Airflow Structure

Airflow structure refers to the physical architecture of a cannabis plant that influences air circulation through its canopy—including branch spacing, leaf density, and internode length. Plants with open airflow structures typically feature wider branch angles, longer internodes, and less dense foliage, allowing air to move freely between nodes and reducing moisture pooling. Conversely, tight or dense airflow structures have compressed internodes and heavier leaf coverage, which can increase humidity retention but demand careful cultivation management. Breeders working in this category often select for airflow traits based on cultivation environment: open structures suit humid or indoor conditions where disease pressure is high, while denser structures may preserve volatile compounds in drier climates. Airflow architecture is largely genetically determined but can be modified through tra

Breeders intentionally select for airflow traits to match production environments—indoor cultivators often favor open-structure genetics to reduce powdery mildew and bud rot, while outdoor and greenhouse programs may prioritize density for terpene retention and mechanical protection.