Flower Site Density

Flower site density refers to the concentration and spacing of floral development nodes along the main stem and branches during flowering. Breeders classify plants across a spectrum from dense (tight inter-nodal spacing, flowers clustered closely) to airy (loose spacing, flowers more spread along the stem). This architectural trait is influenced by genetics, environmental conditions, and the balance between vegetative and reproductive growth phases. Density affects light penetration into the canopy, airflow patterns, and harvesting efficiency. Lineage records frequently report flower site density as a heritable characteristic, with some cultivar families consistently producing tighter or more open structures.

Breeders working in indoor cultivation often select for higher flower site density to maximize yield per unit of vertical space, while outdoor-focused programs may prioritize moderate density to reduce mold and mildew pressure. This trait is commonly combined with plant height and branching architecture to achieve target canopy shapes and production profiles.