Cultivation Method Low Stress Training

Low Stress Training (LST) is a cultivation technique in which growers gently bend and tie down cannabis stems during the vegetative stage to encourage horizontal growth rather than vertical stretch. This method distributes light exposure more evenly across the canopy and promotes development of multiple colas rather than a single dominant central leader. LST differs from high-stress techniques like topping or pruning by avoiding cutting or removing plant tissue, instead using mechanical positioning to redirect growth. The practice is commonly documented across indoor and outdoor cultivation systems, with breeders frequently working with LST-responsive phenotypes that show good branch flexibility. Growers employing LST often report managing plant height in space-limited environments while maintaining or increasing overall yield potential.

Breeders select for cultivars with flexible stem structure and resilient branch architecture to enhance suitability for LST protocols. Documenting phenotypic response to gentle training helps establish which genetics maintain vigor and branching patterns favorable to this non-destructive approach.