Growth Metrics

Growth Metrics encompass quantifiable plant characteristics that breeders and cultivators measure to evaluate cannabis development, including height, internode spacing, lateral branching patterns, flowering duration, and biomass production. These measurements form the foundation of phenotypic selection and serve as objective data points for comparing cultivars across growing environments. Understanding growth metrics helps breeders identify genetic traits linked to structure, yield potential, and cultivation efficiency. Documentation of these traits across multiple generations allows for informed selection decisions in breeding programs. Growth metrics differ from morphological descriptions in that they rely on numerical data rather than visual classification alone.

Breeders prioritize growth metrics to stabilize desired plant architectures, predict performance under different growing conditions, and develop cultivars suited to specific cultivation methods—whether vertical farming, outdoor production, or constrained indoor spaces. Consistent measurement of these parameters across generations enables more precise genetic mapping and informed parent selection.