Canopy Density

Canopy density describes the visual thickness and leaf-area distribution of a cannabis plant's above-ground structure. It refers to how closely spaced branches, leaves, and flower sites are arranged vertically and horizontally—a trait influenced by genetics, node spacing, branching patterns, and internode length. Plants with dense canopies tend to produce compact clusters of foliage and buds, while open canopies feature more space between growth tiers. This structural characteristic is not an aroma or terpene profile, but rather a morphological trait that breeders and cultivators observe and record as part of strain phenotyping and cultivation planning.

Breeders selecting for canopy density focus on internode length and lateral branching architecture to optimize yield per square meter and airflow management. Dense-canopy genetics are often favored in controlled environments where space is limited, while open-canopy cultivars may suit outdoor or greenhouse production where disease pressure and environmental control differ.