Training cannabis plants with topping, LST (low stress training), and HST (high stress training) improves light penetration, balances the canopy and increases overall yield. LST for autoflower and photoperiod strains are different, because autos have less time to heal from the impact of low stress, and other forms of training.
When To Start Low Stress Training Weed?
You can start low stress training (LST) weed as soon as branches or stems are large enough to be tied down, bent, or manipulated. However, it’s highly recommended to allow plants 2-3 weeks in the vegetative stage, and most expert cannabis growers perform LST techniques after 3-4 weeks of growth.