Plant Height Dominance

Plant Height Dominance refers to genetic traits that influence the vertical growth patterns of cannabis plants, ranging from compact, bushy phenotypes to tall, stretch-prone structures. This classification is determined by multiple polygenic factors and environmental conditions, making it a complex trait in breeding programs. Height dominance is often categorized into dwarf, medium, and tall expressions, with some lineages showing consistent vertical architecture across generations. Understanding these growth patterns is critical for cultivation planning, as height affects canopy management, light penetration, and space efficiency in both indoor and outdoor settings. Breeders working with established lines frequently document height ranges to predict crop behavior and optimize breeding objectives.

Breeders select for specific height dominance traits to match cultivation environments—compact genetics for space-limited grows, and taller expressions for outdoor or high-ceiling facilities. Height stability across generations helps establish reliable phenotypic standards within commercial and preservation-focused seed lines.