adaptation, as breeders develop lines suited to specific latitudes and seasonal light patterns.
Educational reference · Cultivar metadata only · No medical claims