Chlorophyll Fade

Chlorophyll fade refers to the gradual breakdown of chlorophyll pigments in cannabis plant tissues during late flowering and curing, often resulting in color shifts from green to yellows, purples, or browns. This process is not a terpene but rather a visual phenomenon tied to plant senescence and pigment chemistry. The breakdown occurs naturally as plants redirect nitrogen and other mobile nutrients away from leaf tissue toward reproductive structures. Breeders and cultivators observe chlorophyll fade patterns as an indicator of maturation timing and genetic predisposition to anthocyanin or carotenoid expression. Environmental factors—temperature fluctuations, light spectrum, and nutrient availability—influence the rate and intensity of color change. Understanding chlorophyll fade helps distinguish genetic potential from cultivation technique in final phenotype expression.

Breeders track chlorophyll fade patterns as a phenotypic marker for harvest readiness and genetic consistency across generations. Cultivars with predictable fade timing provide reproducible visual cues for optimal harvest windows.