Altitude Selection

Altitude selection refers to the practice of cultivating cannabis at specific elevations to influence terpene profiles and plant phenotypes. High-altitude environments—typically above 1,500 meters—expose plants to increased UV radiation, lower oxygen levels, and temperature fluctuations, which can trigger distinct secondary metabolite production. Breeders and cultivators working in mountainous regions have long observed that elevation influences aromatic compound development and plant structure. This environmental factor is often studied in the context of terroir-driven breeding programs, where altitude becomes a documented variable affecting terpene expression across generations. Understanding altitude's role helps breeders replicate specific aromatic and structural traits in controlled settings.

Breeders use altitude as a controlled environmental selection pressure to develop cultivars with enhanced terpene diversity and stress resilience. By selectively breeding plants grown at varying elevations, geneticists can isolate and stabilize altitude-responsive traits that influence flavor, aroma complexity, and plant vigor.