If you've read about propagation, you've likely encountered the term "rooting hormone" — usually in reference to auxins that trigger root cell differentiation. Auxins are well-understood, well-documented, and well-regarded in propagation science.
But root initiation is only half of what happens at a node during propagation. The other half — equally important, less frequently discussed — is shoot emergence. And the compounds primarily responsible for that are cytokinins.
What Cytokinins Are
Cytokinins are a class of plant growth compounds that regulate cell division. They're produced primarily in root tips and transported upward through the plant, where they play several roles: promoting cell division in shoot tissue, delaying leaf senescence (the aging and yellowing of older leaves), stimulating lateral bud activity, and coordinating growth between above-ground and below-ground parts of the plant.
In the context of propagation, their most relevant function is bud activation. Cytokinins are the compounds that signal axillary buds — the small buds at nodes that will become side shoots or new stems — to break dormancy and begin producing new growth.
The Growth Balance at the Node
Plant growth is largely regulated by the ratio of different growth compounds in any given tissue. A high auxin ratio promotes root formation. A high cytokinin ratio promotes shoot formation. Equal ratios promote undifferentiated cell division.
This ratio explains much of what propagators observe empirically: applying rooting compounds to a cutting tip encourages roots but can suppress shoot emergence. Pinching out the growing tip of a plant reduces auxin flow and allows cytokinins (traveling up from existing roots) to dominate, triggering lateral bud activation and the branching that follows.
It also explains why wet stick propagation — rooting a leafless node in substrate — benefits from cytokinin support at the node. The node needs to produce both roots and a new shoot simultaneously, which requires balanced signaling from both compound classes.
Natural Cytokinin Sources
Several natural materials contain cytokinin-class compounds. Coconut water is one of the most well-documented: it contains naturally occurring cytokinins, along with other growth-regulating compounds that have made it a research tool in plant tissue culture for decades. Seaweed extracts — particularly from cold-water species — also contain cytokinins and have been used in horticulture as plant growth regulators for plant division and branching.
This is the science behind the Plantiqo approach: rather than relying on synthetic plant hormones, the formulations in Plantiqo Emerge Node Paste draw on natural cytokinin sources — coconut water and seaweed extract — combined with willow bark extract and aloe juice, to create a balanced botanical environment at the node that supports both root initiation and shoot activation.
Why This Matters for Dormant Node Propagation
The practical implication is straightforward: if your propagation support contains only rooting compounds, you're optimizing for root production without providing the signals that drive shoot emergence. A cutting may produce roots efficiently while the axillary bud at the node remains dormant — particularly on wet stick cuttings where the energy budget is limited.
Adding cytokinin support — whether through coconut water, seaweed extract, or a formulated product that includes both — addresses both halves of the propagation process simultaneously. Roots and shoots, together, from the same node, with balanced botanical signaling.
The Bigger Picture
Plant growth compounds are not isolated actors. They work in concert, in ratios, in response to environmental signals that are themselves complex. What makes plant propagation science fascinating — and occasionally humbling — is that even now, researchers are still characterizing the full complexity of how plants regulate their own growth.
What's clear is that providing a more complete botanical environment at the node — rather than just a single rooting compound — produces better outcomes in water-based and substrate propagation alike. That's not a marketing claim. It's what the underlying biology would predict, and increasingly what growers observe in practice.
