Nodes are where the magic happens. Learn to identify and leverage these growth points for propagation success.
What Is a Node?
A node is the point on a stem where leaves, branches, or aerial roots emerge. It's also the primary site of root initiation in propagation. Understanding nodes is the single most important skill in cloning plants.
Identifying Nodes
Look for:
- Points where leaves attach to the stem
- Small bumps or ridges along the stem
- Areas where branches split off
- Aerial root nubs on some species
Why Nodes Matter
Roots emerge from the meristematic tissue located at and just below each node. A cutting without a node will not root — it will simply sit in the medium and eventually rot.
Cutting Technique
When taking a cutting, always ensure at least one node will be below the soil line. For best results, include 2-3 nodes below the surface. Make your cut just below a node — this concentrates rooting hormones at the wound site.
Advanced: Node Spacing
On plants with widely spaced nodes (like many vining species), you can take multiple cuttings from a single stem. Cut between each node, ensuring each segment has at least one leaf and one node below.
Pro tip: When using propagation gel, make sure the gel coats the node itself — not just the cut end. Roots will emerge faster and more abundantly.