Training, Pruning & Plant Structure
LST (Low-Stress Training)
Low-Stress Training (LST) is a plant training technique that involves gently bending and securing cannabis branches to shape growth. It encourages an even canopy without cutting or significantly damaging the plant.
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What Low-Stress Training Is
Low-Stress Training (LST) is a cultivation method used to manipulate cannabis plant structure by bending and tying down stems rather than cutting them. The technique works by altering the plant’s exposure to light and redistributing growth hormones without removing plant tissue, allowing for structural control with minimal recovery time.
How LST Reduces Apical Dominance
By bending the main stem and side branches horizontally, LST reduces apical dominance and encourages lower growth sites to develop more vigorously. This creates a wider, flatter canopy where multiple branches receive equal light exposure. Improved light distribution can increase the number of productive bud sites and enhance overall yield potential.
Canopy Development Through Branch Bending
LST is typically performed during the vegetative stage, when stems are flexible and plants are actively growing. Growers use soft ties, garden wire, or clips to secure branches in position. As the plant continues to grow, adjustments are made to maintain even spacing and prevent overcrowding.
When and How to Perform LST
One of the primary advantages of LST is reduced stress compared to high-impact pruning methods. Because no major cuts are made, plants continue growing with little interruption. This makes LST especially useful for growers seeking consistent development without extended recovery periods.
Advantages of Low-Stress Training
LST can be used alone or in combination with techniques such as topping to further refine plant structure. Together, these methods help manage plant height, improve airflow, and maximize light penetration throughout the canopy.
Combining LST with Other Training Techniques
In cannabis cultivation, LST is a widely adopted training method for improving canopy uniformity and increasing yield efficiency. When applied consistently and carefully, it allows growers to shape plant architecture while maintaining steady growth momentum.
Related terms:
Plant Training, Apical Dominance, Topping, Vegetative Stage, Canopy Management, Node, Main Cola, Pruning
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