Plant Morphology Height

Plant height is a fundamental morphological trait in cannabis breeding, ranging from compact dwarf phenotypes to tall, vigorous plants. Height is influenced by both genetics and environmental factors including light intensity, photoperiod, and nutrient availability. Breeders classify cannabis plants along a spectrum: short-stature varieties (often 60–120 cm indoors) are commonly associated with indica-dominant or heavily selected cultivars, while taller phenotypes (150+ cm) frequently appear in sativa-dominant lineages. Understanding height inheritance helps breeders optimize cultivation systems, manage canopy control, and adapt genetics to different growing environments. Height selection has shaped modern breeding populations, with some lines specifically developed for compact growth in constrained spaces.

Breeders actively select for height stability to match production infrastructure and regional growing conditions. Stacking height genes with other desirable traits—such as flowering time or terpene profiles—requires methodical selection across multiple generations to establish predictable phenotypes.