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Definition – What is the meaning of Node (N)?

A node is the part of the plant stem where the flowers, branches, and leaves first start to grow. Nodes can hold several leaves and buds that have the capacity of growing and spreading into branches. In some plants, the nodes can additionally produce adventitious roots.

It is important to regularly trim and prune plants to keep the nodes healthy and encourage the production of new buds, stems, and roots.

Nodes are also quite important when it comes to propagation. This is applicable to both herbaceous and woody plants.

Node explained by Bud Bionics  

Nodes are commonly identified by a mild thickening and knob-shaped surface across the stem. In trees or woody plants, nodes are also characterized by a scar left behind by a withering leaf. Plants that have hollow stems often display tougher and more solid nodes. These include, but are not limited to, bamboos, hydrangeas, and forsythia, among others.

When pruning, it is advisable to trim above the node to encourage dormant buds to grow. According to horticulturalists, pruning below the stem carries risk of plant-borne diseases or even rotting.

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