How Cannabis Seeds Genetics Affect Internodal Spacing & Stretch.
How Cannabis Seeds Genetics Affect Internodal Spacing & Stretch. Internodal spacing and stretch are two of the most important — and most misunderstood — aspects of cannabis plant structure. They determine how tall a plant grows, how light penetrates the canopy, how buds form, and how manageable a grow will be. While lighting and training influence plant shape, the foundation of internodal spacing and stretch is set at the cannabis seed level. At Discount Cannabis Seeds, we regularly explain that you cannot fully control stretch through environment alone. This guide explores how cannabis seeds genetics affect internodal spacing and stretch, why some plants stay compact while others explode upwards, and how to choose seeds that suit your space. What Are Internodes and Stretch? Internodes are the spaces between nodes (where branches and leaves emerge) Stretch refers to the rapid vertical growth that occurs, most notably during early flowering Both traits directly affect final p...