Training, Pruning & Plant Structure
Dominant Cola
A dominant cola is the main, top bud on a cannabis plant that grows larger than the others.
What a Dominant Cola Is
A dominant cola is the largest and tallest bud on a cannabis plant. It usually grows at the very top of the main stem and gets the most light. Because of this, it often becomes bigger and denser than the side buds.
Why Dominant Colas Form
Dominant colas form because of apical growth and apical dominance. The top of the plant grows faster and sends signals that slow down lower branches. This causes the plant to focus energy on one main bud instead of spreading growth evenly.
Why Some Growers Keep a Dominant Cola
In cannabis growing, some growers like having a dominant cola because it can produce a large, impressive bud. Others choose to limit dominant cola growth by topping or training the plant. This spreads growth across multiple colas, which can increase total yield and improve light use.
Potential Problems With Dominant Colas
Problems with dominant colas include uneven bud size, shading of lower buds, and airflow issues near the top of the plant. Very large colas can also trap moisture and increase the risk of mold if humidity is too high.
How Growers Manage Dominant Colas
To manage dominant colas, growers use topping, FIMing, low-stress training (LST), or trellising to even out the canopy. Good airflow and humidity control help keep large colas healthy during flowering.
Why Understanding Dominant Colas Matters
A dominant cola is a natural growth feature. Knowing how to control it helps growers shape their plants, balance yields, and reduce problems during flowering.
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