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Gardening glossary

Node

A node is the small swollen point on a stem where a leaf attaches, an axillary bud sits, and — critically — where new roots and side branches can develop. The smooth section of stem between two nodes is called an internode. Every leaf scar, every side shoot, every aerial root on a Monstera traces back to a node.

Why nodes matter so much in practical gardening:

**Propagation.** A stem cutting must include at least one node to root successfully. The node contains the meristematic tissue (undifferentiated cells) that can reorganize into root cells. A cutting taken from the middle of an internode, with no node, will sit in water indefinitely and rot. When you cut a pothos vine for propagation, look for the brown bump on the underside of the stem opposite each leaf — that's the node, and that's where roots will emerge.

**Pruning.** Cutting just above a node (about a quarter inch above) prompts the axillary buds at that node to break dormancy and grow into new side branches, making the plant bushier. Cutting in the middle of an internode leaves a dead stub that may die back to the next node anyway and looks ugly in the meantime.

**Reading plant health.** Long internodes (lots of space between nodes) typically mean the plant is etiolating from too little light. Short, tight internodes mean strong growing conditions.

**Aerial roots.** On climbing aroids like Monstera and Philodendron, the aerial root that emerges from each node is what attaches the plant to a tree (or your moss pole). These can also be cut and planted to start new plants.

In tomato plants, nodes are where you'll find suckers — the side shoots that grow at a 45-degree angle from the leaf axil. Indeterminate tomato growers pinch these for a cleaner plant; determinate growers leave them. Either way, knowing where the nodes are is the first step.

Where this comes up in our guides

Related terms

Leaf axil

A leaf axil is the angle where a leaf meets the stem. Inside that crook sits an axillary bud that can grow into a new branch, flower, or sucker. Most pruning, pinching, and pollination decisions revolve around what's happening at the leaf axil.

Propagation

Propagation is creating new plants from an existing one — through cuttings, division, layering, or seed. Most houseplants propagate easily from stem cuttings rooted in water or soil, making it the cheapest way to grow your collection.

Etiolation

Etiolation is the pale, stretched, leggy growth a plant produces when it isn't getting enough light. Stems elongate, internodes get long, leaves get smaller and lighter, and the whole plant reaches toward the nearest window in search of more photons.

Fenestration

Fenestration is the natural splits and holes that develop in the leaves of mature Monstera and related aroids. It's a sign of maturity and good growing conditions, not damage — and it requires bright light plus a vertical support to develop fully.