What Are Nodes in Cannabis?

Nodes are the points along the cannabis stem where leaves, branches, and flowers emerge. Each node contains growth tissue that allows new plant structures to form as the plant develops. Nodes appear in pairs along the stem and become more prominent as the plant matures.

How Growers Encounter Nodes

Growers encounter nodes when identifying plant structure, training plants, or pruning branches. Nodes are often used as reference points for topping, low-stress training, and identifying preflowers. Spacing between nodes can also give growers clues about plant health and light exposure.

Why Nodes Matter

Nodes determine where branches and buds form on the plant. Well-spaced nodes can lead to better airflow and more even bud development. Tight or stretched node spacing can affect plant shape, yield, and overall efficiency of light use.