Pigment Composition

Pigment composition in cannabis refers to the presence and concentration of flavonoids, carotenoids, and chlorophyll that create the plant's visual coloration. These compounds are distinct from cannabinoids and terpenes, though they often co-occur in similar plant tissues. Pigment expression is influenced by genetics, growing conditions (temperature, light, pH), and plant maturity. Breeders and cultivators have documented correlations between certain pigment profiles and particular chemotypes, though pigment appearance alone does not reliably predict cannabinoid or terpene content. Understanding pigment composition is useful for phenotype identification and environmental optimization rather than predicting effects or potency.

Breeders working with pigmented lines (purples, reds, deep greens) often track pigment stability across generations to maintain consistent visual markers. Pigment traits can serve as visual indicators of environmental stress tolerance or phenotypic expression, helping breeders select for desirable cultivation characteristics within a lineage.